How can I detect when a key has been released?

[Xray]

I am currently working on a scene that requires the user to press and release keyboard keys. It's easy to activate a laser when a key gets pressed, for example, which sets a variable. But when the key is released, and the laser turns off, the variable in OnLaserHit or OnHitByLaser does not automatically get reset to zero. I figured out how to detect when a keypress is released using a motor-driven circle (arrrrgh!), but does anyone know a clever way to detect when a key is released without using mechanical devices such as motors turning, or boxes bumping into each other, etc? I want to do it with Thyme script alone, and of course with a laser that gets activated when a particular key is pressed.

Thanks!

[Xray]

I DID SOME MORE DIGGING THROUGH THE FORUMS AND I FOUND WHAT I WAS LOOKING FOR: http://www.algodoo.com/algobox/details.php?id=50835

[Kilinich]

good job

[Xray]

good job

Kilinich - It was YOUR clever scene that I used! Thanks very much for all the useful ideas that you come up with!

By the way, I am currently working on an Enigma cipher machine. It is very difficult and challenging, but I am making good progress. I will publish it some time this weekend.