2 words, Detector Element.

@zolch111
You know how detector walls create electricity when particles touch it? What about a particle that does the same.

for a particle that does it you can have a photosensitive cell (pscn -> nscn) or check whether an aray passes strikes a pscn or not (if it doesnt, it hit a particle)

Nice idea! +10

I see you want me to bump this zolch me bro.
anyway +1