The concept of an SDI was quickly brought up. If you could track a flying balls with the camera, compute it's flight and fire a ball so that the two would intercept before the goal it would be a legal defense.
The feasibilty of it...
Still, it would be extreamly sweet if you could have some little AA turret on your bot blowing balls out of the air with your own balls. Perhaps they should add some retroreflective tape to every other ball so they can act as tracer rounds
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-Andy A.