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fc0

fc0 is a modding toolkit for the game 2fc0f18.

Design

fc0 is designed around modding with source patches. It also comes with intermediary mappings, match files and proper deobfuscation mappings, a bit like Yarn for Minecraft.

Structure

  • buildSrc: The actual toolchain code, mostly Gradle tasks.
  • bytecode_tweaks: Bytecode tweak configuration files for fc0 Tools, currently used to mark bridge methods as such in bytecode.
  • intermediary: Deobfuscation mappings between obfuscated names and intermediary names, which mostly stay constant between versions.
  • mappings: Deobfuscation mappings between intermediary names and readable names.
  • matches: Match files for migrating mappings between versions.
  • patches: Source patches for making the game recompile.
  • src: Modifiable game sources that will be generated with gradle setup.

Setup

For modding

If you want to get a modding environment running, clone this repo, import it to IDEA and run gradle setup applyPatches.

When you want to build your mod, run gradle build. Your mod will be saved in build/libs as 2fc0f18-[version]-mod.jar

For mapping

Run gradle enigma.

Related projects

  • fc0 Launcher is a simple launcher for 2fc0f18. I made it because it was easier to run the game in a dev environment than outside of it.
  • fc0 Tools contains various bytecode and source code tools used by the fc0 environment. In the future, more fc0 toolchain code will be moved there so this repo becomes smaller.