radtofix_r(3)

💖 radtofix_r — the Allegro manual, but make it slay 💖

okay bestie, welcome to the Allegro manual page for radtofix_r(3) — yes it's a real manpage, yes it's about one (1) single constant, and yes I'm gonna make it iconic anyway. 🎀

✨ NAME ✨

radtofix_r — a constant that converts radians to fixed point angles. It lives in the Allegro game programming library, and it's giving "tiny but mighty". 🦋

✨ SYNOPSIS ✨

#include <allegro.h>

extern const fixed radtofix_r;

that's it. that's the whole vibe. one include, one extern const fixed, no drama. 💅

✨ DESCRIPTION ✨

so here's the tea, bestie: this constant hands you a ratio — and that ratio is literally the thing you need to convert a fixed point number in radians into a fixed point number in binary angle format. 🌈

like, radians are cute and all, but Allegro's angle world speaks binary angle format, so when you need to cross that bridge? this is the bridge. no cap. 👑

here's the example, verbatim, exactly as the elders wrote it:

fixed rad_angle, binary_angle;
...
binary_angle = fixmul(rad_angle, radtofix_r);

see how clean that is? rad_angle goes in, fixmul does its little multiplication moment with radtofix_r, and binary_angle comes out the other side, fully converted, main character energy. ✨

lowkey important: it's a ratio, so you multiply with it (fixmul), you don't just assign it and hope for the best. fr fr. 🙈

✨ SEE ALSO ✨

• fixmul(3) — the multiplication bestie that makes the whole conversion happen 💖
• fixtorad_r(3) — the reverse ratio, for when you wanna go the other way 🦋

and that's the page!! this was from the Allegro manual, version 4.4.3, and honestly? a whole constant with its own manpage is so extra of it and I respect it deeply. periodt. 👑💜