Mixin VS gamebuilder

And one day maybe you'll need that to inject code into specific location, but it's to do advanced things: https://github.com/SpongePowered/Mixin/wiki

SpongePowered isn't a Mod, they're the group that maintain the Framework for Mixins. The next mod in the stacktrace is cpw.mods.modlauncher

That source was probably outdated. Forge didn't natively allow you to do that. You could do Java voodoo to allow a library that implemented(? Not sure if it implemented the feature or simply allowed it to be used in a specific way) Mixins, those allow you to modify the game's bytecode. Modern Forge has that library natively. Source: First paragraph of https://github.com/SpongePowered/Mixin/wiki/Mixins-on-Minecraft-Forge

These days Mojang provides obfuscation maps, so you can work with proper class and method names (though no parameter or local variable names). There's also been a lot of effort been put into the tooling. Nowadays there exists Gradle plugins that will download the game jar, decompile it and deobfuscate it using the official mappings. You develop against the deobfuscated code, then the plugin will turn the unobfuscated names back into their obfuscated versions when you compile. There's also been technology developed that lets you easily modify specific parts of a method in the game, so you can e.g. insert calls to your own functions at runtime.[1] This saves from you having to modify the game jar itself.

[1]: https://github.com/SpongePowered/Mixin

quilt (and fabric) take mojang's jar and preprocess it similarly, but the rest of the modifications to the code are done at runtime using a ridiculously powerful instrumenting classloader. the game is not decompiled at all, other than giving you something to look at in the IDE.

If you can't use the API, I suggest you to use Mixins or really asking yourself if your idea should worth the instability/effort of creating a coremod.

see spongepowered's mixin wiki

Google Gamebuilder what I really like to use to teach because it’s using JS. It was killed by Google (ofc) but still available and works perfectly https://github.com/googlearchive/gamebuilder

Here is the original trailer https://youtu.be/l9Mf_XEZq-A

And some of the tutorial videos are also available https://youtube.com/playlist?list=PLuYHfxlxFzb25nWnevSN5wQVO...

If you are rich enough, you can buy tiktok and sunset it faster than Google killed Game builder

why no go to https://github.com/googlearchive/gamebuilder and get it for free?

Unfortunately Google shelved it but they had a very similar project called Game Builder for Windows

Here is the original introduction video https://www.youtube.com/watch?v=L1hpFRztQGY

Got open sourced so you can still download it https://github.com/googlearchive/gamebuilder

Works perfectly under Linux with Wine or Proton.

The last full Steam release is also included if you don't want to compile it (7z.001-7z.002-7z.003) https://github.com/googlearchive/gamebuilder/tree/master/bui...

It's really fun and worth a try if you are looking for something similar not on Mac