al_map_rgba(3alleg5)

💖 al_map_rgba — Allegro 5 API 💖

okay bestie, gather round, because this is one of those little functions that you're gonna call like a thousand times and never think about again. it lives in the Allegro 5 manual (section 3alleg5), and it's literally the glow-up station for your colours. ✨

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🌸 SYNOPSIS 🌸

#include <allegro5/allegro.h>

ALLEGRO_COLOR al_map_rgba(
   unsigned char r, unsigned char g, unsigned char b, unsigned char a)

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🎀 DESCRIPTION 🎀

so what does it do? it takes your four lil numbers — r, g, b, a — each one ranging from 0-255 (yes, classic 8-bit-per-channel energy, we love a throwback) and it converts them into an ALLEGRO_COLOR(3alleg5). that's it. that's the whole job. and she does it flawlessly every single time. 💅

the a is the alpha, btw — that's your transparency, your main character opacity slider, your "how much do you actually want to be perceived" dial. iykyk. 🦋

✨ cute bonus fact: this function can be called before Allegro is initialized. so no, you don't have to wait for the whole engine to wake up and do its skincare routine first — you can map colours whenever the mood strikes. 🫶

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👑 SEE ALSO 👑

your sisters, your besties, the whole friend group:

• al_map_rgb(3alleg5)
• al_premul_rgba(3alleg5)
• al_map_rgb_f(3alleg5)

go say hi, they're all iconic. 🌈

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and that's the page, bestie! this was the Allegro reference manual — that's the source and the whole vibe right there, no date on this one so i'm not gonna make one up, we don't do that here 🙈 — signing off with a little al_map_rgba sparkle for you. go make something pretty. ⭐🎀💜