Schnitzel (jagd)

Learn the Linux console with a small game. The name is inspired by the German term for a paper chase "Schnitzeljagd". The exercises are in German, so it is not directly usable for English speakers.

Prerequisites

The game is based on Ruby and requires at least Ruby 2.4 to run. No additional Gems required.

Platform

The game was tested on

• Ubuntu 19.04
• Ubuntu 18.04
• Manjaro Linux 18.1
• MacOS 10.14 (Mojave)
• MacOS 10.15.3 (Catalina)

Usage

You can directly execute the program from the src folder by starting the schnitzel.rb script. For production use, bundle all parts of the program into one single file with bin/build.rb and transfer the resulting file schnitzel to the target machine.

Structure

• bin - Build scripts
  • build.rb - Build the schnitzel script
  • generate_chaos.rb - Generate the file chaos.tar.xz that must be downloaded and unpacked by the players.
• src - Folder with the sources that are bundled together to the schnitzel script
  • exercises/ - The single exercises
  • schnitzel.rb - The script's source (can also be executed but consists of multiple parts)
  • helper.rb - Helper functions
  • exercise.rb - The class for the exercises
  • settings.rb - Settings for the program (pathnames etc.)
  • Makefile - Simple make file to build the whole schnitzel experience
• schnitzel - Game itself (only file needed on the target machine). Build it with bin/build.rb or src/Makefile.
• files - files included during the creation of the chaos.tar.xz
• chaos.tar.xz - file the students download during the exercise, containing additional material (see files folder)

Author

The game is developed by Thomas Smits.

Acknowledgement

This program is based on the idea of Eugen Krizki and Richard Vladimirskij and their framework pepio. Due to the many dependencies and problems with the node.js based pepio, I decided to do a complete re-implementation and extension in Ruby. The goal was to have one single file which can be downloaded and executed easily.