Free Hero Mesh class definition file

A Free Hero Mesh puzzle set consists of four files; this article is about the .class file, which contains the program codes implementing the rules of the game.

This file is a plain text file, with a somewhat Lisp-like format, describing the classes of objects, their attributes, and the code to implement their behaviours; however, the code implementing behaviours is stack-based, like Forth or PostScript. It also includes a macro preprocessor.