Wave Function Collapse
In this grasshopper example file you can use a series of bounding boxes to model a parametric form.
Monoceros
Monoceros was developed at studio Subdigital by Ján Toth and Ján Pernecký. Monoceros is an implementation of the Wave Function Collapse (WFC) algorithm developed for game design by Maxim Gumin and extended and promoted by Oskar Stålberg with his game Townscaper.