fade_interpolate(3)

💖 NAME 💖

fade_interpolate — the function that whips up a brand-new palette by interpolating between two other palettes 🎨✨ Part of the Allegro game programming library, bestie 💅

✨ SYNOPSIS ✨

#include <allegro.h>

void fade_interpolate(const PALETTE source, const PALETTE dest, PALETTE
output, int pos, int from, int to);

Obsessed with how clean that signature is, ngl. 🫶

🦋 DESCRIPTION 🦋

okay so here's the tea, bestie ☕ — fade_interpolate literally calculates a temporary palette that sits part way between source and dest, and it hands that fresh new palette back to you in the output parameter. it's giving glow-up, but make it math 💖

where exactly it lands between those two extremes? that's what pos is for, and it's so simple:

• 0 gives you an exact copy of source — like, a full clone, no changes, no cap 👑
• 64 gives you dest — we made it all the way, slay 💅
• 32 gives you a palette that's half way between the two — the middle child, the main character moment 🌸
• and etc., you get the vibe, it's just a position along the way ✨

⚠️ but wait — this routine only touches the colors between from and to, and yes that's inclusive, both ends, no crumbs left behind 🍓 so if you wanna interpolate the entire palette you gotta pass 0 and 255. that's the whole palette, every single color, periodt 💀✨

🌈 SEE ALSO 🌈

• fade_in(3) 💖
• fade_out(3) 💜
• fade_from(3) 🎀

and that's the whole page, bestie!! this icon of a manpage came from Allegro, version 4.4.3 — written in the fade_interpolate(3) era, the one and only 🦋✨ go interpolate something pretty, ily, mwah 💅💖