small victory: i managed to implement a love2d dialogue textbox system in fennel using only coroutines
this is the *entire* code to use this
render-text literally is just a coroutine closure that gets resumed every tick, and automatically handles how to render it based on the current time
this is what the closure actually looks like if you're curious! https://gist.github.com/Archenoth/d189ce7b20ea922be3d3169f6b369fef
(i named it .clj because github doesn't recognize fennel)
basically, every tick, the coroutine to render a single line of dialogue resumes with a new time in scope, and based on that, renders a subset of text
after it renders a full line, it continues to a new yield loop to render the bouncy triangle at the bottom to note you can progress
and when the coroutine finally finishes, a new line takes its place
the magic is that resuming a coroutine just jumps right back to the place i yielded from, so i can break this coroutine into tiny pieces that get rendered every frame
meaning, i only ever need to interact with it in once place after making it; it's completely self-contained!
(i wonder how this compares to how scheme continuations work?)
oh, and if you are curious about the faces i drew in literally 5 seconds in mspaint because i needed something to test with, here they are!
anyway, fennel continues to be a super-cool language that i like lots, so it's cool finding excuses to use it more