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“Bad Apple” in Minecraft


Demoscene is the art of pushing computers to perform tasks weren’t designed to handle. One recurring theme in demoscene is the shadow-art animation “Bad Apple!!”. We’ve played it on the Commodore 64, Vectrex (a unique game console utilizing only vector graphics), Impulse Tracker, and even exploited Super Mario Bros. to play it. But how about Bad Apple!!.. in Minecraft?

The limit runs out before Minecraft fully processes the redstone dust depowering, so the power levels along the line only partially update, turning from 15,14,13,12,11 to 7,8,9,10,9 instead of 0,0,0,0,0 as expected. To streamline this process, we can use a long-standing bug where pistons pushing redstone blocks take 3 game ticks to extend when activated directly by user input. Luckily, I had a Python library to generate structure files from LISPy code, so getting the instant wire working was as simple as writing it out by hand in a straightforward format:

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