get_vector_rotation_quat(3)

✨ get_vector_rotation_quat ✨

okay bestie, welcome to the Allegro manual, section 3, and today's main character is get_vector_rotation_quat 💅 she lives in the Allegro game programming library and she is here to spin your points around a vector, no cap.

🌸 NAME 🌸

get_vector_rotation_quat — constructs a quaternion to rotate points around a vector. it's giving Allegro game programming library 🎀

🦋 SYNOPSIS 🦋

#include <allegro.h>

void get_vector_rotation_quat(QUAT *q, float x, y, z, float a);

💖 DESCRIPTION 💖

so basically, this function constructs a quaternion ✨ and that quaternion will rotate points around the vector you specify with x, y, z — and it does the spin by the angle you specify with a.

and here's the little detail that matters, bestie, do not skip it 🙈 the angle a is given in binary, 256 degrees to a circle format. yes. 256 degrees. a whole circle is 256. that's the vibe, that's the format, periodt.

so like… not radians, not the regular 360-degrees degrees. it's the 256-to-a-circle flavor, iykyk 💫

ngl if you pass in a regular-degree angle here she will simply rotate your points to somewhere cursed 😭 256 degrees to a circle, fr fr.

👑 SEE ALSO 👑

there's literally nothing else listed here, bestie — this is the whole page, and honestly? she ate 💅

and that's the whole thing, gorgeous 🫶 this page is from Allegro, version 4.4.3, and yeah it's dated — so go forth and rotate your points around a vector, 256-degrees-to-a-circle style, and slay 💖✨🎀🦋🌸