indev-modloader

A modloader for Minecraft Indev 20100223

What's this

This document and repository will contain my efforts in creating a modloader for indev. This file will document the process and means to be didactic. I intend to make a release for every feature I add. The goal is being able to create rather complex indev mod using a mod_Name.java file. This modloader will modify whichever base classes are needed to make this possible, thus it will be released in form of a jar-drop mod.

This ModLoader is based in Risugami's original ModLoader, but it's not a direct port - albeit some methods are basicly the same.

My goal is keeping base class edit to the bare minimum. I'll be modifying Indev to make it more externally configurable.

I'm using Retro MCP to decompile and modify Minecraft Indev 20100223, so big thanks to all developers and contributors.

As you will notice, English is not my first language. That's why I'm using github to write the docs. Pull requests to fix my crappy writing are welcome!

Installing Modloader for Indev

• Grab a copy of Minecraft in-20100223 minecraft.jar. Open with 7zip or other compressed file manager.
• Open the latest modloader-indev-rXXXX.zip file with 7zip or other compressed file manager.
• Drag & drop all files from modloader to minecraft.jar
• Delete META-INF inside minecraft.jar
• Close all files.

Your mods can go into a mods folder or right into minecraft.jar. Mods have the classpath com.mojontwins.modloader. Check this git for lots of examples.

Betacraft

Follow these steps if you want to try the example mods included in this repo using Betacraft.

• Open betacraft, create a new instance for Indev Modloader. Call it Indev Modloader.
• Configure the in-20100223 version.
• Launch the game once. Close it once it's loaded.
• Go to %appdata%/.betacraft/versions/
• Copy (or rename) in-20100223.jar to in-20100223-modloader.jar
• Go to %appdata%/.betacraft/versions/jsons/
• Copy (or rename) in-20100223.info to in-20100223-modloader.info
• Open in-20100223.jar with 7zip or other compressed file manager.
• Open the latest modloader-indev-rXXXX.zip file with 7zip or other compressed file manager.
• Drag & drop all files from modloader-indev-rXXXX.zip to in-20100223-modloader.jar
• Delete META-INF inside in-20100223-modloader.jar
• Go to %appdata%/.betacraft/versions/Indev Modloader (or the name you gave to your new instance).
• Create a mods folder inside.
• Put modloader-indev-examples.zip from this repo inside the mods folder, don't unpack it.
• Launch Betacraft, select the Indev Modloader instance.
• Click on [Select Version] and select in-20100223-modload
• Click Play. Enjoy the bug fixes and the new level themes.

I wanna fiddle with this

Here's what you need to do:

1. Install RetroMCP and configure it for Indev 20100223. Decompile the jar.
2. Now you have a src folder with the decompiled & deobfuscated source code of Minecraft Indev. Now copy the file minecraft.diff found in the src folder of this repo in your RetroMCP folder (at the same level as the src folder) and type

    patch --binary -p1 -u -i "minecraft.diff" -d "."

This should patch a few files from Minecraft.

3. Now get src folder in this repo and copy it to your RetroMCP folder. It should combine with the already existing, patched src folder.
4. Fire up Eclipse or whatever you are using.

Diary

You can check the diary and read my babble about coding this thing:

Documentation

Not very good but at least it exists:

• Reference.
• Development diary.