al_draw_spline(3alleg5)

💖 al_draw_spline 💖

ok so bestie, this is a page from the allegro5 manual — yes, the Allegro 5 API 💅 like, the whole lib. and today's main character is al_draw_spline, which is lowkey iconic for reasons we're about to get into. grab a strawberry 🍓 and let's go.

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✨ NAME ✨

al_draw_spline — Allegro 5 API

like. that's it. that's the name. it draws splines, no cap.

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🌈 SYNOPSIS 🌈

#include <allegro5/allegro_primitives.h>

void al_draw_spline(const float points[8], ALLEGRO_COLOR color, float thickness)

so you gotta #include the primitives header first, periodt. no header, no spline, that's the vibe check. 🦋

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🎀 DESCRIPTION 🎀

it draws a Bézier spline given 4 control points. that's the whole gig. four points walk in, one smooth curvy line walks out. it's giving glow-up ✨

ngl a Bézier spline is that smooth swoopy curve you see in fancy graphics editors, and you only need 4 control points to define it here. the way that 4 little coordinate pairs can make something that pretty? obsessed. 💜

Parameters, bestie, one by one:

• points — an array of 4 pairs of coordinates of the 4 control points. so that's 8 floats total, which is why the signature says points[8] — 4 points × 2 coords each. math ate that fr fr. 🔥
• color — color of the spline. an ALLEGRO_COLOR, obviously, because this is Allegro and we stay on brand. 🎨
• thickness — thickness of the spline. and here's the tea: pass <= 0 and it draws a hairline spline instead. zero or negative? boom, hairline. that's the whole rule, don't overthink it. 💀

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👑 SEE ALSO 👑

• al_calculate_spline(3alleg5) — if you just wanna do the math and not draw anything, she's right there. iykyk.

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and that's the page, bestie!! 🫶 this was the Allegro reference manual talking to you, wrapping up the al_draw_spline(3alleg5) era. go forth and draw something curvy. slay. 💖🎀🌸