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PONG REDUX

Zero Punctuation: The best game ever. 1up: A groundbreaking new development. PONG REDUX. Gregg Scranton Ben Pratt. Gamespot : Flawless! 10/10 . IGN: Better than the original. The Idea. ATMega88PA chip controls the game logic DAC and ADC interface analog world with digital logic

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PONG REDUX

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  1. Zero Punctuation: The best game ever 1up: A groundbreaking new development PONG REDUX Gregg Scranton Ben Pratt Gamespot: Flawless! 10/10 IGN: Better than the original

  2. The Idea • ATMega88PA chip controls the game logic • DAC and ADC interface analog world with digital logic • Oscilloscope used as the display • Paddles controlled by potentiometers

  3. Hardware • 8-bit DAC • SPI interface • 10-bit ADC • Only 8-bit precision • Mux • Two 10k potentiometers • Voltage divider SPI wires Y voltage X voltage

  4. Hardware • Tektronix 2445A analog oscilloscope • Retains old-school feel • Phosphor display offers better persistence • Ball can be a single point • Obstacles • Buttons, knobs, and options! Oh, my! • Trace “ghosting” • Flickering Trace artifacts

  5. Software • Plotting points • Ball movement • Velocity & angle variables • Collisions • Checks against ball/paddles/boundary • Angle of reflection is affected by angle and position of collision • Embellishment

  6. Software • Main loop switches between graphics and game logic • Timing used to schedule processes • ISR • ADC, timer overflow • SPI

  7. Game Over

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