It appears that output is buffered during live-display. It would be nice to be able to print during a repeat, for example.

(define sun (λ () (let ([t (spawn)]) (repeat 36 (printf "~s~n" (turtle-location t)) (move! t 200) (turn-left! t 170)))))

All output is buffered until the next prompt is seen on the Scheme end basically to save on the overhead of talking between the two processes (and for a few sanity / state change modes). I think that I could fix this or at least output buffering more often. I'll look into it.

This issue was closed by revision eb2910668d0d.