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Nice, this is really fun to play with!

I messed around with something similar a few years ago, based on (the code in) this video https://www.youtube.com/watch?v=Z_zmZ23grXE

Edit: Apparently there are a lot of these! This variant is also pretty cool (smaller particles, more like "fields"): https://www.youtube.com/watch?v=nu5aDIEoBk0

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https://www.youtube.com/watch?v=makaJpLvbow <- this one is pretty awesome too. A very simple rule and quite the complex behavior. Though I'd recommend watching it at 175% speed, muted, and perhaps with the 1812 Overture as the background music.

Sweet, thank you for the links! I'll surely learn something from what they've been doing :)

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