Matrix digital rain

Using canvas to recreate the iconic raining code, as seen in the Matrix films.

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Research

After a little searching, it appeared Katakana characters mixed with some single digit numbers closely matched the characters used in the film.

The Katakana characters start in unicode from U+30a0 for 96 characters.

Performance

On my MacBook Pro, the 50 columns of characters render at a steady 60fps. When I tried kicking it up to 100 columns, things got a little jumpy, dropping to about 20fps. Iā€™m wondering if some sort of quad-tree type structure could be used to reduce the number of operations/renders needed.