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by cr0sh
3365 days ago
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Technically (loosely) the way the ball (circle) in the game is a lissajous figure; it uses a scaled sin and cosine signal driving the x and y input of the oscope to create it. It's one of several signals (mainly on the y-side) that are mixed down (done in a similar manner to a simple op-amp backed audio mixer circuit) before being sent to the scope input. |
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