Decompile java classes without field_ and func_

[ElTotisPro50]

so i installed java decompiler gui but because minecraft has custom fields and things is showing them and func_ and field_ are not readable, i watched a tutorial but is too old(is using bearded octo nemesis but i cant download it), is there another way to deobfuscate the func_numbers and field_numbers?

[Luis_ST]

why, what's the reason for?

[ElTotisPro50]

  On 12/28/2021 at 10:50 PM, Luis_ST said:

why, what's the reason for?

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well im creating a mod with some similar features to other mods, and i want to read the code(im not copying the mod and reupload it i promise) because i like testing with modding and minecraft and with other mods

[Luis_ST]

you find the source code of vanilla inside your IDE, in the dependencies of your project

[ElTotisPro50]

  On 12/28/2021 at 10:56 PM, Luis_ST said:

you find the source code of vanilla inside your IDE, in the dependencies of your project

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sorry for misundersanding, i mean deobfuscate(which means to make readable the func and field things) a .class file 

[Luis_ST]

  On 12/28/2021 at 10:56 PM, Luis_ST said:

you find the source code of vanilla inside your IDE, in the dependencies of your project

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again the IDE contains the readable source code of vanilla
which version did you use?

[ElTotisPro50]

  On 12/28/2021 at 11:07 PM, Luis_ST said:

again the IDE contains the readable source code of vanilla
which version did you use?

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im in minecraft 1.16.5 and using Intellij Idea Community, do you mean i can open a .class file(that is not mine) in mi IDLE?(if i can, how)

[Luis_ST]

  On 12/28/2021 at 11:09 PM, ElTotisPro50 said:

im in minecraft 1.16.5 and using Intellij Idea Community, do you mean i can open a .class file(that is not mine) in mi IDLE?(if i can, how)

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in your IDE yes, take a look at the Dependencies of your project,
you will find the minecraft scource code in the forge-<forge_version>_<mappings_type>_<minecraft_version>.jar, in the package net.minecraft

unfortunately i can't tell, where you find the Dependencies exactly in your Project since i'm not familiar with Intellij (i use Eclipse)

[ElTotisPro50]

  On 12/29/2021 at 8:15 PM, Luis_ST said:

in your IDE yes, take a look at the Dependencies of your project,
you will find the minecraft scource code in the forge-<forge_version>_<mappings_type>_<minecraft_version>.jar, in the package net.minecraft

unfortunately i can't tell, where you find the Dependencies exactly in your Project since i'm not familiar with Intellij (i use Eclipse)

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i dont want the source code of my project or minecraft or forge, i want to deobfuscate  a separated .class file of other mod for example:

InventedMod

InventedBlock.class

inventedBlockContainer.class

 

ETC

[Drosophila]

[EDIT] Sorry I misread your post. This isn't possible for other mods unless you have specific mappings for them. Many are open source, and you can find the source code on curseforge. Many mods that don't list their source on curseforge still have public github repos you can search for.

If you want to build off of a mod that doesn't provide source it's a good idea to check the license first to make sure the author permits what you're trying to do. If they do or you reach out and get permission you'll have to figure out what methods mean contextually, or ask the mod dev for source. 

Edited December 29, 2021 by Drosophila
misread

[ElTotisPro50]

  On 12/29/2021 at 8:28 PM, Drosophila said:

[EDIT] Sorry I misread your post. This isn't possible for other mods unless you have specific mappings for them. Many are open source, and you can find the source code on curseforge. Many mods that don't list their source on curseforge still have public github repos you can search for.

If you want to build off of a mod that doesn't provide source it's a good idea to check the license first to make sure the author permits what you're trying to do. If they do or you reach out and get permission you'll have to figure out what methods mean contextually, or ask the mod dev for source. 

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is there a internet page where i can find what func_ and field_ means one by one, like a translation for them?, literally thats the only thing i need

[Drosophila]

  On 12/29/2021 at 8:47 PM, ElTotisPro50 said:

is there a internet page where i can find what func_ and field_ means one by one, like a translation for them?, literally thats the only thing i need

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Those are arbitrary prefixes created by the process of obfuscation. The naming convention refers to functions and fields. They could just have easily been foo_ and bar_. 

Edited December 29, 2021 by Drosophila
typo

[ElTotisPro50]

  On 12/29/2021 at 8:55 PM, Drosophila said:

Those are arbitrary prefixes created by the process of obfuscation. The naming convention refers to functions and fields. They could just have easily been foo_ and bar_. 

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so no site where i can translate them to readable?

[Drosophila]

  On 12/29/2021 at 9:02 PM, ElTotisPro50 said:

so no site where i can translate them to readable?

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No because there is no way of knowing what the original name was. In the case of forge, mappings are already present. Here's some more info on the process: https://forge.gemwire.uk/wiki/Toolchain/Retro/2.1

[Majd123mc]

Hold on, there might be a chance that the mod files aren't being the ones obfuscated, but simply the vanilla function calls are.

@ElTotisPro50 Are all the functions and methods like this? Or are only some of them

[ElTotisPro50]

  On 1/16/2022 at 7:19 PM, Majd123mc said:

Hold on, there might be a chance that the mod files aren't being the ones obfuscated, but simply the vanilla function calls are.

@ElTotisPro50 Are all the functions and methods like this? Or are only some of them

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oh i know that the mod didnt obfuscated the methods, maybe minecraft did, an example is: world.func_numbers or player.func_numbers, this is from a mod called deathnote mod

public class DeathNoteGUIGui extends DeathnoteModElements.ModElement {
  public static HashMap guistate = new HashMap<>();
  
  private static ContainerType<GuiContainerMod> containerType = null;
  
  public DeathNoteGUIGui(DeathnoteModElements instance) {
    super(instance, 5);
    this.elements.addNetworkMessage(ButtonPressedMessage.class, ButtonPressedMessage::buffer, net.neio.deathnote.gui.DeathNoteGUIGui.ButtonPressedMessage::new, ButtonPressedMessage::handler);
    this.elements.addNetworkMessage(GUISlotChangedMessage.class, GUISlotChangedMessage::buffer, net.neio.deathnote.gui.DeathNoteGUIGui.GUISlotChangedMessage::new, GUISlotChangedMessage::handler);
    containerType = new ContainerType((ContainerType.IFactory)new GuiContainerModFactory());
    FMLJavaModLoadingContext.get().getModEventBus().register(this);
  }
  
  @OnlyIn(Dist.CLIENT)
  public void initElements() {
    DeferredWorkQueue.runLater(() -> ScreenManager.func_216911_a(containerType, net.neio.deathnote.gui.DeathNoteGUIGui.GuiWindow::new));
  }
  
  @SubscribeEvent
  public void registerContainer(RegistryEvent.Register<ContainerType<?>> event) {
    event.getRegistry().register(containerType.setRegistryName("death_note_gui"));
  }
  
  private static void handleButtonAction(PlayerEntity entity, int buttonID, int x, int y, int z) {
    World world = entity.field_70170_p;
    if (!world.func_175667_e(new BlockPos(x, y, z)))
      return; 
    if (buttonID == 0) {
      Map<String, Object> $_dependencies = new HashMap<>();
      $_dependencies.put("entity", entity);
      $_dependencies.put("guistate", guistate);
      $_dependencies.put("x", Integer.valueOf(x));
      $_dependencies.put("y", Integer.valueOf(y));
      $_dependencies.put("z", Integer.valueOf(z));
      $_dependencies.put("world", world);
      WriteProcedureProcedure.executeProcedure($_dependencies);
    } 
  }
  
  private static void handleSlotAction(PlayerEntity entity, int slotID, int changeType, int meta, int x, int y, int z) {
    World world = entity.field_70170_p;
    if (!world.func_175667_e(new BlockPos(x, y, z)))
      return; 
  }
}

as you can see func_numbers is seen after "something."

[ElTotisPro50]

  On 1/16/2022 at 7:19 PM, Majd123mc said:

Hold on, there might be a chance that the mod files aren't being the ones obfuscated, but simply the vanilla function calls are.

@ElTotisPro50 Are all the functions and methods like this? Or are only some of them

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also there is a program called bearded octo nemesis that deobfuscate any .class files(is made for minecraft) but it doesnt work

[Luis_ST]

did you use Mcreator?

[ElTotisPro50]

  On 1/17/2022 at 7:44 AM, Luis_ST said:

did you use Mcreator?

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im not a psycho hahaha, im programming everything in my mod (the code i leaved is from a obfuscated class of a mod called death note mod for 1.15.2, that was an example of how minecraft obfuscate the names)

[Luis_ST]

  On 12/29/2021 at 8:18 PM, ElTotisPro50 said:

i dont want the source code of my project or minecraft or forge, i want to deobfuscate  a separated .class file of other mod for example:

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of how many classes/methods/fields do you need the SRG names (and yes func_175667_e is a SRG name and not a obfuscate name)

[ElTotisPro50]

  On 1/17/2022 at 7:47 PM, Luis_ST said:

of how many classes/methods/fields do you need the SRG names (and yes func_175667_e is a SRG name and not a obfuscate name)

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what is a SRG?, ( https://imgur.com/a/RRPPegl )

"of how many classes/methods/fields do you need the SRG names" i dont understand your question, i need to convert those obfuscated fields or "SRG" as you said to readable fields

[OutCraft]

Hi!

I think the Forge Discord has a Bot for converting SRG Names to the newest Mappings. I don't know how it works but try just going on their discord an typing !help or something like that 

[Luis_ST]

  On 1/17/2022 at 8:23 PM, ElTotisPro50 said:

"of how many classes/methods/fields do you need the SRG names" i dont understand your question, i need to convert those obfuscated fields or "SRG" as you said to readable fields

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I think this would make the hole thing clear

[ElTotisPro50]

  On 1/18/2022 at 5:37 AM, Luis_ST said:

I think this would make the hole thing clear

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ok that just explained me how forge obfuscate the fields but i need to really deobfuscate them not to explain mehow they do it(maybe im blind and in the page there is  tool or something that deobfuscates the fields but i didnt see anything)

[Luis_ST]

you can't get the deobfuscate names from mojang and (there is a file 😅) there is no reason to use them

Edited January 18, 2022 by Luis_ST