Real-life robots are much more complex than algorithms. Aside from a decision logic they need robust skills to overcome the physical world as well. We try to test our drawing algorithms in real-life whenever we have a chance.
There's lots of coverage at the Blotter homepage, a project with drawing robots we did at the http://www.muhka.be/ Antwerp, Belgium, 2005. If you want some inspirational code, try the ants library on the NodeBox site.
Robots at the ELIA conference, Ghent, 2006.include("util/comment.php"); ?>