polygon(3)

✨ polygon(3) ✨

okay bestie, pop off, we're in the Allegro manual and this page is all about polygon — the lil function that draws a filled polygon 💅 it lives in the Allegro game programming library, and honestly? iconic.

🌸 NAME 🌸

polygon — draws a filled polygon 🎀 Allegro game programming library, periodt.

🦋 SYNOPSIS 🦋

#include <allegro.h>

void polygon(BITMAP *bmp, int vertices, const int *points, int color);

💖 DESCRIPTION 💖

so the way that this works is: polygon draws a filled polygon with an arbitrary number of corners. no cap, arbitrary — you can have as many corners as your heart desires 🫶

you pass it the number of vertices, plus an array containing a series of x, y points. and bestie, listen — that array holds a total of vertices*2 values, because every single corner is two lil numbers living their best life side by side 🥰

example, since i know you're a visual learner:

int points[12] = { 50, 50,   100, 100,  100, 150,
                   50, 200,  0,   150,  0,   100 };
...
clear_to_color(screen, makecol(255, 255, 255));
polygon(screen, 6, points, makecol(0, 0, 0));

see how it's giving six vertices and twelve whole numbers? that's the vertices*2 math doing its thing ✨ clear the screen to white, then draw a black filled hexagon on top. slay.

🌈 SEE ALSO 🌈

• triangle(3) — for when three corners is enough 💀
• polygon3d(3) — the 3D main character version 👑
• drawing_mode(3) — how you're drawing it
• makecol(3) — where those colors come from
• excamera(3) — camera things, iykyk

aaaand that's the whole page, babe 🎀 this was Allegro, version 4.4.3, and polygon(3) said what it said — go draw something cute, mwah 💖✨🦋