al_draw_arc(3alleg5)

✨ al_draw_arc — the Allegro 5 API glow-up ✨

okay bestie, pull up a chair because we're talking about al_draw_arc from the Allegro 5 API (that's the 3alleg5 manual, mwah 💅). it draws an arc. that's the whole gig. but like, beautifully.

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🎀 SYNOPSIS 🎀

#include <allegro5/allegro_primitives.h>

void al_draw_arc(float cx, float cy, float r, float start_theta,
   float delta_theta, ALLEGRO_COLOR color, float thickness)

that's the whole signature, copy it exactly, don't be cute with it 🫶

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🌸 DESCRIPTION 🌸

so. it draws an arc. a curved lil swoosh of color. the way that a single function can give you a whole rainbow-adjacent vibe is genuinely iconic. 🌈

here's the tea on the parameters, one by one, no skips:

• cx, cy — Center of the arc. yes both of them, it's a point, it needs two coordinates, we don't make the rules (we do, actually, it's a circle).
• r — Radius of the arc. how far out from the center the curve lives. 🌟
• color — Color of the arc. your moment to shine, pick something gorgeous.
• start_theta — The initial angle from which the arc is calculated in radians. radians!! not degrees!! do not come in here with degrees, i will know. 😭
• delta_theta — Angular span of the arc in radians (pass a negative number to switch direction). so like, if you wanna go the other way around, negative it up, periodt. 🔄
• thickness — Thickness of the arc, pass <= 0 to draw hairline arc. yes bestie, <= 0 literally means zero or negative, that's the hairline setting, that's not a bug, that's the feature. 💀

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👑 SEE ALSO 👑

• al_calculate_arc(3alleg5)
• al_draw_elliptical_arc(3alleg5)

go read those too, they're the arc's besties fr fr. 🦋

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and that's the whole page, no notes. this one came straight out of the Allegro reference manual — sending you all my love from the al_draw_arc(3alleg5) era, mwah, slay, bye bestie 💖✨🎀