redscript

Toolkit for working with scripts used by REDengine in Cyberpunk 2077. Currently includes a compiler, a decompiler and a disassembler.

usage

Usage:
  decompile [opts]
  compile [opts]
Compiler options:
  -s, --src SRC        source file or directory
  -b, --bundle BUNDLE  redscript bundle file to read
  -o, --output OUTPUT  redscript bundle file to write
Decompiler options:
  -i  --input INPUT    input redscripts bundle file
  -o, --output OUTPUT  output file or directory
  -m, --mode MODE      dump mode (one of: 'ast', 'bytecode' or 'code')
  -f, --dump-files     split into individual files (doesn't work for everything yet)
  -v, --verbose        verbose output (include implicit conversions)
Lint options:
  -s, --src SRC        source file or directory
  -b, --bundle BUNDLE  redscript bundle file to use, optional

You can build the project and decompile all scripts in one command:

cargo run --bin redscript-cli --release -- decompile -i '/mnt/d/games/Cyberpunk 2077/r6/cache/final.redscript' -o classes.redscript

note: current version requires nightly version of rust (rustup default nightly)

language

The scripts use a Swift-like language. You can find a brief overview of it's features in the wiki.

integrating with the game

You can integrate this compiler with the game and make it compile your scripts on startup. To set that up, you need to follow these steps:

• Create Cyberpunk 2077\engine\config\base\scripts.ini file with the contents below
  

[Scripts]
EnableCompilation = "true"

• Place the scc.exe tool in the following location:
  Cyberpunk 2077\engine\tools\scc.exe
  (The scc executable can be found in Releases)

• Now you need to add some scripts. The compiler will look for scripts in Cyberpunk 2077\r6\scripts\
  You can copy the script below to Cyberpunk 2077\r6\scripts\lights.reds as an example:

@replaceMethod(CrossingLight)
protected final func PlayTrafficNotificationSound(status: worldTrafficLightColor) {
  return;
}

this mod will disable the walk don't walk crosswalk audio

You can find more script examples in resources/patches.reds in this repository.