Contains decompiled java classes from RignNRoll scripts.jar file and some new classes ('rickroll' namespace). Java classes with compilation errors or that causes bugs were renamed from .java to .java_broken
Can be used to compile a modified scripts.jar to replace the one in the game directory.
1) Clone the repository
git clone https://github.com/JosueCA/RigNRoll-modding-java-toolkit.git
2) Create a new Java project in Eclipse pointing to the cloned directory
Eclipse > File > New > Java Project
- Project Name:
RigNRoll2026 - Location:
RigNRoll-modding-java-toolkit
3) Remove scripts_jar_original_cfr from the build path
Right click on the directory > Build Path > Remove from build path
4) Set the JRE System Library to Java 1.5
Right click on project > Properties > Java Build Path > Libraries tab
You can use the JVM bundled with the game: c/Program Files/1C/RigNRoll/Jvm
5) Create a fake Run Configuration
Run > Run Configurations > Java Application
- Name:
FAKE - Project:
RigNRoll2026 - Main class:
rickroll.Main
6) Export the JAR
Eclipse > File > Export > Java > Runnable JAR file
- Launch Configuration:
FAKE - RigNRoll 2026 - Accept the "This operation repacks referenced libraries" prompt
The following warnings after export are expected and can be ignored:
JAR export finished with warnings. See details for additional information.
Exported with compile warnings: RigNRoll2026/src/adjusting/Variables.java
duplicate entry: org/benf/cfr/reader/api/CfrDriver$Builder.class
Compilation errors are not OK. If you see any, make sure
scripts_jar_original_cfrhas been removed from the build path (step 3).
7) Replace the JAR in the game directory