makeacol32(3)

💖 makeacol32 — the Allegro manual, but make it cute 💖

okay bestie, welcome to the Allegro manual, page makeacol32(3). this is a real one, from the Allegro game programming library, and we're gonna get you fluent in it. pull up a chair, grab a strawberry, let's go 🍓

✨ NAME ✨

makeacol32 — takes an RGBA color and converts it into a 32-bit display pixel format. it's giving Allegro game programming library energy, and honestly? iconic 👑

🌸 SYNOPSIS 🌸

#include <allegro.h>

int makeacol32(int r, int g, int b, int a);

like, that's it. four little ints and she's ready to serve 💅

🦋 DESCRIPTION 🦋

so basically, makeacol32 converts an RGBA color into a 32-bit display pixel format — and the alpha (transparency) value is the whole point here. that's the A in RGBA, and she's the main character, no cap ✨

now, the way this works: there are no versions of this routine for other color depths, and that's not an oversight, bestie, that's math. only the 32-bit format has enough room to store a proper alpha channel. the other depths literally don't have the space. it's giving small purse, can't fit the whole alpha 👜😭

and here's the part you need to hear:

you should only use RGBA format colors as the input to draw_trans_sprite() or draw_trans_rle_sprite() after calling set_alpha_blender(). do not just draw them directly to the screen. that's not it, that's not the vibe, don't do it 🙈

so the order matters, fr fr. RGBA color → set_alpha_blender() → then hand it to draw_trans_sprite() or draw_trans_rle_sprite(). slay in that order or it won't slay at all 💅

💜 SEE ALSO 💜

• makeacol(3)
• set_alpha_blender(3)
• set_write_alpha_blender(3)

go read those next, bestie, they're the rest of the squad 🫶

and that's the whole page, babes. this was Allegro version 4.4.3, makeacol32(3), dropping into your terminal like the icon it is. mwah 💋🌈⭐