In my Quantum Engine boulder dash type game demo, I have now got a character that moves around on the screen, and rocks and gems that now fall in the same boulder dash way...yay!!

rocks and gems falling:


after rocks and gems have fallen:


PS. I have been getting all my boulder dash information (algorithms, etc.) from here:
http://www.elmerproductions.com/sp/peterb/

Specifically like these parts (boulder information):
http://www.elmerproductions.com/sp/p...ects/0000.html

cheers,
Paul