Martingonn

You probably used jd-gui to open it, didn't you? Nothing wrong with that, I also made that mistake, except that Notch was a smart guy and he obfuscated the code. That's why you only see files called "a", "b", "c" and then a file that combines them all. As I said, use RetroMCP to deobfuscate the code so that you will 100% understand it and be able to navigate it.

Decompiling minecraft indev, infdev, alpha, beta or whichever legacy version is really easy. I'm not a plug, I just also got interested in modding legacy versions (Infdev to be specific). Use https://github.com/MCPHackers/RetroMCP-Java Once you install their client and the Zulu Architecture that they say they recommend (or use your own Java). I encountered some problems, so I run it with: "java -jar RetroMCP-Java-CLI.jar". You should run it in a seperate folder (not in downloads), otherwise the files and folders will go all over the place. How to use RetroMCP: Type setup (every time you want change version), copy-paste the version number from their list (they support indev), write "decompile" and done! The code will now be deobfuscated and filenames will be normal, instead of "a", "b" and "c"! Hope I helped you, but I don't expect you to reply, as this discussion is 9 years old! What a piece of history!