14FIREFLY
Firefly is a minimalist programming language for animation and sound. Firefly targets the BBC micro:bit, but you don’t need one to have fun with the language—the console version will work just fine. The inspiration for the language comes from the 5×5 grid of LEDs that form the display of the micro:bit. The language manipulates a “firefly” that lives on the grid. As it flies, it leaves a luminous trail of light behind it. Oh, the firefly also sings, because why not?
This chapter introduces the philosophy and design of the language, followed by its implementation. The chapter ends with a section on configuring a micro:bit, should you wish ...
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