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Re:Cats, lasers and Raspberry Pi by asdfman123 on Friday February 07, 2020 @09:44AM (#22266389)
I built this using an Arduino board once for my roommate's cat.

It played with it for a little while quickly lost interest, despite how much I tweaked the randomization algorithm. (I tried stuff like truly random points, random jumps, slow movement, etc. etc.)

I figured out that she played much longer when I did it by hand. I realized that when I did it manually, I'd wait for her to catch the dot and then move immediately, so I thought about making something that tracked where the cat was, too, but never got around to it.

Re:Cats, lasers and Raspberry Pi by ebalit on Friday February 07, 2020 @01:01PM (#22268779)
I think you might be able to detect that the cat caught the dot by identifying an unplanned motion of the dot itself.
Re:Cats, lasers and Raspberry Pi by asdfman123 on Friday February 07, 2020 @01:53PM (#22269339)
That's an excellent point and it sounds very easy to implement.