fundamentals block cell automaton
In this type of cellular
automaton are forming a constant amount of cells one block. A
transformation rule decides, which states the associated cells take in
the next generation. In the following generation the blocks are formed
otherwise.
The type "block CA" in GeZA takes 2 cells for one block, in the next
generation these blocks are shifted by one cell (see image below).
The mode "Margolus" in GeZA-2D is a block cell automaton also!
For more informations click the Wikipedia article block cell automaton: