On Fri, 24 Sep 2004, Vintage Computer Festival wrote:
On Fri, 24 Sep 2004, Paul Koning wrote:
sending of ball hitting paddle or wall is done
with contacts in the
mechanism, not with the logic itself. So the relay control has to
Perhaps I read it wrong but the PONGMECHANIK uses logic to determine when
the ball has hit a paddle or wall.
"Element 2: The movements of ball and racquet, as well as the collision
detection take place in a metal chassis under the glass cover. Each moving
game compoent has a mechanical counterpart, which is moved by electric
motors. When these parts collide, contacts are closed and the relays in
the computer switch the direction of rotation of the motors."
Hmm, upon further ponderance it seems like there is a combination of
mechanical contact and logic.
--
Sellam Ismail Vintage Computer Festival
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