
RetroMCP-Java
A rewrite of MCP to provide support for many versions of Minecraft which were never supported by original MCP
3 years
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RetroMCP-Java
RetroMCP is a modification of the Minecraft Coder Pack to create a "Long Term Service" patch for Minecraft. RetroMCP-Java is a complete re-design of RetroMCP in Java.
Using
Using RetroMCP-Java is simple!
- Download and install JDK 8. MCPHackers recommend Azul Zulu.
- Run the latest release from the command line or via double click. If you run it via double click and RMCP errors, make sure your PATH
and your JAR file associations are properly configured.
Be careful! Using "Open with" context menu on Windows will not use a proper directory, be sure to change the default .jar file associations
- Run
setup
and choose the version you wish to decompile. - Run the
decompile
task - Mod away! Now it's Yourcraft!
For more info you can check RetroMCP Wiki.
Features
- Automatically download Minecraft .jar and libraries from version JSONs
- An improved launch method using LaunchWrapper
- Reobfuscation for all available versions
- Automatic project creation
- Merged codebase generation
Building
- Use a Git client or download the sources as a zip.
git clone git@github.com:MCPHackers/RetroMCP-Java.git
- Switch to the repository folder.
cd RetroMCP-Java
- Invoke the build task using Gradle or the Gradle wrapper.
gradlew build
Contributing
If you encounter any issues or bugs with RetroMCP, please create an issue and explain it in detail!
If you want to contribute, please keep pull requests about one topic instead of one huge pull request.
We thank everyone who contributes to this project!
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Reviews

user_lw5wW7iG
RetroMCP-Java by MCPHackers is a fantastic tool for Java developers looking to mod Minecraft. The extensive documentation and ease of use make it a must-have for anyone in the modding community. Check it out on GitHub!