Posts tagged demo

Atari 800 Winter Solstice Celebration Demo

Every December, I try to make a little wintery demo to exercise one of 8bitworkshop’s platforms. This year, I chose the Atari 800 to test out the new native TypeScript emulator in 8bitworkshop. You can see the demo emulated here.

I revisted my Bally Astrocade “Happy 2020” Demo, which simulates falling snow. It uses pixel-level collision to simulate each falling particle, which creates neat little piles of snow and particles that ripple off the sides of obstacles.

Atari ANTIC Mode $F uses the GTIA chip to add additional modes beyond what the original CTIA chip provides. I used GTIA Mode 10, which is 80 x 192 pixels with nine different colors.


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