Among the students who contribute to this forum, one of the biggest complaints is the lack of collision detection in Alice 2.0. As near as I have been able to determine, in order to determine the proximity of one object to another and stop the movement when they collide, they must approach one another in short steps instead of executing a move method and stopping in the middle of the move. However, I may be wrong on this because I haven't given it a lot of thought. If this will be an issue, I recommend that you search the forum for the keyword collision.

Dick Baldwin
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