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Please enjoy mini-demo "BANANAZOOMER"! It's a short cartridge with a couple of original 2D effects.
This is a port of http://maximecb.github.io/Turing-Drawings/ to PICO-8. I've had a lot of fun discovering interesting drawings on that site, and for some reason I was inspired this morning to make a PICO-8 version.
You can share the drawings you discover by writing down the code on the second page of the menu -- press the up arrow to see it. You can load them again from that same page (or just play around with the code) by holding X.
Have fun, and feel free to post anything interesting you find here in the thread!
I've been looking for a way to keep graphical effects in sync with music. This cart is my attempt to implement a "phase-locked-loop", which keeps time going smoothly forward while making small corrections to adjust for how the music has progressed.
It seems to work well, though it freaks out for a bit if you click outside the window or the framerate changes for any other reason.