9 May
2020
9 May
'20
4:15 a.m.
Saw this topic a bit late, but just wanted to point out that Golly supports bounded grids with various topologies: plane, torus, Klein bottle, sphere, and cross-surface (aka real projective plane, but Conway preferred the term cross-surface). Details here: http://golly.sourceforge.net/Help/bounded.html If you have Golly, open Patterns/Life/Bounded-Grids and you'll find various examples of gliders and spaceships moving in different topologies. Andrew