Jump to content
Search the Forums BEFORE making a new post.
Currently supported: All versions

Possible to use ASM on other mods?

Sqeegie

By Sqeegie
in Modder Support

 Share

Recommended Posts

Sqeegie Tree Puncher

Sqeegie

Posted
Posted

I'm interested in making custom add-on mods for other mods which don't have APIs. However, I'm wondering if it's possible to use ASM, or Reflection for that matter, on other forge mods instead of vanilla MC code. From what I've read and picked up, the IClassTransformer interface is part of Mojang's launcher. Therefore, is technically separate from Forge/FML. So I'd assume that it'd therefore be possible to transform most classes that are loaded into the JVM, including Forge mods. That being said, I cannot find any examples of someone transforming a mod this way. I don't know if that's because of some copyright issue I'm unaware of, or because it's simply not possible to. I have a little experience transforming MC's code with ASM, however, I'm still quite new to the whole topic. So if someone could point me in the right direction, and if this concept is even possible, could supply me with some examples how it might differ from transforming MC's code (I'd assume you wouldn't be using FML's Loading Plugin), I'd be much obliged to you.

 

- Sqeegie

Draco18s Reality Controller

Draco18s

Posted
Posted

Can you?

Absolutely.

 

Should you?

Avoid ASM like the plague.

 

Better yet, avoid the plague like ASM.

  • Like 1

Apparently I'm a complete and utter jerk and come to this forum just like to make fun of people, be confrontational, and make your personal life miserable.  If you think this is the case, JUST REPORT ME.  Otherwise you're just going to get reported when you reply to my posts and point it out, because odds are, I was trying to be nice.

 

Exception: If you do not understand Java, I WILL NOT HELP YOU and your thread will get locked.

 

DO NOT PM ME WITH PROBLEMS. No help will be given.

jeffryfisher World Shaper

jeffryfisher

Posted
Posted

What you do depends on your situation and the foreign-mod:

 

If you are modding solely for yourself, running on your own machine(s), then anything goes.

 

If you are hosting a server for an invited group of friends, then first try reflection. If that doesn't work, then try to contact the foreign mod's developer(s) for source-code and support / collaboration. In extremis, you might try ASM, but back up everything first, and have your friends sign waivers.

 

If you're going to publish a mod at Curse, then forget about ASM, and carefully document any reflection that does anything more inside other mods besides reading protected/private data. Beware of dependencies. Either insist that users install them or else encapsulate features so that they side-step missing mods gracefully.

 

If I recall correctly, the postInit event is where you should detect other mods, possibly communicate with them, and decide what to do about the context in which your mod finds itself.

The debugger is a powerful and necessary tool in any IDE, so learn how to use it. You'll be able to tell us more and get better help here if you investigate your runtime problems in the debugger before posting.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
 Share
Go to topic listing

Announcements



  • Recently Browsing

    • No registered users viewing this page.

  • Posts

    • Rodney Spenser
      How To Recover Lost Funds From Crypto Investment Scam

      By Rodney Spenser · Posted

      Betafort Recovery has emerged as a prominent figure in the realm of cryptocurrency recovery, gaining a reputation for their exceptional ability to retrieve lost Bitcoin (BTC) and other cryptocurrencies. Their expertise and track record have made them a beacon of hope for individuals facing the distressing situation of lost or inaccessible crypto assets.  
    • Ugdhar
      Help me with registries

      By Ugdhar · Posted

      When you name a method like that, with no return value, it is a constructor. The constructor must have the same name as the class it constructs, in this case, ModItems. I would strongly advise reading up on some basic Java tutorials, because you will definitely be running into a lot more issues as you go along without the basics. *I should also add that the Forge documentation is a reference, not a tutorial. Even following tutorials, you should know Java basics, otherwise the smallest of mistakes will trip you up as you copy someone elses code.
    • quase
      Help me with registries

      By quase · Posted

      so, I'm starting modding and I'm following the official documantation for forge: https://docs.minecraftforge.net, but in the registries part it is not working as it is in the docs:   public class ModItems { private static final DeferredRegister<Item> ITEMS = DeferredRegister.create(ForgeRegistries.ITEMS, DarkStarvation.MOD_ID); public static final RegistryObject<Item> TEST_ITEM = ITEMS.register("test_item", () -> new Item(new Item.Properties())); public DarkStarvation(FMLJavaModLoadingContext context) { ITEMS.register(context.getModEventBus()); } } in 'public DarkStarvation(...' the DarkStarvation has this error: Invalid method declaration; return type required and the getModEventBus(): Cannot resolve method 'getModEventBus' in 'FMLJavaModLoadingContext' please help, I asked gpt but it is saying that I'm using an old method, but I'm following the latest version of Forge Docs???
    • Ugdhar
      Reply to my question please

      By Ugdhar · Posted

      I merged your second post with the original , there is no need to post a new thread asking for an answer. If someone sees your post and can help, they will reply. If you are seeking a quicker response, you could try asking in the Minecraft Forge diacord.
    • TileEntity
      Cobblemon modpack keeps crashing idk why

      By TileEntity · Posted

      Create a new instance and start with cobblemon - if this works, add the rest of your mods in groups   Maybe another mod is conflicting - like Sodium/Iris or Radical Cobblemon Trainers

  • Topics

×
×
  • Create New...

Important Information

By using this site, you agree to our Terms of Use.

  I accept