Leaf (forked from FabricMC/fabric) | PZ Modding Community | Page 3

jagged scarab Aug 16, 2025, 1:42 PM

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No

floral sluice Aug 16, 2025, 1:42 PM

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class name cant be the same as the other mixins btw, have to be unique

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and it needs to also be added to the mixins json file

rare mural Aug 16, 2025, 1:42 PM

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I think you need to take the cir variable

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And if it's cancelable, you need to either call cir.cancel() or set the return value.

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But it's a void function.

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So probably don't need to set cancelable

jagged scarab Aug 16, 2025, 1:43 PM

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rare mural I think you need to take the cir variable

Yeah its a void function. No return no argument
CallbackInfoReturnable<String> cir ??

floral sluice Aug 16, 2025, 1:43 PM

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having CallbackInfoReturnable is only useful if the original function returns something and you want to capture or manipulate it

rare mural Aug 16, 2025, 1:43 PM

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just CallbackInfo ci

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yea

jagged scarab Aug 16, 2025, 1:48 PM

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Okay the game starts let's see if it print hello world when a game start

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Yess
LOG : Mod f:0, t:1755352169599> The game starts!

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Let's pop a new NewWindow in this context

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No window poped

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How can I run my own thread loop function?

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Or redirect the OnRender/OnTick function to call mine?

rare mural Aug 16, 2025, 1:58 PM

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just making the window wont do it

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you need to add it to the UIManager

floral sluice Aug 16, 2025, 2:00 PM

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when in doubt, do it how the game does it

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search for familiar strings/classes/functions in the decompile and see where it takes you

jagged scarab Aug 16, 2025, 2:02 PM

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rare mural you need to add it to the UIManager

UIManager uiManager = new UIManager();
        uiManager.addUi(viewport);

?

rare mural Aug 16, 2025, 2:02 PM

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no

jagged scarab Aug 16, 2025, 2:02 PM

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I'm grepping that

rare mural Aug 16, 2025, 2:02 PM

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the UIManager is a static class

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you need to write another mixin

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where you define an invoker

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then from your other mixin you use that invoker

jagged scarab Aug 16, 2025, 2:04 PM

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rare mural you need to write another mixin

Another Mixin class or method ?

rare mural Aug 16, 2025, 2:04 PM

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@Mixin(UIManager.class)
public interface UIManagerInvoker {
  @Invoker("AddUI")
  public static void invokeAddUI(UIElementInterface uiElementInterface) {
    throw new AssertionError();
  }
}

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Whole new mixin

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make sure to register it in the mod config

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Then from your original mixin, do

UIManagerInvoker.invokeAddUI(theNewWindowInstance);

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Might work, might not. You might need to create an invoker on the constructor of NewWindow and use that to construct it, not sure.

jagged scarab Aug 16, 2025, 2:08 PM

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rare mural Whole new mixin

And how I use it in ExampleMixin.java ?

rare mural Aug 16, 2025, 2:08 PM

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rare mural Then from your original mixin, do ```java UIManagerInvoker.invokeAddUI(theNewWi...

.

jagged scarab Aug 16, 2025, 2:09 PM

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UIManagerInvoker.invokeAddUI(uiElement);

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Lets retry

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@Mixin(UIManager.class)
public interface UIManagerInvoker {
    @Invoker("AddUI")
    public static void invokeAddUI(UIElementInterface uiElementInterface) {
        //throw new AssertionError();
        UIManager.AddUI(uiElementInterface);
    }
}```

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Black screen after loading the game. Inputs generates exceptions

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STACK TRACE
-----------------------------------------
Callframe at: isClimbingRope
function: ChangeClimbDirection -- file: CFarming_Interact.lua line # 384 | Vanilla

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Wtf

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LOG  : Mod          f:0, t:1755353686193> The game starts!
DEBUG: Leaf         f:0, t:1755353686202> NativeMethodAccessorImpl.invoke0 (Native Method)> Generating mapped inner class zombie/gameStates/IngameState$Anonymous$57f40be3686240ed8a4b46a9bbc89f53 (originally com/example/mixin/ExampleMixin$1)
ERROR: General      f:0, t:1755353686247> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: Mixin transformation of com.example.mixin.UIManagerInvoker failed at KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:579).
    Stack trace:
        dev.aoqia.leaf.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:579)

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dev.aoqia.leaf.loader.impl.launch.knot.KnotClassDelegate.tryLoadClass(KnotClassDelegate.java:460)
        dev.aoqia.leaf.loader.impl.launch.knot.KnotClassDelegate.loadClass(KnotClassDelegate.java:322)
        dev.aoqia.leaf.loader.impl.launch.knot.KnotClassLoader.loadClass(KnotClassLoader.java:118)
        java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:525)
        knot//zombie.gameStates.IngameState.handler$zza000$modid$enter(IngameState.java:2104)
        knot//zombie.gameStates.IngameState.enter(IngameState.java:846)
        knot//zombie.gameStates.GameStateMachine.update(GameStateMachine.java:133)
        knot//zombie.GameWindow.logic(GameWindow.java:382)
        knot//zombie.GameWindow.frameStep(GameWindow.java:916)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)
    Caused by: org.spongepowered.asm.mixin.transformer.throwables.IllegalClassLoadError: Illegal classload request for accessor mixin com.example.mixin.UIManagerInvoker. The mixin is missing from modid.mixins.json which owns package com.example.mixin.* and the mixin has not been applied.
        org.spongepowered.asm.mixin.transformer.MixinProcessor.applyMixins(MixinProcessor.java:323)
        org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClass(MixinTransformer.java:237)
        org.spongepowered.asm.mixin.transformer.MixinTransformer.transformClassBytes(MixinTransformer.java:202)
        dev.aoqia.leaf.loader.impl.launch.knot.KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:572)
        ... 12 more

floral sluice Aug 16, 2025, 2:21 PM

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jagged scarab ```java @Mixin(UIManager.class) public interface UIManagerInvoker { @Invoker...

is this ytour mixin?

jagged scarab Aug 16, 2025, 2:22 PM

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floral sluice is this ytour mixin?

package com.example.mixin;

import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.gen.Invoker;
import zombie.ui.UIElementInterface;
import zombie.ui.UIManager;

@Mixin(UIManager.class)
public interface UIManagerInvoker {
    @Invoker("AddUI")
    public static void invokeAddUI(UIElementInterface uiElementInterface) {
        //throw new AssertionError();
        UIManager.AddUI(uiElementInterface);
    }
}```

floral sluice Aug 16, 2025, 2:22 PM

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it literally says the error in the log you posted

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did you read it?

jagged scarab Aug 16, 2025, 2:22 PM

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Yes

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ERROR: General      f:0, t:1755353686247> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: Mixin transformation of com.example.mixin.UIManagerInvoker failed at KnotClassDelegate.getPostMixinClassByteArray(KnotClassDelegate.java:579).
    Stack trace:```

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modid.mixins.json

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Where is this damn file

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/leaf-example-mod/build/resources/main/modid.mixins.json
/leaf-example-mod/src/main/resources/modid.mixins.json

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{
    "required": true,
    "package": "com.example.mixin",
    "compatibilityLevel": "JAVA_17",
    "mixins": [
        "ExampleMixin",
        "UIManagerInvoker" ///// <<<< THIS
    ],
    "injectors": {
        "defaultRequire": 1
    },
    "overwrites": {
        "requireAnnotations": true
    }
}```

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Same boring black screen

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The game +intellij just crash while I was trying to minimize the game....

floral sluice Aug 16, 2025, 2:32 PM

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jagged scarab Where is this damn file

in IDEA you can CTRL+N and search for a file

jagged scarab Aug 16, 2025, 2:33 PM

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Okay now

java.lang.NullPointerException: Cannot invoke "java.lang.Boolean.booleanValue()" because the return value of "zombie.ui.UIElementInterface.isFollowGameWorld()" is null at UIManager.update(UIManager.java:673).

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I messed with the UIManager now everything breaks

floral sluice Aug 16, 2025, 2:34 PM

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jagged scarab ```java package com.example.mixin; import org.spongepowered.asm.mixin.Mixin; im...

also this isnt correct

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the throw new AssertionError() is there to make sure the invokeAddUI is there for a reason, im pretty sure it's to make sure that you dont call the wrong thing on accident

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you dont do any code in there, you want to use the invoker like a proxy method

jagged scarab Aug 16, 2025, 2:35 PM

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Yes but the proxy must call the right method like so?

//throw new AssertionError();
UIManager.AddUI(uiElementInterface);

floral sluice Aug 16, 2025, 2:36 PM

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So you would use your invoker like UIManagerInvoker.AddUI(iface) not do UIManager.AddUI in the invoker method

jagged scarab Aug 16, 2025, 2:36 PM

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Aaaah

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simply like that ?

@Mixin(UIManager.class)
public interface UIManagerInvoker {
    @Invoker("AddUI")
    public static void invokeAddUI(UIElementInterface uiElementInterface) {
        throw new AssertionError();
    }
}```

floral sluice Aug 16, 2025, 2:36 PM

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yes keep it that

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then you call your invokeAddUI from another mixin or entrypoint or wherever you want

rare mural Aug 16, 2025, 2:38 PM

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jagged scarab Yes but the proxy must call the right method like so? ```java //throw new Assert...

All the invoker does is let you call UIManager.AddUI since you can't call it directly.

jagged scarab Aug 16, 2025, 2:38 PM

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I must repeat the Mixin process for every call I make ?

rare mural Aug 16, 2025, 2:39 PM

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To game code? Yes.

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You only have to write the invoker once, but then you can now call that method as much as you want.

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You have to "expose" game things in order for your code to interact with it.

jagged scarab Aug 16, 2025, 2:39 PM

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Nice

jagged scarab Aug 16, 2025, 2:39 PM

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rare mural You have to "expose" game things in order for your code to interact with it.

Okkkk it makes sense

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Same errors, game crashe

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The logs are polluted with the same Exception

rare mural Aug 16, 2025, 2:51 PM

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which is what

jagged scarab Aug 16, 2025, 2:51 PM

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Which is

LOG  : Mod          f:0, t:1755355205701> The game starts!
DEBUG: Leaf         f:0, t:1755355205706> NativeMethodAccessorImpl.invoke0 (Native Method)> Generating mapped inner class zombie/gameStates/IngameState$Anonymous$135f0306fc854a75a7897f96ee601c84 (originally com/example/mixin/ExampleMixin$1)
ERROR: General      f:0, t:1755355206849> ExceptionLogger.logException> Exception thrown
    java.lang.NullPointerException: Cannot invoke "java.lang.Boolean.booleanValue()" because the return value of "zombie.ui.UIElementInterface.isFollowGameWorld()" is null at UIManager.update(UIManager.java:673).
    Stack trace:
        knot//zombie.ui.UIManager.update(UIManager.java:673)
        knot//zombie.GameWindow.logic(GameWindow.java:326)
        knot//zombie.GameWindow.frameStep(GameWindow.java:916)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

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an error that don't seems to be corelated to the code I'm editing which turn the developement very hard

rare mural Aug 16, 2025, 2:53 PM

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It seems related

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What it's saying is, that when UIManager.update was called by the main loop

jagged scarab Aug 16, 2025, 2:53 PM

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rare mural It seems related

Maybe related but there is not very much informations

rare mural Aug 16, 2025, 2:53 PM

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It ried to call .isFollowGameWorld() on something and that returned null, when it should be a boolean

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it's perfectly enough information..

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you just have to read...

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and give yourself a chance to understand

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again

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when UIManager.update is called

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it's doing some work on its children

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it goes to called isFollowGameWorld on that object, and it reutrns null instead of boolean

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This is probably your NewWindow instance, which is probably broken

jagged scarab Aug 16, 2025, 2:54 PM

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I understand the error message but the question is what I did wrong in MY code not .isFollowGameWorld() ?

rare mural Aug 16, 2025, 2:55 PM

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read what i said three or four more times

floral sluice Aug 16, 2025, 2:55 PM

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jagged scarab I must repeat the Mixin process for every call I make ?

Keep in mind that you only need 1 mixin class file per class you are mixin. So one for UIManager, one for say IsoPlayer, etc

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its not 1 class per method thankfully

rare mural Aug 16, 2025, 2:55 PM

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hehe

jagged scarab Aug 16, 2025, 2:56 PM

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rare mural This is probably your NewWindow instance, which is probably broken

There is no NewWindow instance

rare mural Aug 16, 2025, 2:56 PM

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the short of it seems to be that you are successfully adding something to UIManager but it doesn't like it

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what?

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then what are you adding to the UIManager?

jagged scarab Aug 16, 2025, 2:56 PM

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rare mural then what are you adding to the UIManager?

I'm calling AddUI which takes a UIElementInterface

rare mural Aug 16, 2025, 2:56 PM

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yes.. the window instance

jagged scarab Aug 16, 2025, 2:57 PM

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rare mural yes.. the window instance

yes, but I changed the original
window = new NewWindow(...)

rare mural Aug 16, 2025, 2:57 PM

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i don't know what you are saying

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show all the code

jagged scarab Aug 16, 2025, 2:58 PM

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ExampleMod.java

package com.example;

import dev.aoqia.leaf.api.ModInitializer;

import zombie.debug.DebugLog;
import zombie.debug.DebugLogStream;

//import zombie.ui.NewWindow;

public class ExampleMod implements ModInitializer {
    public static final String MOD_ID = "modid";
    public static final DebugLogStream LOGGER = DebugLog.Mod;

    public static final String GAME_VERSION_CHANGED_EVENT = "GameVersionChanged";

    @Override
    public void onInitialize() {
        System.out.println("Hello Leaf World!!! >w<");
        //NewWindow window;
        //window = new NewWindow(0, 0, 500, 500, true);
        //window.render();
    }
}

rugged fog Aug 16, 2025, 2:58 PM

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Coming in late, but is there a benefit to using Java for UI? I thought the Lua exposure for UI is one of the few near 100% cases.

floral sluice Aug 16, 2025, 2:58 PM

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It's probably due to UIElementInterface.isFollowGameWorld() probably returns a field.booleanValue() or something and field is null because you instantiated the class wrong OR the field not set for some other reason or something

floral sluice Aug 16, 2025, 2:58 PM

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rugged fog Coming in late, but is there a benefit to using Java for UI? I thought the Lua e...

he's doing the whole project zomboid in first person 3d thing

rugged fog Aug 16, 2025, 2:59 PM

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I remember, but UI?

rare mural Aug 16, 2025, 2:59 PM

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floral sluice It's probably due to UIElementInterface.isFollowGameWorld() probably returns a f...

this is what i'm saying too

rare mural Aug 16, 2025, 2:59 PM

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rugged fog I remember, but UI?

just the window to draw the first person view into..

rugged fog Aug 16, 2025, 2:59 PM

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Ooh

jagged scarab Aug 16, 2025, 2:59 PM

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UIManagerInvoker.java

package com.example.mixin;

import org.spongepowered.asm.mixin.Mixin;
import org.spongepowered.asm.mixin.gen.Invoker;
import zombie.ui.UIElementInterface;
import zombie.ui.UIManager;

@Mixin(UIManager.class)
public interface UIManagerInvoker {
    @Invoker("AddUI")
    public static void invokeAddUI(UIElementInterface uiElementInterface) {
        throw new AssertionError();
    }
}

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ExampleMixin.java

📎 message.txt

rare mural Aug 16, 2025, 3:00 PM

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Are you using the minecraft plugin? You're not using the right syntax for the method names etc I think

floral sluice Aug 16, 2025, 3:00 PM

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lol thats why

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you're literally returning null in the method you override

rare mural Aug 16, 2025, 3:00 PM

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what is that

floral sluice Aug 16, 2025, 3:00 PM

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please tell me you have some java experience going into this, you're not gonna like it if you dont, especially for a mod this size going that far into the engine

rare mural Aug 16, 2025, 3:00 PM

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There's no reason to use UIElementInterface directly, it's an interface!

jagged scarab Aug 16, 2025, 3:01 PM

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rare mural There's no reason to use UIElementInterface directly, it's an interface!

Oh I was thinking this was part of the UI not an actual Java interface

rare mural Aug 16, 2025, 3:01 PM

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This is why I said do more simple stuff first. I can barely fathom of more technically challenging goals if I tried.

rare mural Aug 16, 2025, 3:01 PM

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jagged scarab Oh I was thinking this was part of the UI not an actual Java interface

NewWindow implements the interface

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Make a window

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Pass it to AddUI

jagged scarab Aug 16, 2025, 3:01 PM

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floral sluice you're literally returning null in the method you override

Where?

rare mural Aug 16, 2025, 3:01 PM

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literally everywhere

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@Override
            public Boolean isCapture() {
                return null;
            }

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return type Boolean

returns null anyway

floral sluice Aug 16, 2025, 3:02 PM

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in the interface you override..

rare mural Aug 16, 2025, 3:02 PM

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I'm surprised it even compiles, new on an interface?

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the hell does that even do.

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maybe java interfaces are not like other languages

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¯_(ツ)_/¯

floral sluice Aug 16, 2025, 3:03 PM

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test

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why did my messag edelete

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its the same as if you were to implement an interface

rare mural Aug 16, 2025, 3:03 PM

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huh?

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like viewport there is a class object?

floral sluice Aug 16, 2025, 3:04 PM

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you know how you can create a class to implement an interface

rare mural Aug 16, 2025, 3:04 PM

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sure, statically

jagged scarab Aug 16, 2025, 3:04 PM

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rare mural literally everywhere

Everywhere in which file?
I'm trying

    @Inject(method = "enter", at = @At("RETURN"), cancellable = false)
    private void enter(CallbackInfo ci) {
        LOGGER.println("The game starts!");
        NewWindow viewport;
        viewport = new NewWindow(0, 0, 500, 500, true);
        UIManagerInvoker.invokeAddUI(viewport);
    }

floral sluice Aug 16, 2025, 3:04 PM

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thats what its doing basically but I think its anonymous class or something

rare mural Aug 16, 2025, 3:04 PM

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floral sluice thats what its doing basically but I think its anonymous class or something

huh, i see

rare mural Aug 16, 2025, 3:04 PM

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jagged scarab Everywhere in which file? I'm trying ```java @Inject(method = "enter", at = ...

this looks more correct

floral sluice Aug 16, 2025, 3:05 PM

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much more

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but NewWindow is still the problem child 😂

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waiot nvm thats the same mixin, all is well

rare mural Aug 16, 2025, 3:09 PM

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jagged scarab Everywhere in which file? I'm trying ```java @Inject(method = "enter", at = ...

so does it work?

jagged scarab Aug 16, 2025, 3:10 PM

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rare mural so does it work?

YES ! Kinda

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A small window appear in the upper right corner but not a 500*500 one

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And there are errors in cascade

rare mural Aug 16, 2025, 3:11 PM

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what is cascade

jagged scarab Aug 16, 2025, 3:11 PM

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The ESC key doesn't work anymmore and produce errors

jagged scarab Aug 16, 2025, 3:11 PM

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rare mural what is cascade

Sorry it's a french word

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I mean collateral ?

rare mural Aug 16, 2025, 3:12 PM

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dunno, but you can share the errors

jagged scarab Aug 16, 2025, 3:12 PM

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LOG  : General      f:148, t:1755356939703> -----------------------------------------
STACK TRACE
-----------------------------------------
function: updateTooltip -- file: ISScrollingListBox.lua line # 375 | Vanilla
function: prerender -- file: ISScrollingListBox.lua line # 520 | Vanilla

ERROR: General      f:148, t:1755356939704> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: attempted index: isMouseOver of non-table: zombie.ui.NewWindow@54bd31ff at KahluaThread.tableget(KahluaThread.java:1530).
    Stack trace:
        knot//se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1530)
        knot//se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:502)
        knot//se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:174)
        knot//se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1826)
        knot//se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1668)
        knot//se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:38)
        knot//zombie.ui.UIElement.render(UIElement.java:1990)
        knot//zombie.ui.UIElement.render(UIElement.java:2000)
        knot//zombie.ui.UIElement.render(UIElement.java:2000)
        knot//zombie.ui.UIManager.render(UIManager.java:419)
        knot//zombie.gameStates.IngameState.renderFrameUI(IngameState.java:1331)
        knot//zombie.gameStates.IngameState.renderframeui(IngameState.java:1317)
        knot//zombie.gameStates.IngameState.renderInternal(IngameState.java:1456)
        knot//zombie.gameStates.IngameState.render(IngameState.java:1406)
        knot//zombie.gameStates.GameStateMachine.render(GameStateMachine.java:28)
        knot//zombie.GameWindow.renderInternal(GameWindow.java:468)
        knot//zombie.GameWindow.frameStep(GameWindow.java:940)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

rare mural Aug 16, 2025, 3:12 PM

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hmm

jagged scarab Aug 16, 2025, 3:12 PM

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And also for the ESC key

LOG  : General      f:3105, t:1755357010553> -----------------------------------------
STACK TRACE
-----------------------------------------
function: setVisibleAllUI -- file: ISUIHandler.lua line # 15 | Vanilla
function: ToggleEscapeMenu -- file: MainScreen.lua line # 2060 | Vanilla

ERROR: General      f:3105, t:1755357010553> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: attempted index: isVisible of non-table: zombie.ui.NewWindow@54bd31ff at KahluaThread.tableget(KahluaThread.java:1530).
    Stack trace:
        knot//se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1530)
        knot//se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:502)
        knot//se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:174)
        knot//se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1826)
        knot//se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1653)
        knot//se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:66)
        knot//se.krka.kahlua.integration.LuaCaller.protectedCallVoid(LuaCaller.java:139)
        knot//zombie.Lua.Event.trigger(Event.java:72)
        knot//zombie.Lua.LuaEventManager.triggerEvent(LuaEventManager.java:315)
        knot//zombie.input.GameKeyboard.update(GameKeyboard.java:64)
        knot//zombie.GameWindow.logic(GameWindow.java:308)
        knot//zombie.GameWindow.frameStep(GameWindow.java:916)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

rare mural Aug 16, 2025, 3:13 PM

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That makes sense I guess

jagged scarab Aug 16, 2025, 3:13 PM

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But the NewWindow poped !

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But it do not refresh and the layout is weird

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With a close button in the middle...

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I will go soon for an hour or so

rare mural Aug 16, 2025, 3:16 PM

#

NewWindow doesn't call the super constructor

jagged scarab Aug 16, 2025, 3:16 PM

#

I will be back

jagged scarab Aug 16, 2025, 3:16 PM

#

rare mural NewWindow doesn't call the super constructor

And?

#

Also why

rare mural Aug 16, 2025, 3:17 PM

#

The base classe of NewWindow, UIElement is the thing that sets the lua table

jagged scarab Aug 16, 2025, 3:17 PM

#

interesting

rare mural Aug 16, 2025, 3:18 PM

#

try

#

viewport.set_table(LuaManager.platform.newTable())

#

though you'll probably need an invoker heh

jagged scarab Aug 16, 2025, 3:19 PM

#

rare mural though you'll probably need an invoker heh

For LuaManager.platform.newTable() ?

#

set_table method not found

rare mural Aug 16, 2025, 3:20 PM

#

setTable

jagged scarab Aug 16, 2025, 3:20 PM

#

No build error with LuaManager.platform.newTable()

#

I try to launch the game and see what appen

rare mural Aug 16, 2025, 3:21 PM

#

I think you need an ISUIElementWrapper... 🤔

jagged scarab Aug 16, 2025, 3:25 PM

#

Tell me all your knowledge about the UI please.

#

I must go, see you later

rare mural Aug 16, 2025, 3:29 PM

#

jagged scarab Tell me all your knowledge about the UI please.

I'm literally just browsing same time you are, I don't know anything for sure lol

spark plinth Aug 16, 2025, 4:09 PM

#

Figured it out. Was trying to run example mod from workshop. Only when i run the game using leaf-loader repo via runClient task it gave me an error Mod 'Example mod' (modid) 1.0.0 requires version 1.2.0 or later of leafloader, which is missing! i don't know why it wasn't logging using real game client
Anyhow, (my leaf loader version was 1.4.1) rebuilding mod via specifying letest version of loader did the trick and now it loads 🎉

floral sluice Aug 16, 2025, 4:25 PM

#

spark plinth Figured it out. Was trying to run example mod from workshop. Only when i run the...

Hmm that's odd, it should've respected the >=1.2.0

#

but yeah generally you want to update the example mod depending on the loader's version as well, or use * which means any version

floral sluice Aug 16, 2025, 4:27 PM

#

spark plinth Figured it out. Was trying to run example mod from workshop. Only when i run the...

This usually shows up in the form of a GUI with the error. Did it not do that?

spark plinth Aug 16, 2025, 4:28 PM

#

No error both in GUI and logs

floral sluice Aug 16, 2025, 4:29 PM

#

hmm weird

#

Not even in logs is weirder, but I am assuming that it didn't show in the log for some reason because the GUI was supposed to show...

#

Did it work for you in the IDE, even when the loader dependency was set to >=1.2.0

rare mural Aug 16, 2025, 4:35 PM

#

floral sluice hmm weird

Any news about leaf in prod?

floral sluice Aug 16, 2025, 4:36 PM

#

not really

#

you can use it, but it's limited to client for now, because I need to figure out how im going to edit the server scripts for each platform

#

They made a launcher for the client but no the server 🙁 wheres the love lol

#

Anyway, im trying to take breaks over the weekends to prevent burnout, because if I don't like I have been, it's really annoying to work on anything

rare mural Aug 16, 2025, 5:04 PM

#

floral sluice not really

What I mean is wasn't it just not working at all?

floral sluice Aug 16, 2025, 5:30 PM

#

uh it should work unless I'm forgetting something

rare mural Aug 16, 2025, 6:24 PM

#

Remember you were like "Just launch it from the IDE" something about not being able to find mappings in prod

floral sluice Aug 16, 2025, 6:26 PM

#

there are no mappings used in prod

#

I assume you were talking about that one time where in prod the log just ended after only a few lines, which I couldn't replicate at all

rare mural Aug 16, 2025, 10:54 PM

#

@floral sluice I mean this

#

I don't think we ever resolved it. You recommened I just launch from IDE and I've been doing that ever since.

dull stirrup Aug 17, 2025, 12:29 AM

#

first KEE npcs with Leaf

stray rock Aug 17, 2025, 12:31 AM

#

I think this has great potential

#

Me and Snejk are looking into this

valid nova Aug 17, 2025, 12:31 AM

#

👀

#

Yooooo

#

Let's go

#

@floral sluice that's quite a huge leap forward

dull stirrup Aug 17, 2025, 12:32 AM

#

although, they don't move in the metaverse and procedural generation doesn't work

#

but it was at least able to load the classes into JVM and expose them through Lua, so all of the Lua scripts are working fine

rare mural Aug 17, 2025, 2:11 AM

#

I would really love to be involved in java NPC modding. Are you guys working out of github?

stray rock Aug 17, 2025, 2:14 AM

#

rare mural I would really love to be involved in java NPC modding. Are you guys working out...

If you'd like to contribute you would have to ask Snejk, we don't really have a true synced workspace, I just send patches to him over discord

rare mural Aug 17, 2025, 2:15 AM

#

I think I did ask in the past. If there's no room for other people, no worries

jagged scarab Aug 17, 2025, 7:51 AM

#

Hello @floral sluice @rare mural sorry for yesterday I didn't relog

rare mural Aug 17, 2025, 7:52 AM

#

jagged scarab Hello <@268199041542651904> <@127697568166576128> sorry for yesterday I didn't r...

I am only sorry that I didn't get to beat you to it XD

#

I wanted to see if I could surprise you but I got stuck polishing my own project's UI

rare mural Aug 17, 2025, 7:52 AM

#

jagged scarab Hello <@268199041542651904> <@127697568166576128> sorry for yesterday I didn't r...

wb

jagged scarab Aug 17, 2025, 7:53 AM

#

rare mural wb

Today I want to do my window !

#

I'm reading UIManager:update

rare mural Aug 17, 2025, 7:54 AM

#

I think you need to use the wrapper class

#

It sets up the associated lua table

#

I'm not positive

#

but the ISUIElementWrapper seems to maintain a lua table that is wanted by UIManager

jagged scarab Aug 17, 2025, 7:55 AM

#

@rare mural I think I will search for the existing UI buttons to see how they achieve the display of a new window

#

Like the health button

#

Maybe in NewHealthPanel

#

extends NewWindow

#

Okay let's copy past this class to do my own window class

rare mural Aug 17, 2025, 7:59 AM

#

eh i dunno

#

seems like NewHealthPanel is exposed to the lua via the LuaManager.Exposer

#

and it's probably created in the lua

#

@jagged scarab what was the error you were getting yesterday

#

from UIManager

#

Reading the UIManager it really feels like you should be able to create something extending UIElementInterface and call UIManager.AddUI

jagged scarab Aug 17, 2025, 8:11 AM

#

rare mural <@536179643875852294> what was the error you were getting yesterday

Mostly LUA exception, anderrors coming from UIManager:update

rare mural Aug 17, 2025, 8:11 AM

#

what exactly was it though

jagged scarab Aug 17, 2025, 8:12 AM

#

STACK TRACE
-----------------------------------------
function: updateTooltip -- file: ISScrollingListBox.lua line # 375 | Vanilla
function: prerender -- file: ISScrollingListBox.lua line # 520 | Vanilla

ERROR: General      f:52, t:1755357871100> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: attempted index: isMouseOver of non-table: zombie.ui.NewWindow@6e5a2c3 at KahluaThread.tableget(KahluaThread.java:1530).
    Stack trace:
        knot//se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1530)
        knot//se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:502)
        knot//se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:174)
        knot//se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1826)
        knot//se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1668)
        knot//se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:38)
        knot//zombie.ui.UIElement.render(UIElement.java:1990)
        knot//zombie.ui.UIElement.render(UIElement.java:2000)
        knot//zombie.ui.UIElement.render(UIElement.java:2000)
        knot//zombie.ui.UIManager.render(UIManager.java:419)
        knot//zombie.gameStates.IngameState.renderFrameUI(IngameState.java:1331)
        knot//zombie.gameStates.IngameState.renderframeui(IngameState.java:1317)
        knot//zombie.gameStates.IngameState.renderInternal(IngameState.java:1456)
        knot//zombie.gameStates.IngameState.render(IngameState.java:1406)
        knot//zombie.gameStates.GameStateMachine.render(GameStateMachine.java:28)
        knot//zombie.GameWindow.renderInternal(GameWindow.java:468)
        knot//zombie.GameWindow.frameStep(GameWindow.java:940)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

#

LUA Error

rare mural Aug 17, 2025, 8:12 AM

#

scrolling list box..?

jagged scarab Aug 17, 2025, 8:12 AM

#

Yes it's the render function of UIManager

rare mural Aug 17, 2025, 8:12 AM

#

oh i see

#

I see!

jagged scarab Aug 17, 2025, 8:13 AM

#

Look what I'm creating

#

package com.example;

import zombie.ui.NewWindow;

public /*final*/ class UIViewport
        extends NewWindow {
    public static UIViewport instance;
    private static int UI_BORDER_SPACING;

    public UIViewport(int n, int n2) {
        super(n, n2, 10, 10, true);
        this.ResizeToFitY = false;
        this.visible = false;
        instance = this;
        this.width = 300 + UI_BORDER_SPACING;
        this.height = 270 + this.titleRight.getHeight() + 5;
    }

    @Override
    public void render() {
    }

    @Override
    public void update() {
        if (!this.isVisible()) {
            return;
        }
        super.update();
    }

    static {
        UI_BORDER_SPACING = 10;
    }
}```

#

'titleRight' is not public in 'zombie.ui.NewWindow'. Cannot be accessed from outside package

floral sluice Aug 17, 2025, 8:16 AM

#

rare mural I don't think we ever resolved it. You recommened I just launch from IDE and I'v...

Oh ya that should be fixed in loader 1.4.1 that i released the other day

rare mural Aug 17, 2025, 8:16 AM

#

The issue is that UIElement introduces this.table which its render and other logic depend on.

#

While NewWindow inherits UIElement, neither do anything to setup this.table

floral sluice Aug 17, 2025, 8:17 AM

#

stray rock Me and Snejk are looking into this

Let me know if you have any feedback or bugs to report!

rare mural Aug 17, 2025, 8:18 AM

#

UIElement() has a constructor which takes the table if one's already available. And it also has a setTable method for setting it after construction.

#

Inside ISUIElementWrapper you can see that it does things:

    protected void instantiate() {
        UIElement uIElement = new UIElement(this.table);
        this.table.rawset("javaObject", uIElement);
        uIElement.setX(LuaHelpers.castDouble(this.table.rawget("x")));
        uIElement.setY(LuaHelpers.castDouble(this.table.rawget("y")));
        uIElement.setHeight(LuaHelpers.castDouble(this.table.rawget("height")));
        uIElement.setWidth(LuaHelpers.castDouble(this.table.rawget("width")));
        uIElement.setAnchorLeft(LuaHelpers.castBoolean(this.table.rawget("anchorLeft")));
        uIElement.setAnchorRight(LuaHelpers.castBoolean(this.table.rawget("anchorRight")));
        uIElement.setAnchorTop(LuaHelpers.castBoolean(this.table.rawget("anchorTop")));
        uIElement.setAnchorBottom(LuaHelpers.castBoolean(this.table.rawget("anchorBottom")));
        uIElement.setWantKeyEvents(LuaHelpers.castBoolean(this.table.rawget("wantKeyEvents")));
        uIElement.setWantExtraMouseEvents(LuaHelpers.castBoolean(this.table.rawget("wantExtraMouseEvents")));
        uIElement.setForceCursorVisible(LuaHelpers.castBoolean(this.table.rawget("forceCursorVisible")));
        LuaHelpers.callLuaClass(this.table.getMetatable().getString("Type"), "createChildren", this.table);
    }

floral sluice Aug 17, 2025, 8:20 AM

#

rare mural Inside `ISUIElementWrapper` you can see that it does things: ```java protect...

That looks correct. Its doing stuff you would normally do from Lua, in Java.

rare mural Aug 17, 2025, 8:20 AM

#

Well in lua I think you often need to call instantiate and initialise right?

floral sluice Aug 17, 2025, 8:21 AM

#

Yes

rare mural Aug 17, 2025, 8:21 AM

#

This is likely the implementation of those

#

    public void initialise() {
        this.table.rawset("children", LuaManager.platform.newTable());
        KahluaTable tablex = (KahluaTable)LuaManager.env.rawget("ISUIElement");
        double double0 = LuaHelpers.castDouble(tablex.rawget("IDMax"));
        this.table.rawset("ID", double0);
        tablex.rawset("IDMax", double0 + 1.0);
    }

floral sluice Aug 17, 2025, 8:21 AM

#

and when you create your own UI in Lua, you add your own render, update, functions too

#

But its not required though like initialise is

#

I'm not sure if instantiate is needed (in lua) but I would use it anyway

#

Also what is the point of creating a lua ui on the first place?

#

Lua is slow 🙁

rare mural Aug 17, 2025, 8:23 AM

#

Not the goal, he's trying to add something related to NewWindow to the UIManager but it ends up with the exception above

#

UIElement (base class of NewWindow) calls into lua during its java render

#

Once in the lua, it blows up because the UIElement's table is not properly configured

#

Once execution goes into lua though you don't get any useful information out of the stack trace:

        knot//se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1530)
        knot//se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:502)
        knot//se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:174)
        knot//se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1826)
        knot//se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1668)
        knot//se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:38)
        knot//zombie.ui.UIElement.render(UIElement.java:1990)

jagged scarab Aug 17, 2025, 8:27 AM

#

Game crashed ........

rare mural Aug 17, 2025, 8:27 AM

#

no doubt

jagged scarab Aug 17, 2025, 8:28 AM

#

No error messages, just a raw crash

rare mural Aug 17, 2025, 8:29 AM

#

i wouldn't expect the stuff you're doing above to work

jagged scarab Aug 17, 2025, 8:29 AM

#

Why

rare mural Aug 17, 2025, 8:30 AM

#

I doubt that you can just extend game classes like that... Maybe you can? Dunno..

#

Thinking about it you probably can?

floral sluice Aug 17, 2025, 8:33 AM

#

You know, if you really need lua, you can create a submod and write Lua like a normal mod to extend your UI thing

rare mural Aug 17, 2025, 8:34 AM

#

I think it's just the dependence on UIElement that's the issue

#

UIElementInterface is all you technically need

#

So I would probably take a good look at UIElement and see how I can remove anything not needed (like all the lua stuff) and then focus on learning how to use SpriteRenderer to render my own window square, etc

jagged scarab Aug 17, 2025, 8:35 AM

#

rare mural I doubt that you can just extend game classes like that... Maybe you can? Dunno....

There is no compilation errors. The game launch but when the game begin it crash. Also it's a pain because the game took forever to boot on every try

jagged scarab Aug 17, 2025, 8:35 AM

#

rare mural So I would probably take a good look at UIElement and see how I can remove anyth...

me too

rare mural Aug 17, 2025, 8:36 AM

#

UIManager only cares that you're a UIElementInterface that you have a .render() method etc, it's only UIElement that cares about this.table

#

i think you're gonna do it tonight

jagged scarab Aug 17, 2025, 8:42 AM

#

Okey it does not even accept my new class

#

It constantly crash

rare mural Aug 17, 2025, 8:43 AM

#

always show the code

jagged scarab Aug 17, 2025, 8:44 AM

#

package com.example;

import zombie.ui.NewWindow;

public class UIViewport
        extends NewWindow {
    //public static UIViewport instance;
    private static int UI_BORDER_SPACING;

    public UIViewport(int n, int n2) {
        super(n, n2, 10, 10, true);
        this.ResizeToFitY = false;
        this.visible = false;
        //instance = this;
        this.width = 300 + UI_BORDER_SPACING;
        this.height = 270;
    }

    @Override
    public void render() {
        //this.DrawTexture(this.BodyOutline, n - 123 + 2, n2 - 302 + 2, this.alpha);
        //this.Hand_L.render();
    }

    @Override
    public void update() {
        if (!this.isVisible()) {
            return;
        }
        super.update();
    }

    static {
        UI_BORDER_SPACING = 10;
    }
}```

#

    @Inject(method = "enter", at = @At("RETURN"), cancellable = false)
    private void enter(CallbackInfo ci) {
        LOGGER.println("The game starts!");
        UIViewport viewport;
        viewport = new UIViewport(10, 10);
        viewport.setTable(LuaManager.platform.newTable());
        UIManagerInvoker.invokeAddUI(viewport);
    }```

#

In fact it crash always now ?

#

I tried to remove everything from my project and it keep crashing

#

WARN : General      f:0, t:1755420752524> AnimationAssetManager.loadCallback  > Failed to load asset: AssetPath{ "bob/bob_bandagelowerbody.x.loomhash" }
WARN : General      f:0, t:1755420752580> AnimationAssetManager.loadCallback  > Failed to load asset: AssetPath{ "bob/bob_bandagerightarm.x.loomhash" }
WARN : General      f:0, t:1755420752580> AnimationAssetManager.loadCallback  > Failed to load asset: AssetPath{ "bob/bob_bandagerightleg.x.loomhash" }
LOG  : General      f:0, t:1755420752594> SandboxOptions.load() end
LOG  : General      f:0, t:1755420752594> ItemPickerJava.Parse() start

Is the last lines of log before the game crash

rare mural Aug 17, 2025, 9:02 AM

#

dunno

jagged scarab Aug 17, 2025, 9:02 AM

#

It's not due to my code apparently help me

#

how the fuck I'm I supposed to develop my mod

rare mural Aug 17, 2025, 9:03 AM

#

hehe not sure what advice to give, maybe aoqia does?

jagged scarab Aug 17, 2025, 9:05 AM

#

Game broke by itself it's lovely

#

How can I reset the cached game?

#

Just by deleting the run/ folder?

floral sluice Aug 17, 2025, 9:31 AM

#

ye

floral sluice Aug 17, 2025, 9:31 AM

#

jagged scarab It's not due to my code apparently help me

you can set breakpoitns in the decompiled code

jagged scarab Aug 17, 2025, 9:39 AM

#

floral sluice you can set breakpoitns in the decompiled code

Where is it ? I don't use any debugger ?

#

I didn't modify the game itself

#

And I dunno how to reset the game to an anterior working one

#

Cause it brokes itself

#

Yesterday it worked as a charm and now it crashes constantly and I didnt touch anything

#

How the fuck this can append in a deterministic machine?

#

Bugs and corruption don't grow in the night like weed

floral sluice Aug 17, 2025, 9:52 AM

#

You can verify your game files and delete the leaf-loom gradle cache if you really want

floral sluice Aug 17, 2025, 9:53 AM

#

jagged scarab Where is it ? I don't use any debugger ?

run genSources and use the decompiled source when you view a game class like IsoPlayer, breakpoints in game classes will work if you run in debug

jagged scarab Aug 17, 2025, 9:55 AM

#

floral sluice You can verify your game files and delete the leaf-loom gradle cache if you real...

Okay I delete this folder

jagged scarab Aug 17, 2025, 9:55 AM

#

floral sluice run genSources and use the decompiled source when you view a game class like Iso...

Where is genSources

jagged scarab Aug 17, 2025, 9:56 AM

#

floral sluice run genSources and use the decompiled source when you view a game class like Iso...

How can I set a breakpoint in directly in the game file ? Why not at this point mod directly by editing the game files?

floral sluice Aug 17, 2025, 9:56 AM

#

jagged scarab Where is genSources

its a gradle task

#

I explained most of this ages ago

floral sluice Aug 17, 2025, 9:57 AM

#

jagged scarab How can I set a breakpoint in directly in the game file ? Why not at this point ...

there are many downsides to manually editing and replacing game class files

#

You're starting off the first introduction of leaf to you with a time consuming project idea, even more so than the already complex mods like NPCs and the like, so it's no wonder you're having issues. Most of the issues you're having aren't even with leaf but just writing code for the game

#

Barring that first issue that was some unexplained shit with NIO file channels

jagged scarab Aug 17, 2025, 10:00 AM

#

I just need to learn and get used to java/leaf/mixin modding

#

But this issue is not due to my code

jagged scarab Aug 17, 2025, 10:02 AM

#

floral sluice I explained most of this ages ago

gradlew.bat genSource

floral sluice Aug 17, 2025, 10:02 AM

#

I fucking knew it was going to be a bandaid fix

#

it's because of the option I added yesterday to force loom attribute files

#

the game's trying to parse those as animations and some other shit

jagged scarab Aug 17, 2025, 10:02 AM

#

floral sluice the game's trying to parse those as animations and some other shit

lol but its hashes

floral sluice Aug 17, 2025, 10:03 AM

#

im not quite sure what to do with this

#

because literally every other person on a windows machine (and even people on Linux**) didn't have this issue with extended file attributes

#

and even only 1 person in Fabric had this issue

jagged scarab Aug 17, 2025, 10:07 AM

#

gradlew.bat genSource failed because Intellij is open (?)

#

The error do not come from the sources......

#

It's the game and there is no clue to debug

#

apparently it works now after genSource wich failed

#

STACK TRACE
-----------------------------------------
function: updateTooltip -- file: ISScrollingListBox.lua line # 375 | Vanilla
function: prerender -- file: ISScrollingListBox.lua line # 520 | Vanilla

ERROR: General      f:73, t:1755425748504> ExceptionLogger.logException> Exception thrown
    java.lang.RuntimeException: attempted index: isMouseOver of non-table: com.example.UIViewport@3e67dec8 at KahluaThread.tableget(KahluaThread.java:1530).
    Stack trace:
        knot//se.krka.kahlua.vm.KahluaThread.tableget(KahluaThread.java:1530)
        knot//se.krka.kahlua.vm.KahluaThread.luaMainloop(KahluaThread.java:502)
        knot//se.krka.kahlua.vm.KahluaThread.call(KahluaThread.java:174)
        knot//se.krka.kahlua.vm.KahluaThread.pcall(KahluaThread.java:1826)
        knot//se.krka.kahlua.vm.KahluaThread.pcallvoid(KahluaThread.java:1668)
        knot//se.krka.kahlua.integration.LuaCaller.pcallvoid(LuaCaller.java:38)
        knot//zombie.ui.UIElement.render(UIElement.java:1990)

#

What should I add to my UIViewport class?
attempted index: isMouseOver of non-table: com.example.UIViewport@3e67dec8

floral sluice Aug 17, 2025, 10:40 AM

#

idk, see what sets isMouseOver

#

oh wait, doesnt that mean the table itself is null?

#

anyway, im not sure, I've never tried doing what youre doing before

jagged scarab Aug 17, 2025, 11:04 AM

#

floral sluice anyway, im not sure, I've never tried doing what youre doing before

I'm trying

    public int isMouseOver(int x, int y)
    {
      return 0;
    }```

floral sluice Aug 17, 2025, 11:05 AM

#

It's expecting a lua function I think?

#

If you create a java function but don't add it to the lua table, it won't exist from the lua context

#

Most people do UI in lua lol (including the game)

jagged scarab Aug 17, 2025, 11:14 AM

#

how to add to the LUA table? The patch does not qwork

#

I just forgot
this.visible = true;

valid nova Aug 17, 2025, 11:17 AM

#

Yea why are you doing Lua UI inside Java 😅

jagged scarab Aug 17, 2025, 11:17 AM

#

Now it display but I can't get rid of the errors

valid nova Aug 17, 2025, 11:17 AM

#

Combine both instead if you need to do Lua UI alongside custom Java stuff I think

#

Wait isMouveOver returns an int ?

jagged scarab Aug 17, 2025, 11:18 AM

#

idk

#

I tried a random add

valid nova Aug 17, 2025, 11:18 AM

#

But yea I really really don't think you should be doing an Lua UI stuff inside the Java

#

This is going to seriously limit modding capabilities of your mod, especially since you're forced to use Lua functions anyway, so simply define them in the Lua

#

For Java specific UI, you don't use the Lua UI anyway, so no reasons to do Lua UI inside the Java, unless you have specific limitations I suppose like not being able to expose your custom Java stuff to the Lua ?

floral sluice Aug 17, 2025, 11:27 AM

#

The point I want to get across to people is to use Java to enhance the experience of mod making in Lua mainly.

#

Obviously doing stuff in Java is a no brainer when it comes to performance, but for example with @dull stirrup and the NPC mod. They could add the NPC logic in Java, and then control certain things in Lua, to possibly allow for custom NPC implementations by other mods. Exposing NPC logic such as pathfinding and emotion state for example

#

It's not meant to be a "do everything in Java" unless you don't need to interact with the end user who writes Lua mods

#

Though it depends on what type of mod you are making

jagged scarab Aug 17, 2025, 11:32 AM

#

valid nova For Java specific UI, you don't use the Lua UI anyway, so no reasons to do Lua U...

So how can I display a viewport ?

valid nova Aug 17, 2025, 11:34 AM

#

Native Java stuff most likely due to how performance heavy it'll get

jagged scarab Aug 17, 2025, 11:43 AM

#

@Override
    public void render() {
        this.DrawTexture(this.viewport, 0, 0, 0);
    }

How can I call the super method render?

super.render();
```?

floral sluice Aug 17, 2025, 11:47 AM

#

I'm going to paste this here for you to read

#

To start modding Minecraft using Fabric, it's strongly recommended to know Java.
Minecraft, in its codebase, and mods, using Fabric API, use more advanced Java concepts like lambdas, generics and polymorphism.
If you don't know all of these concepts, you may have some difficulties modding.

Here are some online resources that will help learning Java
JetBrains Academy (free online course): https://www.jetbrains.com/academy/
Codecademy (free online course): https://www.codecademy.com/learn/learn-java
University of Helsinki (free online course): https://java-programming.mooc.fi/
Basic Java Tutorials: https://docs.oracle.com/javase/tutorial/
Introduction to Programming using Java by David J. Eck (free online textbook): http://math.hws.edu/javanotes/

#

This is from Fabric's helper discord bot, but it applies to leaf too

rare mural Aug 17, 2025, 11:50 AM

#

jagged scarab So how can I display a viewport ?

I already explained. Copy the code of UIElement. Delete everything related to lua. Inside the render, use SpriteRenderer to draw a square (your window)

#

(then add an instance of this new class to UIManager with AddUI)

jagged scarab Aug 17, 2025, 11:57 AM

#

rare mural (then add an instance of this new class to UIManager with AddUI)

    public void AddChild(zombie.ui.UIElement uIElement) {
        this.getControls().add(uIElement);
        uIElement.setParent(this); // <---- Error, UIElement, not UIViewport
    }

does my UIViewport class must extends UIElement?

rare mural Aug 17, 2025, 11:57 AM

#

you're totally confused

#

oh sorry my bad I misread the code

#

it's 7AM I've been up all night

#

you'd have to share more of the code

jagged scarab Aug 17, 2025, 11:59 AM

#

rare mural you'd have to share more of the code

I literally took the UIElement class code and renamed the class "UIViewport"

#

And adapt?

rare mural Aug 17, 2025, 12:00 PM

#

change the .setParent method first

#

actually

#

you can't really support that stuff

#

you'll just have to delete anything involving other uiElements because they wont really be usable with your custom windowing stuff

#

but that's OK because you don't really need child ui elements because you're just gonna draw textures to your square during render

#

yeah?

valid nova Aug 17, 2025, 12:01 PM

#

jagged scarab I literally took the UIElement class code and renamed the class "UIViewport"

Just derive the class

rare mural Aug 17, 2025, 12:01 PM

#

nah

jagged scarab Aug 17, 2025, 12:01 PM

#

rare mural yeah?

exactly

rare mural Aug 17, 2025, 12:02 PM

#

we're not trying to inherit all of UIElement's stuff, it uses lua tables and other stuff

#

he just wants the part of UIElement that makes it a valid UIElementInterface implementation

#

so it can be passed to UIManager.AddUI and he implements totally custom .render() method

#

(instead of the stuff UIElement does to render child nodes, etc)

valid nova Aug 17, 2025, 12:02 PM

#

Didn't follow the whole thing sorry

rare mural Aug 17, 2025, 12:02 PM

#

np catching ya up 🙂

#

@jagged scarab basically you need all the stuff from UIElement that you also see on UIElementInterface

#

at minimum

#

most everything else from UIElement can be tossed away

jagged scarab Aug 17, 2025, 12:03 PM

#

Ok so AddChild and his friend methods implementing UIElement goes to trash?

rare mural Aug 17, 2025, 12:04 PM

#

yeaha because that's related to UIElement's support for nesting child elements and stuff

jagged scarab Aug 17, 2025, 12:05 PM

#

    public void bringToTop() {
        UIManager.pushToTop(this);
        if (this.Parent != null) {
            this.Parent.addBringToTop(this);
        }
    }```
But these ?
`'pushToTop(zombie.ui.UIElementInterface)' is not public in 'zombie.ui.UIManager'. Cannot be accessed from outside package`

#

Okay I remove this....

public zombie.ui.UIElement Parent = null;

rare mural Aug 17, 2025, 12:07 PM

#

Is bringToTop in UIElementInterface?

jagged scarab Aug 17, 2025, 12:18 PM

#

no

rare mural Aug 17, 2025, 12:19 PM

#

https://tenor.com/view/yeet-naruto-sakura-yeetnaruto-gif-21167415

Tenor

jagged scarab Aug 17, 2025, 12:19 PM

#

What to do with the render function? It does not display anything

rare mural Aug 17, 2025, 12:19 PM

#

you'll need to implement it all yourself

#

probably with SpriteRendrerer

jagged scarab Aug 17, 2025, 12:19 PM

#

yes but

#

there is no window frame nothing

rare mural Aug 17, 2025, 12:20 PM

#

right, it's all on you

jagged scarab Aug 17, 2025, 12:20 PM

#

But I kept the original render function

#

So why it does not display

rare mural Aug 17, 2025, 12:20 PM

#

you're gonna delete what's inside

#

because it has no children etc

#

this is UIElement not UIWindow

jagged scarab Aug 17, 2025, 12:20 PM

#

public void render() {
        Object object;
        Object object2;
        if (!this.enabled) {
            return;
        }
        if (!this.isVisible().booleanValue()) {
            return;
        }
        if (this.getTable() != null && (object2 = UIManager.tableget(this.table, "prerender")) != null) {
            try {
                LuaManager.caller.pcallvoid(UIManager.getDefaultThread(), object2, (Object)this.table);
            }
            catch (Exception exception) {
                boolean bl = false;
            }
        }
        for (int i = 0; i < this.getControls().size(); ++i) {
            this.getControls().get(i).render();
        }
        if (this.getTable() != null && (object = UIManager.tableget(this.table, "render")) != null) {
            LuaManager.caller.pcallvoid(UIManager.getDefaultThread(), object, (Object)this.table);
        }
        if (Core.bDebug && DebugOptions.instance.UIRenderOutline.getValue()) {
            if (this.table != null && "ISScrollingListBox".equals(UIManager.tableget(this.table, "Type"))) {
                this.repaintStencilRect(0.0, 0.0, (int)this.width, (int)this.height);
            }
            Double d = -this.getXScroll().doubleValue();
            Double d2 = -this.getYScroll().doubleValue();
            double d3 = 1.0;
            if (this.isMouseOver().booleanValue()) {
                d3 = 0.0;
            }
            double d4 = this.maxDrawHeight == -1 ? (double)this.height : (double)this.maxDrawHeight;
            this.DrawTextureScaledColor(null, d, d2, 1.0, d4, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + 1.0, d2, (double)this.width - 2.0, 1.0, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + (double)this.width - 1.0, d2, 1.0, d4, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + 1.0, d2 + d4 - 1.0, (double)this.width - 2.0, 1.0, d3, 1.0, 1.0, 0.5);
        }
    }

rare mural Aug 17, 2025, 12:21 PM

#

you added an instance of this to UIManager.AddUI?

jagged scarab Aug 17, 2025, 12:21 PM

#

yes

rare mural Aug 17, 2025, 12:21 PM

#

well read the code

#

it doesn't render a window

jagged scarab Aug 17, 2025, 12:21 PM

#

    @Inject(method = "enter", at = @At("RETURN"), cancellable = false)
    private void enter(CallbackInfo ci) {
        LOGGER.println("The game starts!");
        UIViewport viewport;
        viewport = new UIViewport(300, 280);
        viewport.setTable(LuaManager.platform.newTable());
        UIManagerInvoker.invokeAddUI(viewport);
    }

jagged scarab Aug 17, 2025, 12:21 PM

#

rare mural well read the code

sure

rare mural Aug 17, 2025, 12:21 PM

#

you don't need to do setTable

#

you're deleting that stuff

jagged scarab Aug 17, 2025, 12:21 PM

#

ok

rare mural Aug 17, 2025, 12:22 PM

#

the last block in the render function

#

i think draws a square around the dimensions of the element

jagged scarab Aug 17, 2025, 12:22 PM

#

rare mural probably with SpriteRendrerer

Can you give me an example of SpriteRenderer?

rare mural Aug 17, 2025, 12:22 PM

#

just search for it

#

it and uses

#

you gotta up your search game

#

look at this part:

if (Core.bDebug && DebugOptions.instance.UIRenderOutline.getValue()) {
            if (this.table != null && "ISScrollingListBox".equals(UIManager.tableget(this.table, "Type"))) {
                this.repaintStencilRect(0.0, 0.0, (int)this.width, (int)this.height);
            }
            Double d = -this.getXScroll().doubleValue();
            Double d2 = -this.getYScroll().doubleValue();
            double d3 = 1.0;
            if (this.isMouseOver().booleanValue()) {
                d3 = 0.0;
            }
            double d4 = this.maxDrawHeight == -1 ? (double)this.height : (double)this.maxDrawHeight;
            this.DrawTextureScaledColor(null, d, d2, 1.0, d4, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + 1.0, d2, (double)this.width - 2.0, 1.0, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + (double)this.width - 1.0, d2, 1.0, d4, d3, 1.0, 1.0, 0.5);
            this.DrawTextureScaledColor(null, d + 1.0, d2 + d4 - 1.0, (double)this.width - 2.0, 1.0, d3, 1.0, 1.0, 0.5);
        }

#

if you remove the if

#

it should run all that code

#

remove the bit at the start about this.table and stuff

jagged scarab Aug 17, 2025, 12:23 PM

#

rare mural if you remove the if

indeed !

rare mural Aug 17, 2025, 12:23 PM

#

and everything else should result in a square being drawn

jagged scarab Aug 17, 2025, 12:23 PM

#

cool

rare mural Aug 17, 2025, 12:23 PM

#

did it work?

jagged scarab Aug 17, 2025, 12:24 PM

#

rare mural did it work?

It takes forever for each try lmoa

rare mural Aug 17, 2025, 12:24 PM

#

remove this part

            if (this.table != null && "ISScrollingListBox".equals(UIManager.tableget(this.table, "Type"))) {
                this.repaintStencilRect(0.0, 0.0, (int)this.width, (int)this.height);
            }

#

since we dont' (or wont) have this .table

jagged scarab Aug 17, 2025, 12:25 PM

#

I kept the call

#

?

rare mural Aug 17, 2025, 12:25 PM

#

eh it might work

#

probably not

#

just remove that part too

#

and restart

jagged scarab Aug 17, 2025, 12:26 PM

#

ok ok

#

I'm trying

#

(5 minutes later ....)

rare mural Aug 17, 2025, 12:26 PM

#

we need a mod that has an empty map

#

that's super tiny

#

load instantly

jagged scarab Aug 17, 2025, 12:27 PM

#

you mean to test faster ?

rare mural Aug 17, 2025, 12:27 PM

#

yeah

jagged scarab Aug 17, 2025, 12:32 PM

#

it works

rare mural Aug 17, 2025, 12:32 PM

#

🙂

jagged scarab Aug 17, 2025, 12:32 PM

#

a white 300*300 square appeared

#

just the frame

rare mural Aug 17, 2025, 12:32 PM

#

nice preserverence

#

@floral sluice ^

jagged scarab Aug 17, 2025, 12:34 PM

#

this.DrawTextureScaledColor(null, d, d2, 1.0, d4, d3, 1.0, 1.0, 0.5);

I must understand the drawing methods

rare mural Aug 17, 2025, 12:34 PM

#

it's a method on your class

floral sluice Aug 17, 2025, 12:35 PM

#

rare mural <@268199041542651904> ^

lol wut

rare mural Aug 17, 2025, 12:35 PM

#

he got the custom java ui rendering

floral sluice Aug 17, 2025, 12:36 PM

#

nice

rare mural Aug 17, 2025, 12:36 PM

#

    public void DrawTextureScaled(Texture tex, double _x, double _y, double _width, double _height, double alpha) {
        if (this.isVisible()) {
            double double0 = _x + this.getAbsoluteX();
            double double1 = _y + this.getAbsoluteY();
            SpriteRenderer.instance
                .renderi(tex, (int)(double0 + this.xScroll), (int)(double1 + this.yScroll), (int)_width, (int)_height, 1.0F, 1.0F, 1.0F, (float)alpha, null);
        }
    }

@jagged scarab

jagged scarab Aug 17, 2025, 12:37 PM

#

thank you

#

I need to implement a Texture viewport; (?)

rare mural Aug 17, 2025, 12:37 PM

#

i'm just showing you the method

#

look at SpriteRenderer to see what it supports

#

but yeah you'll probably need to render into a texture and then blitting that to your window

#

how making the texture will work

#

if you end up having to make the texture on the cpu it'll be very very slow

jagged scarab Aug 17, 2025, 12:38 PM

#

alpha must be 1 ?

#

i dont remember

rare mural Aug 17, 2025, 12:39 PM

#

alpha 1 just means fully opaque

#

not gonna lie this is probably not the way to go

#

you're probably gonna want to write a shader

#

but honestly you're getting to the point where you're on your own XD

jagged scarab Aug 17, 2025, 12:44 PM

#

viewport = new Texture(w, h, 1);
...
this.DrawTextureScaled(this.viewport, 0, 0, (double)this.width, (double)this.height, 1);

rare mural Aug 17, 2025, 12:44 PM

#

no

#

what are you trying to do???

#

the view port is already getting rendered

jagged scarab Aug 17, 2025, 12:44 PM

#

It's the inner viewport/canva

#

Texture is not the thing to do?

rare mural Aug 17, 2025, 12:45 PM

#

it wont be efficient to manipulate a texture and then blit it

#

you have to start thinking about how you actually want to render

#

like what do you want to see on screen

#

and the logic for drawing it

#

i don't mean texture vs shader i mean like what you visually wanna see and how will the viewport/rendering work

#

depending on that decision you chose cpu textures or gpu shaders

#

if you are making like a 2D tile-based game, then cpu textures are fine

#

if you're trying to make a low res raytracer, you might get away with CPU

#

anything more than that you're gonna want to use a shader

jagged scarab Aug 17, 2025, 12:47 PM

#

Okay so I replace Texture by shader

rare mural Aug 17, 2025, 12:47 PM

#

no idea how shaders are used

jagged scarab Aug 17, 2025, 12:47 PM

#

jagged scarab ```java viewport = new Texture(w, h, 1); ... this.DrawTextureScaled(this.viewpor...

Doesn't render

rare mural Aug 17, 2025, 12:47 PM

#

it wouldn't

#

the texture has no data

jagged scarab Aug 17, 2025, 12:50 PM

#

How to blit a Shader object

#

And how to manipulate it?

#

m_floorRenderShader = new Shader("floorTile");

in IsoCell.java interesting

#

Can I use IndieGL.StartShader withoud doing a new Mixin class?

#

Does nothing

#

How to fill up a Shader ?

#

I must create a Texture to edit the Shader? How to access it fast?

#

private Texture m_tex;

Shaders hold Texture. Why I should use a Shader instead of Texture so?

#

Can I access the SpriteRenderer without Mixin class?

floral sluice Aug 17, 2025, 1:31 PM

#

reading opengl docs will help you here

jagged scarab Aug 17, 2025, 1:38 PM

#

SpriteRenderer.instance.render(this.viewport2,
                0,//d13 += this.getAbsoluteX() + d,
                0,//d14 += this.getAbsoluteY() + d2,
                this.width,//d15 += this.getAbsoluteX() + d,
                this.height,//d16 += this.getAbsoluteY() + d2,
                this.width,//d17 += this.getAbsoluteX() + d,
                this.height,//d18 += this.getAbsoluteY() + d2,
                this.width,//d19 += this.getAbsoluteX() + d,
                this.height,//d20 += this.getAbsoluteY() + d2,
                0,//(float)d4,
                0,//(float)d5,
                0,//(float)d6,
                0,//(float)d7,
                0,//(float)d4,
                0,//(float)d5,
                0,//(float)d6,
                0,//(float)d7,
                0,//(float)d4,
                0,//(float)d5,
                0,//(float)d6,
                0,//(float)d7,
                0,//(float)d4,
                0,//(float)d5,
                0,//(float)d6,
                0,//(float)d7,
                null);

Pain

#

Also not working

#

What is the use of all thoses parameters?

#

If your function have +8 argument it's a design issue...

floral sluice Aug 17, 2025, 2:00 PM

#

you'll find that often in the code

jagged scarab Aug 17, 2025, 2:03 PM

#

How do you edit Textures ?

#

It doesn't display anything

jagged scarab Aug 17, 2025, 2:39 PM

#

I'm trying to

viewport2.setData(byteBuffer); // <---- GAME CRASH

And in render

this.DrawTexture(this.viewport2, 0.0, 0.0, 1);

But the game crash

#

viewport2 = new Texture(w, h, "3dviewport", 0);
        viewport2.setWidth(w);
        viewport2.setHeight(h);
        ByteBuffer byteBuffer = ByteBuffer.allocate(4 * (w * h));
        for (int i = 0; i < h; i++) {
            for (int j = 0; j < w; j++) {
                int index = (i * w + j) * 4;
                if (i > h / 2) {
                    byteBuffer.put(index, (byte)255);
                    byteBuffer.put(index + 1, (byte)0);
                    byteBuffer.put(index + 2, (byte)0);
                    byteBuffer.put(index + 3, (byte)255);
                }
                else
                {
                    byteBuffer.put(index, (byte)255);
                    byteBuffer.put(index + 1, (byte)255);
                    byteBuffer.put(index + 2, (byte)255);
                    byteBuffer.put(index + 3, (byte)255);
                }
            }
        }

#

Assuming it's RGBA ?

rare mural Aug 17, 2025, 10:20 PM

#

jagged scarab ```java viewport2 = new Texture(w, h, "3dviewport", 0); viewport2.setWid...

Any luck? Guess not

jagged scarab Aug 18, 2025, 6:05 AM

#

rare mural Any luck? Guess not

No the game crash

jagged scarab Aug 18, 2025, 6:32 AM

#

        ByteBuffer byteBuffer = MemoryUtil.memAlloc((int)(w * h * 4));
        for (int i = 0; i < w * h * 4; ++i) {
            byteBuffer.put((byte)-1);
        }
        byteBuffer.flip();
        GL11.glTexImage2D((int)3553, (int)0, (int)6408, w, h, (int)0, (int)6408, (int)5121, (ByteBuffer)byteBuffer);
        MemoryUtil.memFree((ByteBuffer)byteBuffer);

I was almost right. But the game use flip and GL11...

#

Same code still crashing 🤡

#

This line crash

GL11.glTexImage2D((int)3553, (int)0, (int)6408, w, h, (int)0, (int)6408, (int)5121, (ByteBuffer)byteBuffer);

#

ChatGPT says OpenGL must be initialized but the game already did (?)

#

        GLFW.glfwInit(); // Do not prevent the crash
        //GL.createCapabilities(); // Black screen after loading. Produce Exception

How the fuck I'm I supposed to use OpenGL as the game does?

rare mural Aug 18, 2025, 7:05 AM

#

@verbal panther has been doing shader stuff, maybe he can help

jagged scarab Aug 18, 2025, 7:12 AM

#

ERROR: General      f:0, t:1755501083558> ExceptionLogger.logException> Exception thrown
    java.lang.IllegalStateException: There is no OpenGL context current in the current thread. at GL.createCapabilities(GL.java:429).
    Stack trace:
        knot//org.lwjgl.opengl.GL.createCapabilities(GL.java:429)
        knot//org.lwjgl.opengl.GL.createCapabilities(GL.java:358)
        knot//org.lwjgl.opengl.GL.createCapabilities(GL.java:342)
        knot//com.example.UIViewport.<init>(UIViewport.java:130)
        knot//zombie.gameStates.IngameState.handler$zza000$modid$enter(IngameState.java:1928)
        knot//zombie.gameStates.IngameState.enter(IngameState.java:846)
        knot//zombie.gameStates.GameStateMachine.update(GameStateMachine.java:133)
        knot//zombie.GameWindow.logic(GameWindow.java:382)
        knot//zombie.GameWindow.frameStep(GameWindow.java:916)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

#

No GL context

#

That's probably why

#

The game never call glfwMakeContextCurrent

#

Where the fuck it init OpenglContext

#

It uses

Display.getWindow()

But the Display class is not in the project or Java native

#

Okay intellij imports it

#

long window = Display.getWindow();
GLFW.glfwMakeContextCurrent(window); // <------- Exception

LOG  : General      f:0, t:1755502081932> [LWJGL] GLFW_PLATFORM_ERROR error
    Description : WGL: Failed to make context current: La ressource demandée est en cours d’utilisation. 
    Stacktrace  :
        knot//org.lwjgl.glfw.GLFW.glfwMakeContextCurrent(GLFW.java:5186)
        knot//com.example.UIViewport.<init>(UIViewport.java:133)
        knot//zombie.gameStates.IngameState.handler$zza000$modid$enter(IngameState.java:1928)
        knot//zombie.gameStates.IngameState.enter(IngameState.java:846)
        knot//zombie.gameStates.GameStateMachine.update(GameStateMachine.java:133)
        knot//zombie.GameWindow.logic(GameWindow.java:382)
        knot//zombie.GameWindow.frameStep(GameWindow.java:916)
        knot//zombie.GameWindow.mainThreadStep(GameWindow.java:642)
        knot//zombie.MainThread.mainLoop(MainThread.java:76)
        java.base/java.lang.Thread.run(Thread.java:840)

OpenGL already initialized

#

@Jab can you help me please?

#

System.out.println("CONTEXT = " + GLFW.glfwGetCurrentContext());

Prints

CONTEXT = 0

But still, aside from the fact that there is no context,

WGL: Failed to make context current: The requested resource is currently in use.

fresh nexus Aug 18, 2025, 1:27 PM

#

How much software do I need to install to get working with this?

#

Iv no idea about compiling/decompiling java..

floral sluice Aug 18, 2025, 1:37 PM

#

it is recommended to have at least a basic understanding of Java and mixin to use

rare mural Aug 18, 2025, 1:37 PM

#

Black Moons has a good head and is motivated

#

So I think we can help him out a little more. I'm sure he can use the internet to learn Java and Mixin as he goes but we can help him over hurdles

#

To get started, you should follow the readme of the example mod: https://github.com/aoqia194/leaf-example-mod

#

And I think you have to independently use the leaf-installer to install the leaf-loader into your Zomboid installation: https://github.com/aoqia194/leaf-installer

#

Maybe the example mod configuration does that automagically, I can't remember. @floral sluice

floral sluice Aug 18, 2025, 1:41 PM

#

does what

rare mural Aug 18, 2025, 1:41 PM

#

@floral sluice does the example mod configuration automatically install leaf-loader?

#

or do you need to do that explicitly yourself

floral sluice Aug 18, 2025, 1:41 PM

#

yes it does, without it you wouldn't be able to load the game

rare mural Aug 18, 2025, 1:42 PM

#

I think the order I did things in was:

used steamcmd to install an extra copy of zomboid 42 in a custom location
use leaf-installer to install leaf-loader into that zomboid
set the environment variable to tell the example mod config where my zomboid was
clone the example mod, edit that one configuration file to tell it to use the version of something for zomboid 42
then gradle sync

if all is well at that point you're probably good to go

rare mural Aug 18, 2025, 1:43 PM

#

floral sluice yes it does, without it you wouldn't be able to load the game

@fresh nexus but I guess you can skip the leaf-installer step

#

@fresh nexus also make sure you use IntelliJ IDEA

#

will make everything much smoother

floral sluice Aug 18, 2025, 1:46 PM

#

read the pinned messages in this thread

#

theres not much but its somethign

rare mural Aug 18, 2025, 1:47 PM

#

Ah yes, make sure to install the minecraft idea plugin, it makes using Mixin a lot nicer

#

Eventually I can show you how to get hotswapping working, so you don't have to restart the game after changing your code

fresh nexus Aug 18, 2025, 1:50 PM

#

Soo few questions before I get started...

rare mural Aug 18, 2025, 1:50 PM

#

i bet

fresh nexus Aug 18, 2025, 1:50 PM

#

Will people need to 'manually install' my mod? (or just 'leaf' or whatever?)

rare mural Aug 18, 2025, 1:50 PM

#

People will indeed need to install leaf

#

The goal is that leaf becomes so valuable (and easy to use, make java mods in) that it's just a thing you do

#

the leaf installer is basic now

fresh nexus Aug 18, 2025, 1:51 PM

#

How likely is my mod to break next B42 update?

rare mural Aug 18, 2025, 1:51 PM

#

but it can be made nicer

floral sluice Aug 18, 2025, 1:51 PM

#

fresh nexus How likely is my mod to break next B42 update?

depends on how much they change

#

it's all basically dependent on TIS

rare mural Aug 18, 2025, 1:51 PM

#

exactly

#

same with the lua api

#

it's no different

fresh nexus Aug 18, 2025, 1:52 PM

#

Ok, but its not guarenteed to break because of some annoying obfusicated api functions changing every single version right?

rare mural Aug 18, 2025, 1:52 PM

#

nope

fresh nexus Aug 18, 2025, 1:52 PM

#

(ala minecraft IIRC?)

floral sluice Aug 18, 2025, 1:52 PM

#

Though Java is more likely to break compared to Lua purely because they consider Lua when changing method names but not really as much for Java. But it's not like a given statistic

floral sluice Aug 18, 2025, 1:53 PM

#

fresh nexus (ala minecraft IIRC?)

PZ isn't obfuscated

rare mural Aug 18, 2025, 1:53 PM

#

Java is like an internal implementation detail, yeah

fresh nexus Aug 18, 2025, 1:53 PM

#

floral sluice Though Java is more likely to break compared to Lua purely because they consider...

Yeaaa mainly im just trying to disable the godawful vehicle engine code and replace it with LUA

#

Iv already got an LUA functional 'torque boost'...

floral sluice Aug 18, 2025, 1:53 PM

#

Also Fabric has intermediary mapping layer that gets rid of most of the hassle with obfuscation. Leaf has that stripped out because the game isn't obfuscated, so there's no need for it

rare mural Aug 18, 2025, 1:53 PM

#

Then again, lua is their scripting language, so you imagine that as the game matures, the Java will change less, and the lua more

fresh nexus Aug 18, 2025, 1:54 PM

#

floral sluice PZ isn't obfuscated

Good good.

rare mural Aug 18, 2025, 1:54 PM

#

fresh nexus Yeaaa mainly im just trying to disable the godawful vehicle engine code and repl...

Much more attainable goal than the other guy in here 😄

#

doc is trying to write a custom 3D renderer for the game lol

fresh nexus Aug 18, 2025, 1:56 PM

#

And then maybe I'll reproduce my summer car in PZ.

rare mural Aug 18, 2025, 1:56 PM

#

If you get a handle on Leaf modding you'll be able to do a lot

#

And by using it you can help us (well aoqia) figure out how to make it better

fresh nexus Aug 18, 2025, 1:57 PM

#

I mean I can already do most of it in LUA

#

(Sure would be nice if horsepower worked in forward and not just reverse..)

rare mural Aug 18, 2025, 1:58 PM

#

@floral sluice It'd be kinda crazy if Leaf exposed a lua API that used Mixin under the hood, allowing Lua modders to effectively inject lua closures in the same places, etc that Mixin allows for

fresh nexus Aug 18, 2025, 1:58 PM

#

Still kinda sad that for as bad as PZ's vehicle code is, im pretty sure the transmission in snowrunner is even worse 😛

rare mural Aug 18, 2025, 1:59 PM

#

though I guess it's not a realistic idea because of how Mixin is annotation based, etc. It's not an imperative patching API.

#

I guess the other way is to just hook everything with Mixin, then build an API ontop of all those fixed extension points.

#

Not as flexible but, whatyagondo

floral sluice Aug 18, 2025, 2:20 PM

#

rare mural <@268199041542651904> It'd be kinda crazy if Leaf exposed a lua API that used Mi...

true. but im not sure how possible that is for mixin

fresh nexus Aug 18, 2025, 2:20 PM

#

so, since PZ is not obfusicated, will I be able to see a rather clean version of the java source?

rare mural Aug 18, 2025, 2:20 PM

#

floral sluice true. but im not sure how possible that is for mixin

yeah i was reading more about mixin it's definitely not possible

#

we'd have to make our own mixin-like thing using ASM (bytecode library) directly

floral sluice Aug 18, 2025, 2:21 PM

#

As far as I know about mixin, it's happens at a certain stage where mixins get put in-place into classes and then once the mixin stage is done then it doesn't do any more class modifications. you could maybe expose like bytecode patching but something like this is best suited for java mod

floral sluice Aug 18, 2025, 2:21 PM

#

fresh nexus so, since PZ is not obfusicated, will I be able to see a rather clean version of...

yes

fresh nexus Aug 18, 2025, 2:22 PM

#

And can I just copy that source into my own mod and start making changes, and override the java function with my own?

rare mural Aug 18, 2025, 2:22 PM

#

no

floral sluice Aug 18, 2025, 2:22 PM

#

Class, method and field names are kept original human-readable names. Locals don't get names stored in compiled Java code, so they will be generic like string0 or int4

rare mural Aug 18, 2025, 2:22 PM

#

well, kinda, but it's more involved than just copy pasting

#

I'm working on a tool to help us share local-variable renames so that it can improve over time

floral sluice Aug 18, 2025, 2:23 PM

#

fresh nexus And can I just copy that source into my own mod and start making changes, and ov...

Leaf isn't like normal Java patching where you copy paste a whole class and modify it where necessary. You use mixin to modify specific parts of the code with intention, like a surgeon

rare mural Aug 18, 2025, 2:23 PM

#

but it's already quite easy to understand

#

a surgeon yeah lol

fresh nexus Aug 18, 2025, 2:23 PM

#

floral sluice Leaf isn't like normal Java patching where you copy paste a whole class and modi...

Ok but Im going to end up just throwing out half the vehicle movement code...

rare mural Aug 18, 2025, 2:23 PM

#

That's fine, that's something Mixin is good at

floral sluice Aug 18, 2025, 2:24 PM

#

are you doing like an entire vehicle overhaul thing?

rare mural Aug 18, 2025, 2:24 PM

#

You inject at a point and completely take over a method, ignoring the original code

fresh nexus Aug 18, 2025, 2:24 PM

#

floral sluice are you doing like an entire vehicle overhaul thing?

Yes.

#

And by that I mean Iv already done one in LUA, but the fact I can't edit the engine noise annoys me.

floral sluice Aug 18, 2025, 2:24 PM

#

you would basically redirect the original methods to your custom implementation

rare mural Aug 18, 2025, 2:24 PM

#

yup, and you can cut it as high-level or low-level as you want

#

with Mixin you can literally hook anywhere, even in the middle of methods. O_O

fresh nexus Aug 18, 2025, 2:25 PM

#

Cool cool... So.. steamcmd for another install of PZ...

rare mural Aug 18, 2025, 2:25 PM

#

that's what I did to just keep it clean

fresh nexus Aug 18, 2025, 2:26 PM

#

Oh?

#

I assume I can just steam validate to restore PZ if needed?

rare mural Aug 18, 2025, 2:27 PM

#

eh just use steamcmd it's one command

#

then you don't have to worry about anything

fresh nexus Aug 18, 2025, 2:27 PM

#

ok but what command is it?

rare mural Aug 18, 2025, 2:27 PM

#

🙄

#

chatgpt what is the steamcmd command to install pz

#

hehe

fresh nexus Aug 18, 2025, 2:29 PM

#

I don't chatgpt.

rare mural Aug 18, 2025, 2:29 PM

#

¯_(ツ)_/¯

#

a search engine that you can ask clarifying questions of

#

pretty op

verbal panther Aug 18, 2025, 2:36 PM

#

jagged scarab ``` ERROR: General f:0, t:1755501083558> ExceptionLogger.logException> Exce...

You're not executing code in the render context.

rare mural Aug 18, 2025, 2:37 PM

#

@verbal panther spill the beans

verbal panther Aug 18, 2025, 2:37 PM

#

You're not going to be doing any render code execution outside the render context / render thread.

#

I'd go learn how to write a basic LWJGL application / demo game before trying to modify something as built / complicated as PZ's render thread / context.

#

In my case I've done several, specifically with LWJGL however it looks like this person hasn't or hasn't messed with LWJGL much.

floral sluice Aug 18, 2025, 2:39 PM

#

fresh nexus Cool cool... So.. steamcmd for another install of PZ...

why would you need to?

#

Leaf doesn't modify any game files, even in dev

fresh nexus Aug 18, 2025, 2:39 PM

#

I dunno, idlework said to.

rare mural Aug 18, 2025, 2:40 PM

#

It's what I did before I knew about run/

floral sluice Aug 18, 2025, 2:40 PM

#

You can have a folder of different game versions, that what I have, but only because I need to test frequently between stable and unstable

fresh nexus Aug 18, 2025, 2:40 PM

#

im just gonna run unstable..

rare mural Aug 18, 2025, 2:41 PM

#

using steamcmd to get games is easy so i figured why not ¯_(ツ)_/¯

fresh nexus Aug 18, 2025, 2:41 PM

#

...

floral sluice Aug 18, 2025, 2:41 PM

#

that's what the steam client is for?

fresh nexus Aug 18, 2025, 2:41 PM

#

"its so easy, I can't even tell you how to do it!" isn't instilling confidence.

rare mural Aug 18, 2025, 2:42 PM

#

dude you haven't found it yet??

floral sluice Aug 18, 2025, 2:42 PM

#

fresh nexus "its so easy, I can't even tell you how to do it!" isn't instilling confidence.

to be fair, there are docs available, just have to search for it on google

#

I believe there was a valve wiki page on it or something

rare mural Aug 18, 2025, 2:42 PM

#

steamcmd.exe

#

login anonymous

#

force_install_dir ./wherever_you_want

#

app_update 380870 validate

floral sluice Aug 18, 2025, 2:42 PM

#

but I don't even know why you would use steamcmd over steam client

rare mural Aug 18, 2025, 2:42 PM

#

there ya go

#

because it's easier to just put a game at a specific place

floral sluice Aug 18, 2025, 2:43 PM

#

steamcmd is doing the exact same thing as installing your game does. and if you care about storage space, it'll make for 3 versions of the game

rare mural Aug 18, 2025, 2:43 PM

#

app_update 380870 -beta unstable validate

#

if you want 42

floral sluice Aug 18, 2025, 2:43 PM

#

rare mural because it's easier to just put a game at a specific place

sure. it does depend on what you want

fresh nexus Aug 18, 2025, 2:44 PM

#

floral sluice but I don't even know why you would use steamcmd over steam client

I mean, I have no clue either, im just trying to make the worlds simplest java mod for PZ.

rare mural Aug 18, 2025, 2:44 PM

#

hehe

floral sluice Aug 18, 2025, 2:44 PM

#

but for 99% of people the plug and play solution of auto detecting the game is good

rare mural Aug 18, 2025, 2:44 PM

#

i'm an old man obssesed with automation

#

too old to change 😭

fresh nexus Aug 18, 2025, 2:44 PM

#

How is that automation vs clicking INSTALL?

rare mural Aug 18, 2025, 2:45 PM

#

i already had pz installed, that wasn't the issue

fresh nexus Aug 18, 2025, 2:45 PM

#

thats manualmation.

rare mural Aug 18, 2025, 2:45 PM

#

it's "this thing doesn't touch anything else so i don't have to think about that class of problems"

floral sluice Aug 18, 2025, 2:45 PM

#

fresh nexus How is that automation vs clicking *INSTALL*?

its good if you want multiple versions to test mod against

fresh nexus Aug 18, 2025, 2:46 PM

#

Yea I just want 42, the rest of you PZ players are outta luck. Nothing can fix the mess that is vehicles in PZ41 MP

rare mural Aug 18, 2025, 2:46 PM

#

lol

floral sluice Aug 18, 2025, 2:46 PM

#

although most games are just 1 verify game files away from fixing random issues, like render engine guy who had pz's steam app id file set to a completely different game somehow

rare mural Aug 18, 2025, 2:46 PM

#

probably asked gpt for it and it hallucinated

#

lol

fresh nexus Aug 18, 2025, 2:49 PM

#

jagged scarab This line crash ```java GL11.glTexImage2D((int)3553, (int)0, (int)6408, w, h, (i...

I literally can't decypher any of that because your using nothing but magic numbers instead of opengl constants -_-;

#

https://registry.khronos.org/OpenGL-Refpages/gl4/html/glTexImage2D.xhtml Please use constants...

jagged scarab Aug 18, 2025, 2:51 PM

#

fresh nexus I literally can't decypher any of that because your using nothing but magic num...

Yes I's constants from the decompiled source

rare mural Aug 18, 2025, 2:51 PM

#

@verbal panther got anymore you can say?

verbal panther Aug 18, 2025, 2:51 PM

#

rare mural <@183299843240886272> got anymore you can say?

About?

fresh nexus Aug 18, 2025, 2:51 PM

#

floral sluice although most games are just 1 verify game files away from fixing random issues,...

So what are the actual steps to develope with leaf..

#

assuming I have.. 0 software for java in particular.

verbal panther Aug 18, 2025, 2:51 PM

#

The code isn't being executed inside of the render context.

#

It's that simple.

rare mural Aug 18, 2025, 2:51 PM

#

GL programming in PZ, maybe it'd be cool if you could show a minimal example that draws a square viewport with a shader that just draws a triangle

verbal panther Aug 18, 2025, 2:52 PM

#

rare mural GL programming in PZ, maybe it'd be cool if you could show a minimal example tha...

You mean my own stuff?

jagged scarab Aug 18, 2025, 2:52 PM

#

verbal panther The code isn't being executed inside of the render context.

Yes how cqn I draw a square? in the rneder context

rare mural Aug 18, 2025, 2:52 PM

#

verbal panther You mean my own stuff?

I just mean a minimal thing to help people around here get headed in the right direction

verbal panther Aug 18, 2025, 2:52 PM

#

You won't be able to draw the world in the world layer without modifying the Java code.

fresh nexus Aug 18, 2025, 2:52 PM

#

jagged scarab Yes I's constants from the decompiled source

Ouch.

rare mural Aug 18, 2025, 2:53 PM

#

We can look at it, and go research the related info

rare mural Aug 18, 2025, 2:53 PM

#

verbal panther You won't be able to draw the world in the world layer without modifying the Jav...

You're in #1379702489250529280

#

hehe

verbal panther Aug 18, 2025, 2:53 PM

#

It'd take a bit of time to do any of that and I have active projects + a commission to work on atm so I couldn't be helpful.

jagged scarab Aug 18, 2025, 2:53 PM

#

Sorry for not responding Discord didn't load your messages

rare mural Aug 18, 2025, 2:53 PM

#

While doc's eventual goals are pretty grand, I think we're happy to just do baby's first opengl triangle in pz for now

#

well, alright no worries man

#

thanks for the context tip at least hehe

verbal panther Aug 18, 2025, 2:54 PM

#

Sure. I can tell you what's wrong but a guide? Nah.

#

If PZ was my actual job then hell yeah

rare mural Aug 18, 2025, 2:54 PM

#

just a little code example is what i had in mind

#

if your gui stuff open source / on github @verbal panther ?

jagged scarab Aug 18, 2025, 2:55 PM

#

verbal panther Sure. I can tell you what's wrong but a guide? Nah.

Like where is the render context thread ?

rare mural Aug 18, 2025, 2:55 PM

#

Maybe we could look at that stuff

verbal panther Aug 18, 2025, 2:55 PM

#

rare mural if your gui stuff open source / on github <@183299843240886272> ?

Everything is.

rare mural Aug 18, 2025, 2:55 PM

#

a man of the lord

#

🙏

verbal panther Aug 18, 2025, 2:55 PM

#

Just not some Java but yeah all Lua and some Java is.

#

https://github.com/asledgehammer

GitHub

asledgehammer

asledgehammer has 55 repositories available. Follow their code on GitHub.

rare mural Aug 18, 2025, 2:56 PM

#

https://tenor.com/view/hammer-band-uk-faegil-gif-26307255

Tenor

valid nova Aug 18, 2025, 2:58 PM

#

rare mural app_update 380870 validate

Didn't think about using steamcmd to install two versions of the game. Tho the app ID you use here is not PZ. Unless you're not talking about pz ? I haven't read the full thing

rare mural Aug 18, 2025, 2:58 PM

#

(i asked gpt for the commands so i'm not surprised the id is wrong lol)

valid nova Aug 18, 2025, 2:58 PM

#

Bruh

fresh nexus Aug 18, 2025, 2:58 PM

#

Anndd this is why I don't chatgpt.

#

shakes head

rare mural Aug 18, 2025, 2:58 PM

#

i even said it above

verbal panther Aug 18, 2025, 2:58 PM

#

If you use AI then I can't help you. It'll break.

valid nova Aug 18, 2025, 2:59 PM

#

But I'll look into it and add it to the steamcmd wiki page sibce that can be used to install both B41 and B42

verbal panther Aug 18, 2025, 2:59 PM

#

But good luck.

fresh nexus Aug 18, 2025, 2:59 PM

#

verbal panther If you use AI then I can't help you. It'll break.

Literally why... Lesson learned, don't ask idlework for help lol.

rare mural Aug 18, 2025, 2:59 PM

#

....

valid nova Aug 18, 2025, 2:59 PM

#

rare mural i even said it above

Yea I didn't read the full chat I was looking and saw you discussed steacmd so I got curious since I played a bit with it and made a wiki page about it

fresh nexus Aug 18, 2025, 3:00 PM

#

will get incorrect AI awnsers with no notice that they are AI generated or incorrect.

rare mural Aug 18, 2025, 3:00 PM

#

I literally joked about it!

valid nova Aug 18, 2025, 3:00 PM

#

I don't think idle here is stupid here and doesn't know about the risks of ai

rare mural Aug 18, 2025, 3:00 PM

#

I've been doing software engineering for 25 years professionally, but I don't need to give you help that's fine

#

Having run those steamcmds many times, I knew they were right.

fresh nexus Aug 18, 2025, 3:02 PM

#

except for the app ID, that would have caused me to download some random game...

#

illegally..

rare mural Aug 18, 2025, 3:02 PM

#

Getting the ID wrong was inevitable but an easy thing to look up

#

lol you can't just steamcmd any game

#

to that point, you need to login as yourself not anonymous which is only gonna work for dedicated servers and stuff

jagged scarab Aug 18, 2025, 3:05 PM

#

I cannot

viewport2.setData(byteBuffer);

Of my Texture

#

It crashes

fresh nexus Aug 18, 2025, 3:06 PM

#

So yea, if anyone has a non AI generated guide on how to use leaf (getting that example mod to compile or whatever), without extra steps that I don't need to do if im not trying to develope for multiple versions of PZ, im interested.

#

Else i'll just go back to my LUA modding.

jagged scarab Aug 18, 2025, 3:11 PM

#

@verbal panther Why Texture::getWhite method have a GL context and not my function?

#

There is literally no keyword referring to the cretation or fetching of a GL context

floral sluice Aug 18, 2025, 3:13 PM

#

valid nova Didn't think about using steamcmd to install two versions of the game. Tho the a...

380780 (0..4) is PZ dedicated server

jagged scarab Aug 18, 2025, 3:13 PM

#

But still the game accepts without crashing the call GL11.glTexImage2D

floral sluice Aug 18, 2025, 3:13 PM

#

0 is shared resources depot, 1 2 3 are linux, mac, windows

#

same with 108601 (1..4) with PZ game client

floral sluice Aug 18, 2025, 3:14 PM

#

jagged scarab <@183299843240886272> Why `Texture::getWhite` method have a GL context and not m...

why dont you hit F12 or CTRL+CLICK it and see where it gets used, maybe you will find th render thread there

jagged scarab Aug 18, 2025, 3:14 PM

#

Why the fuck drawing a square is so complicated?

floral sluice Aug 18, 2025, 3:15 PM

#

did warn you 😄

jagged scarab Aug 18, 2025, 3:16 PM

#

floral sluice why dont you hit F12 or CTRL+CLICK it and see where it gets used, maybe you will...

There is no declaration

#

Only a Texture class

#

With no getter or setters

#

Well there is setData method for Texture

#

But it crashes

#

And when you read you see a bunch of stupid variables but not the actual data is absent

valid nova Aug 18, 2025, 3:17 PM

#

fresh nexus illegally..

Ilegally bruuuuh

#

If it was this easy

jagged scarab Aug 18, 2025, 3:18 PM

#

Where this stupid game stores pixels ? If not in Texture?

fresh nexus Aug 18, 2025, 3:18 PM

#

shrugs

valid nova Aug 18, 2025, 3:19 PM

#

jagged scarab Where this stupid game stores pixels ? If not in Texture?

Storing pixels ???

rare mural Aug 18, 2025, 3:19 PM

#

He's trying to figure out how to manipulate PZ Textures

jagged scarab Aug 18, 2025, 3:21 PM

#

    public static final HashSet<String> nullTextures = new HashSet();// Unrealated
    private static final long serialVersionUID = 7472363451408935314L;// Unrealated
    private static final ObjectRenderEffects objRen = ObjectRenderEffects.alloc();// Maybe ?
    public static int BindCount = 0;// Unrealated
    public static boolean bDoingQuad = false;// Unrealated
    public static float lr;// Unrealated
    public static float lg;// Unrealated
    public static float lb;// Unrealated
    public static float la;// Unrealated
    public static int lastlastTextureID;// Unrealated
    public static int totalTextureID;// Unrealated
    private static Texture white;// Unrealated
    private static Texture errorTexture;// Unrealated
    private static Texture mipmap;// Unrealated
    public static int lastTextureID;// Unrealated
    public static boolean WarnFailFindTexture;// Unrealated
    private static final HashMap<String, Texture> textures;// Unrealated

#

    private static final HashMap<String, Texture> s_sharedTextureTable;// Unrealated
    private static final HashMap<Long, Texture> steamAvatarMap;// Unrealated
    public boolean flip = false;// Unrealated
    public float offsetX = 0.0f;// Unrealated
    public float offsetY = 0.0f;// Unrealated
    public boolean bindAlways = false;// Unrealated
    public float xEnd = 1.0f;// Unrealated
    public float yEnd = 1.0f;// Unrealated
    public float xStart = 0.0f;// Unrealated
    public float yStart = 0.0f;// Unrealated
    protected TextureID dataid;// Unrealated
    protected Mask mask;// Unrealated
    protected String name;// Unrealated
    protected boolean solid;// Unrealated
    protected int width;// Unrealated
    protected int height;// Unrealated
    protected int heightOrig;// Unrealated
    protected int widthOrig;// Unrealated
    private int realWidth = 0;// Unrealated
    private int realHeight = 0;// Unrealated
    private boolean destroyed = false;// Unrealated
    private Texture splitIconTex;// Unrealated
    private int splitX = -1;// Unrealated
    private int splitY;// Unrealated
    private int splitW;// Unrealated
    private int splitH;// Unrealated
    protected FileSystem.SubTexture subTexture;// Unrealated
    public TextureAssetParams assetParams;// Unrealated
    private static final ThreadLocal<PNGSize> pngSize;// Unrealated
    public static final AssetType ASSET_TYPE;// Unrealated

The Texture class variables

#

Full of random data

#

Do you see any 32bit element array? Do you see any pixel value?

fresh nexus Aug 18, 2025, 3:24 PM

#

Testures in openGl are just a 32bit int that references some internal thing for opengl...

#

(at least, in C++)

jagged scarab Aug 18, 2025, 3:25 PM

#

fresh nexus Testures in openGl are just a 32bit int that references some internal thing for ...

Sure. But why Texture do not hold the int array so ?

#

Oh ObjectRenderEffects do not hold anything

#

That means Texture is just a empty shell

floral sluice Aug 18, 2025, 3:27 PM

#

floral sluice 380780 (0..4) is PZ dedicated server

actually no im wrong, im pretty sure it's 380870+

#

eh one number off

floral sluice Aug 18, 2025, 3:27 PM

#

jagged scarab That means Texture is just a empty shell

you sure texture isn't just a struct-style data object to store opengl outputs or something

rare mural Aug 18, 2025, 3:27 PM

#

guards!

#

take him to jail!

jagged scarab Aug 18, 2025, 3:28 PM

#

floral sluice you sure texture isn't just a struct-style data object to store opengl outputs o...

No because you see it at low level rendering

#

But when you dig you find nothing

#

You'll find maybe OpenGL calls that are not possible to do anywhere outside because this is not the "Rendering context" @verbal panther

floral sluice Aug 18, 2025, 3:30 PM

#

jagged scarab You'll find maybe OpenGL calls that are not possible to do anywhere outside beca...

are you actually in the render thread or have access to the render context?

jagged scarab Aug 18, 2025, 3:32 PM

#

floral sluice are you actually in the render thread or have access to the render context?

When I call getRenderContext I get zero. So I'm assuming I'm not in the render thread.

I don't know how to access the render context (the funny part is: the Texture class do not "access the render context" it just magically works 🤡 )

#

I like magik tricks too because I'm lazy

#

But this magik is too powerful I'm just a developer, not a wizard

rare mural Aug 18, 2025, 3:39 PM

#

@jagged scarab I think like this:

RenderThread.invokeOnRenderContext(() -> {
    GL11.glTexImage2D(textureTarget, mipmapLevel, internalFormat, width, height, borderWidth, pixelFormat, pixelType, pixelData);
});

#

you pass a lambda/closure to invokeOnRenderContext

#

which I guess runs the closure on the render thread

jagged scarab Aug 18, 2025, 3:39 PM

#

For example, what's the point of a setWidth method if you cannot access the inner pixels?............. Is it some sort of design pattern do makes thing incomprehensible?..

jagged scarab Aug 18, 2025, 3:40 PM

#

rare mural <@536179643875852294> I think like this: ```java RenderThread.invokeOnRenderCont...

Thanks I'm trying this

floral sluice Aug 18, 2025, 3:42 PM

#

rare mural <@536179643875852294> I think like this: ```java RenderThread.invokeOnRenderCont...

not even that, Texture literally has render functions as well

rare mural Aug 18, 2025, 3:42 PM

#

I just mean this is how you run stuff on the render thread

floral sluice Aug 18, 2025, 3:43 PM

#

There's so much info here from just looking simply at the Texture class, I don't know how you could miss this

rare mural Aug 18, 2025, 3:43 PM

#

but yeah someTexture.render(x, y, renderWidth, renderHeight);

floral sluice Aug 18, 2025, 3:44 PM

#

Literally in the constructor of TextureID - RenderThread.queueInvokeOnRenderContext(() -> this.createTexture(false));

rare mural Aug 18, 2025, 3:44 PM

#

I just looked for the first time 5 minutes ago and found it

#

oh you mean doc

floral sluice Aug 18, 2025, 3:45 PM

#

Like even look at ```java
TextureID.generateHwId(boolean)

jagged scarab Aug 18, 2025, 3:46 PM

#

rare mural <@536179643875852294> I think like this: ```java RenderThread.invokeOnRenderCont...

It crashes with no explanation

jagged scarab Aug 18, 2025, 3:47 PM

#

rare mural but yeah `someTexture.render(x, y, renderWidth, renderHeight);`

Yeah it call SpriteRenderer and it takes a Texture which is supposed to contain pixels

rare mural Aug 18, 2025, 3:48 PM

#

@jagged scarab try this

int size = 64;
Texture tex = new Texture(size, size, "whatever", 0);
int bytesPerPixel = 4;
int totalPixels = size * size;
ByteBuffer pixels = ByteBuffer.allocateDirect(totalPixels * bytesPerPixel);
pixels.put(2048, 255);
pixels.flip();
tex.setData(pixels);
tex.render(200, 200, size, size);

#

if it don't work, try using two for-loops to set every pixel

jagged scarab Aug 18, 2025, 3:49 PM

#

rare mural <@536179643875852294> try this ``` int size = 64; Texture tex = new Texture(siz...

I try your snippet

rare mural Aug 18, 2025, 3:49 PM

#

i'm curious if it'll work

jagged scarab Aug 18, 2025, 3:49 PM

#

rare mural if it don't work, try using two for-loops to set every pixel

This is not the problem !

rare mural Aug 18, 2025, 3:49 PM

#

mmok

jagged scarab Aug 18, 2025, 3:50 PM

#

rare mural i'm curious if it'll work

FYI setData crashes the game....

#

but ill try...

floral sluice Aug 18, 2025, 3:51 PM

#

dont construct new texture, get it from game files

#

how are you using Texture exactly?

#

like whats the purpose of you using it

rare mural Aug 18, 2025, 3:51 PM

#

the whole point is to render something custom at realtime

#

like obviously it's not gonna be performant enough for what he needs

floral sluice Aug 18, 2025, 3:51 PM

#

like an image?

rare mural Aug 18, 2025, 3:51 PM

#

using the cpu like that

#

but i think he's just demoralized

#

and wants to render literally anything

#

to keep the juices going

#

😂

jagged scarab Aug 18, 2025, 3:52 PM

#

Yes

#

I just want to render something the optimization part can be fixed later with the right method (maybe @Jab knows)

rare mural Aug 18, 2025, 3:53 PM

#

once you get one pixel working

#

you can make PZ-Paint

floral sluice Aug 18, 2025, 3:53 PM

#

if he wants to render an image from the media folder you include, it can be done via

final int flags = 0;
Texture tex = Texture.getSharedTexture("media/path/to/YourTexture.png", flags);

rare mural Aug 18, 2025, 3:53 PM

#

😂

floral sluice Aug 18, 2025, 3:53 PM

#

but it wouldn't be doing pixel stuff, that you need to go more internal to do

rare mural Aug 18, 2025, 3:53 PM

#

yeah rendering images from disk is ezpz

#

i think my snippet might work

#

if setData doesn't inexplicably crash the game

floral sluice Aug 18, 2025, 3:54 PM

#

But you'd want to extend UIElement probably and override the functions like render.

#

Otherwise it won't display

jagged scarab Aug 18, 2025, 3:54 PM

#

floral sluice But you'd want to extend UIElement probably and override the functions like rend...

I did this

rare mural Aug 18, 2025, 3:54 PM

#

nah there's no reason really to go through UIElement

#

we did it already

#

it just calls .render

#

and that ends up just using SpriteRender to draw stuff

#

so just take out the middleman

#

how to do thinnest draw shape to screen

floral sluice Aug 18, 2025, 3:55 PM

#

essentially, but if you're having issues then that'd be the best place to look

rare mural Aug 18, 2025, 3:55 PM

#

yeah we got that working already at least

#

can fall back if need but I looked pretty good and UIElement just calls render on its children which potentially override .render to do spriterenderer stuff

#

like UIWindow, etc

#

Ah you know what

#

It looks like you do need to call setData on the render thread

#

so more liek this:

int size = 64;
Texture tex = new Texture(size, size, "whatever", 0);
int bytesPerPixel = 4;
int totalPixels = size * size;
ByteBuffer pixels = ByteBuffer.allocateDirect(totalPixels * bytesPerPixel);
pixels.put(2048, (byte)255);
pixels.flip();

RenderThread.invokeOnRenderContext(() -> {
    tex.setData(pixels);
    tex.render(200, 200, size, size);
});

fresh nexus Aug 18, 2025, 3:58 PM

#

looks at https://github.com/aoqia194/leaf-example-mod/blob/main/README.md

jagged scarab Aug 18, 2025, 3:58 PM

#

rare mural It looks like you *do* need to call setData on the render thread

I'm not on the render thread, I'm on context zero 🤡

rare mural Aug 18, 2025, 3:58 PM

#

Though to @floral sluice's point, you'd want the render call to happen each frame

fresh nexus Aug 18, 2025, 3:58 PM

#

... Hmm, Don't have an IDE or a gradle.. or a loom.

jagged scarab Aug 18, 2025, 3:59 PM

#

RenderThread.invokeOnRenderContext crashes the game too !

fresh nexus Aug 18, 2025, 3:59 PM

#

welp, I guess that counts me out.

floral sluice Aug 18, 2025, 3:59 PM

#

yea I see it UIElement does ```java
SpriteRender.instance.render(Texture, x, y, width, height, r, g, b, a, null);

#

What was the problem with this?

rare mural Aug 18, 2025, 3:59 PM

#

what do you mean?

#

the goal is to draw custom runtime rendered stuff to screen

floral sluice Aug 18, 2025, 3:59 PM

#

fresh nexus ... Hmm, Don't have an IDE or a gradle.. or a loom.

IDEA is free, so is gradle, so is loom

#

you only need IDEA, which comes with gradle and loom and everything else

rare mural Aug 18, 2025, 4:00 PM

#

@floral sluice is your recommendation to use a UIElement just for the benefit of getting your .render called each frame so you don't have to figure out a different way of rendering repeatedly?

fresh nexus Aug 18, 2025, 4:00 PM

#

And whats the website for 'IDEA' so I don't have to google a very common english word and hope to end up remotely in the correct place and not a malware lookalike site?

floral sluice Aug 18, 2025, 4:00 PM

#

rare mural <@268199041542651904> is your recommendation to use a UIElement just for the ben...

sure, but also, if you dont want to extend it, just look at what calls UIElementInterface.render and go up the callstack until you find a render loop that is worth injecting into

rare mural Aug 18, 2025, 4:00 PM

#

intellij IDEA

dusk pebbleBOT Aug 18, 2025, 4:01 PM

#

https://pzwiki.net/wiki/IntelliJ_IDEA

PZwiki

IntelliJ IDEA

IntelliJ IDEA is an Integrated development environment (IDE) used by Project Zomboid modders. It is most useful to parse the Java files of the game.

floral sluice Aug 18, 2025, 4:01 PM

#

Jetbrains IntelliJ IDEA Community Edition ^

rare mural Aug 18, 2025, 4:01 PM

#

floral sluice sure, but also, if you dont want to extend it, just look at what calls UIElement...

Extending is perfectly fine

jagged scarab Aug 18, 2025, 4:01 PM

#

fresh nexus And whats the website for 'IDEA' so I don't have to google a very common english...

https://www.jetbrains.com/idea/

JetBrains

The Leading IDE for Professional Java and Kotlin Development

IntelliJ IDEA is the JetBrains IDE for pro development in Java and Kotlin. Built for your comfort, it unlocks productivity, ensures quality code, supports cutting-edge tech, and protects your privacy.

floral sluice Aug 18, 2025, 4:01 PM

#

rare mural Extending is perfectly fine

UIElement expects certain lua tables to be populated though, thats why I mention just injecting into the main render loop

#

Most likely, the main KahLua thread has it's own render method

fresh nexus Aug 18, 2025, 4:02 PM

#

I assume community edition?

rare mural Aug 18, 2025, 4:02 PM

#

Yeah that's what we were dealing with. What I had him do was take UIElement, and scrap all the functionality related to lua, children, etc etc

#

All that was left was the original .render and all we left in there was the debug outline code which we got to render by adding it to the UIManager

#

So it's a nice way to create a class that can be added to UIManager naturally 🙂

fresh nexus Aug 18, 2025, 4:03 PM

#

rare mural So it's a nice way to create a class that can be added to UIManager naturally 🙂

lol love hollowing out existing code.

floral sluice Aug 18, 2025, 4:03 PM

#

Most UI that was made in Java back then and still a little now, extend UIElement

fresh nexus Aug 18, 2025, 4:03 PM

#

"you do things, Kinda like I wanna do.. but.. not really. BUT NOW YOU WILL"

floral sluice Aug 18, 2025, 4:03 PM

#

I think they have some boilerplate still in Lua to make it not die

fresh nexus Aug 18, 2025, 4:03 PM

#

rips out old code, does code transplant

rare mural Aug 18, 2025, 4:03 PM

#

I mean you can just implement UIElementInterface, but I didn't feel like guiding through that

#

"delete all the stuff that isn't also in UIElementInterface" was an easy directive to follow hehe

rare mural Aug 18, 2025, 4:04 PM

#

floral sluice Most UI that was made in Java back then and still a little now, extend UIElement

yeah but if all you want is for UIManager to call your .render each frame, all you need to be is a valid UIElementInterface

#

@jagged scarab so that's what I actually recommend

#

go back to our UIViewport or whatever you called it

#

and put this texture snippet I shared inside the render

#

you can delete that debug drawing code and just keep the new texture code

jagged scarab Aug 18, 2025, 4:06 PM

#

rare mural <@536179643875852294> so that's what I actually recommend

The compiler says

C:\Users\asdsadasd\.gradle\caches\leaf-loom\42.11.0-unstable.30715\dev.aoqia.leaf.yarn.42_11_0_unstable_30715.41.78.16+build.1-v2\mappings.jar: The process cannot access the file because it is being used by another process.

So I'm trying to kill processes but it still won't compile

fresh nexus Aug 18, 2025, 4:07 PM

#

Clone the repository or use the template feature provided by GitHub. so do I have to clone the repo or can I just download a copy to disk?

jagged scarab Aug 18, 2025, 4:07 PM

#

fresh nexus `Clone the repository or use the template feature provided by GitHub.` so do I h...

Just download the installer

fresh nexus Aug 18, 2025, 4:07 PM

#

.. I did

floral sluice Aug 18, 2025, 4:07 PM

#

fresh nexus `Clone the repository or use the template feature provided by GitHub.` so do I h...

cloning the repo is the basically the same as downloading main as a zip

fresh nexus Aug 18, 2025, 4:07 PM

#

im talking about the mod template

floral sluice Aug 18, 2025, 4:07 PM

#

jagged scarab Just download the installer

no, you dont need the installer

#

you dont need to clone the installer, nor do you need to actually use it (for dev in IDE)

rare mural Aug 18, 2025, 4:08 PM

#

the build configuration in the example-mod does it magically

fresh nexus Aug 18, 2025, 4:08 PM

#

... so I download the example mod as a zip, extract it somewhere anddd...?

#

... why is the open project dialog *.*

jagged scarab Aug 18, 2025, 4:11 PM

#

I'm deleting the cache.........

fresh nexus Aug 18, 2025, 4:11 PM

#

#

iv got literally no idea what file to open

jagged scarab Aug 18, 2025, 4:11 PM

#

Open directory

#

This directory is the root

fresh nexus Aug 18, 2025, 4:12 PM

#

#

.... open directory?

rare mural Aug 18, 2025, 4:12 PM

#

@jagged scarab look at your dms

fresh nexus Aug 18, 2025, 4:13 PM

#

Oh. Its one of those file dialogs thats a folder dialog -_-

#

even though it says to open a filename...

#

Hmm, where are the enviroment variables...

floral sluice Aug 18, 2025, 4:16 PM

#

it's because technically you can open a project just fro ma file

fresh nexus Aug 18, 2025, 4:16 PM

#

for the LEAF_CLIENT_GAME_PATH = D:\SteamLibrary\steamapps\common\ProjectZomboid thing..

floral sluice Aug 18, 2025, 4:16 PM

#

if you select and open the build.gradle file

floral sluice Aug 18, 2025, 4:16 PM

#

fresh nexus for the LEAF_CLIENT_GAME_PATH = D:\SteamLibrary\steamapps\common\ProjectZomboid ...

you have to set them based on your operating system

#

search up on google how to set environment variables

#

if you're using the default steam install and it's at the default location, you dont need to do this

fresh nexus Aug 18, 2025, 4:17 PM

#

.. oh, those enviroment variables...

#

please for the love of god people stop using those...

#

the 'fun' when you.. suddenly run outta space, because your path is like 900000000 long and has 3 compilers with the same damn name in them

floral sluice Aug 18, 2025, 4:18 PM

#

??? the max path limit assuming its extended is fairly large

#

also they are objectively the best way to handle system-specific configuration

#

I tried having project-specific, but it's no wonder and I knew it wouldn't be good, because people commit their install path to git and then everyone cant build the project.

#

thats why I said it's super easy for most users that have everything default. Most people install their games on the drive Steam is installed (C:) and it auto detects it

#

I did think about parsing the regedit paths of Steam and the vdf files to get PZ game directory, but this is much code for only small benefit (dev environment only), and it's still not even guaranteed to work

fresh nexus Aug 18, 2025, 4:22 PM

#

.. despite setting the enviroment variable, I still get

#

Client game file 'C:\Program Files (x86)\Steam\steamapps\common\ProjectZomboid\media\AnimSets\player\climbwindow\end.xml' does not exist.

#

fresh nexus Aug 18, 2025, 4:25 PM

#

floral sluice ??? the max path limit assuming its extended is fairly large

Yea it gets less fun when you install several bespoke development enviroments for various UC's at once 😛

#

Bonus points when your MMORPG's refuse to let you develope while running your shop in the background because 'omg GCC.exe must be some kinda hacker tool'

#

So any clue what I did wrong?

fresh nexus Aug 18, 2025, 4:32 PM

#

floral sluice if you're using the default steam install and it's at the default location, you ...

Sadly my steam is not in the default location

floral sluice Aug 18, 2025, 4:32 PM

#

I won't question why it's at C:\Steam, in any case that should theoretically work

#

make sure you completely shutdown and restart the IDE, environment variables only update after the program is restarted

fresh nexus Aug 18, 2025, 4:33 PM

#

ah k

floral sluice Aug 18, 2025, 4:33 PM

#

environment variables are imported once at hte start of a program and they dont change until you restart it

fresh nexus Aug 18, 2025, 4:34 PM

#

java.io.IOException: Failed to copy file from (C:\Steam\steamapps\common\ProjectZomboid\media\AnimSets\zombie\hitreaction\Shot\ShotChestStepR.xml) to (C:\Users\Black Moons.gradle\caches\leaf-loom\41.78.16\extracted\media\AnimSets\zombie\hitreaction\Shot\ShotChestStepR.xml)

#

(and many more like that)

floral sluice Aug 18, 2025, 4:34 PM

#

update your game version in the example mod's gradle\libs.versions.toml

fresh nexus Aug 18, 2025, 4:34 PM

#

... why is it trying to copy to black moons.gradle\ ?

floral sluice Aug 18, 2025, 4:34 PM

#

leaf-loader to 1.4.1, leaf-loom to 0.6.0 and game version (assuming you're unstable branch) is 42.11.0-unstable.20715

floral sluice Aug 18, 2025, 4:35 PM

#

fresh nexus ... why is it trying to copy to black moons.gradle\ ?

the game is copied to the gradle cache

fresh nexus Aug 18, 2025, 4:35 PM

#

No

#

im saying, that user doesn't exist

#

black moons\ exists, black moons.gradle\ is.. a failure to properly concat paths together

floral sluice Aug 18, 2025, 4:36 PM

#

I am unsure. It might be an error with spaces in user folder. I've never seen a space personally in a user folder before

fresh nexus Aug 18, 2025, 4:36 PM

#

Sigh.

floral sluice Aug 18, 2025, 4:36 PM

#

You can override that by doing GRADLE_HOME environment variable to C:\Users\Black Moons\.gradle

#

or I think that should work at least

#

oop it's GRADLE_USER_HOME

fresh nexus Aug 18, 2025, 4:40 PM

#

Failed to find zomboid version: 42.11.0-unstable.20715

floral sluice Aug 18, 2025, 4:40 PM

#

30715, not 20715

#

I mispelt it

#

if only keys weren't right next to each other 😭

#

also I forgot to mention, I added the clearLoomCache gradle task a version or two ago and forgot to mention it here I think. So here I was telling you to manually delete the cache when you can just run that lol

fresh nexus Aug 18, 2025, 4:42 PM

#

seems to be spending its time doing things.

floral sluice Aug 18, 2025, 4:43 PM

#

that will be the game copying

#

it scales based on drive write speed, it will take not too long on a slow SSD, and if you're on a m.2 basically like 3-4 minutes at most. HDD as albion showed me (RIPPP) is like 50 minutes

#

ok like I mentioned 2 days ago, im going to be heavily focusing on everything docs related. It's mainly going to be going towards mod setup and the quirks with leaf. I don't think there is too much to document honestly

#

I do need to update the readme's for loom and loader, but these don't need as much attention as they are mainly for developing leaf and not the user

fresh nexus Aug 18, 2025, 4:54 PM

#

Ok it seems to be odne without exploding.

#

so.... do I now have a decompiled PZ somewhere for me to look at?

#

(I assume in IDEA?)

floral sluice Aug 18, 2025, 4:55 PM

#

fresh nexus so.... do I now have a decompiled PZ somewhere for me to look at?

run the genSources gradle task to generate decompiled sources that you can look at

#

in IDEA, on the right sidebar I think is where the gradle drawer usually is

#

most of this is on the example mod readme, or it should be

fresh nexus Aug 18, 2025, 5:00 PM

#

floral sluice run the `genSources` gradle task to generate decompiled sources that you can loo...

the leaf->gensources task?

fresh nexus Aug 18, 2025, 5:01 PM

#

floral sluice most of this is on the example mod readme, or it should be

Generate decompiled game sources by running the genSources Gradle task. Oh yes, this totally tells me what to do.. if I was a hollywood hacker on CSI

#

yea, the readme doesn't help at all because it doesn't tell me where on earth of the 1000+ odd buttons this IDE has where to click

floral sluice Aug 18, 2025, 5:05 PM

#

Well it's generally not IDE specific, you can even run it in the cli via .\gradlew genSources

rare mural Aug 18, 2025, 5:05 PM

#

yeah the ide has a gradel panel

#

just double click genSources

fresh nexus Aug 18, 2025, 5:05 PM

#

floral sluice Well it's generally not IDE specific, you can even run it in the cli via `.\grad...

No, I can't because I dunno where the CLI is.

floral sluice Aug 18, 2025, 5:05 PM

#

I should really specify that people have an understanding of this stuff, since not to be harsh but I don't want leaf to be filled up with questions asking about how the IDE or gradle works, since all of this is very accessible with a quick google

floral sluice Aug 18, 2025, 5:06 PM

#

fresh nexus No, I can't because I dunno where the CLI is.

cli is your terminal, command prompt, shell, etc

fresh nexus Aug 18, 2025, 5:06 PM

#

It would also help to say leaf->gensources since there is like 10 different tabs to look through on that page

fresh nexus Aug 18, 2025, 5:06 PM

#

floral sluice cli is your terminal, command prompt, shell, etc

Ok then I have no idea what a .\gradlew is

rare mural Aug 18, 2025, 5:07 PM

#

gpt, what is .\gradlew

floral sluice Aug 18, 2025, 5:07 PM

#

Anyone who knows how to use Gradle with IDEA knows that a "leaf" tab would probably suggest something related to the leaf project you're using

floral sluice Aug 18, 2025, 5:07 PM

#

rare mural gpt, what is .\gradlew

gradlew is a gradle wrapper

fresh nexus Aug 18, 2025, 5:07 PM

#

floral sluice Anyone who knows how to use Gradle with IDEA knows that a "leaf" tab would proba...

Yea, I don't.

rare mural Aug 18, 2025, 5:07 PM

#

lol i know what it is

floral sluice Aug 18, 2025, 5:07 PM

#

oh it wasn't a question 😭

fresh nexus Aug 18, 2025, 5:07 PM

#

I thought I made that clear already?

floral sluice Aug 18, 2025, 5:08 PM

#

fresh nexus I thought I made that clear already?

Yes you did, I am telling you this because I really don't want this thread to be questions asking what gradle is and how they can order bread from their nearby grocer or something

#

It'll become a thread less about leaf and more of a general tech support for how to use java...

#

I never intended anyone unexperienced with Java and mixin to use leaf. That is the purpose of leaf, people who are experienced enough make java mods that expose functionality in Lua, so people who know Lua which is far simpler without the hassle of mixin can reap the rewards of Java modding

#

I'm not saying you can't become experienced either, it's just in general feels like a punch in the gut to have people ask more questions that are easily google like how to use their IDE rather than leaf-related questions, in the leaf mod project

fresh nexus Aug 18, 2025, 5:15 PM

#

Sorry, just no idea where else to even ask.

#

Where does GenSources put the PZ sources?

floral sluice Aug 18, 2025, 5:16 PM

#

in the loom gradle cache

#

alongside the game files that were copied over

#

more specifically, %GRADLE_USER_HOME%\caches\leaf-loom\decompile

fresh nexus Aug 18, 2025, 5:17 PM

#

So.. .the .jar's in C:\Users\Black Moons.gradle\caches\leaf-loom\42.11.0-unstable.30715\extracted ?

floral sluice Aug 18, 2025, 5:17 PM

#

no, that is the game

fresh nexus Aug 18, 2025, 5:17 PM

#

Oh, decompile

floral sluice Aug 18, 2025, 5:18 PM

#

zomboidMaven is the folder that contains the final game files that are used by the IDE in dev environment only

fresh nexus Aug 18, 2025, 5:18 PM

#

its a zip of... randomly named files of text.

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scratches head...

floral sluice Aug 18, 2025, 5:19 PM

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and com.theindiestone is a fake maven prefix I've created because I felt zombie.* was a too broad and possibly conflicting prefix to have in buildscripts. THough, it is still zombie.* in the actual class structure and code

floral sluice Aug 18, 2025, 5:19 PM

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fresh nexus its a zip of... randomly named files of text.

yes, they are hashes of decompiled classes

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If you're trying to read them, you do it through the IDE via search files or control click when you import a class, not through reading the raw decompiled files

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Though if you really really want to read the decompiled sources externally, they in the zomboidMaven with the suffix -sources.jar

fresh nexus Aug 18, 2025, 5:21 PM

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No I want it in the IDE...

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via search files edit->find->find in files?

floral sluice Aug 18, 2025, 5:22 PM

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yes, CTRL+SHIFT+F keybind, search for something

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if you want to search the name of a class, I believe it's CTRL+N/CTRL+SHIFT+N but I've modified my keymap so im not sure

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keep in mind that IDEA's default search filters might not search through sources of any kind, so you have to change those

fresh nexus Aug 18, 2025, 5:23 PM

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Erm, do I have to extract the zip first?

floral sluice Aug 18, 2025, 5:23 PM

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no..

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you dont have to touch anything in the gradle cache folder at all

fresh nexus Aug 18, 2025, 5:25 PM

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trying find in files: C:\Users\Black Moons.gradle\caches\leaf-loom\decompile... getting nothing?

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for things like 'log' and 'vehicle'

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rare mural Aug 18, 2025, 5:28 PM

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just do in project, yea?

fresh nexus Aug 18, 2025, 5:29 PM

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still nothing?

rare mural Aug 18, 2025, 5:30 PM

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dunno i don't have leaf stuff open atm

fresh nexus Aug 18, 2025, 5:30 PM

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log only has this:

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#Leaf (forked from FabricMC/fabric)