al_fixcos(3)

👑 al_fixcos(3) — the Allegro 5 API bestie 👑

🌸 NAME 🌸

al_fixcos — Allegro 5 API. She’s the cosine girlie, and she’s here to help 💅

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✨ SYNOPSIS ✨

#include <allegro5/allegro.h>

al_fixed al_fixcos(al_fixed x);

🦋 DESCRIPTION 🦋

Okay so bestie, this function finds the cosine of a value using a lookup table. The input value must be a fixed point binary angle. That part is not optional, no cap.

Example, because we love a visual:

al_fixed angle;
float result;

/* Set the binary angle to 45 degrees. */
angle = al_itofix(32);

/* The cosine of 45 degrees is about 0.7071. */
result = al_fixtof(al_fixcos(angle));
assert(result > 0.7 && result < 0.71);

💖 RETURN VALUE 💖

Returns the cosine of a fixed point binary format angle as a fixed point value. Slay ✨

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Source: Allegro reference manual; page: al_fixcos(3); date/version: not printed on this footer, so she’s giving timeless icon energy 💅🎀🫶