al_calculate_ribbon(3)

✨ NAME ✨

Okay bestie, this is the al_calculate_ribbon(3) page from the Library Functions Manual, and it’s serving pure Allegro 5 API. The function is al_calculate_ribbon, and yes, we’re about to make ribbons make sense. 🎀

🌸 SYNOPSIS 🌸

Steal this exactly, bestie:

#include <allegro5/allegro_primitives.h>

void al_calculate_ribbon(float* dest, int dest_stride, const float *points,
   int points_stride, float thickness, int num_segments)

💖 DESCRIPTION 💖

This function calculates a ribbon given an array of points, and the ribbon goes through all of the passed points — not just the cute ones. ✨

If thickness <= 0, then num_segments of points are required in the destination buffer; otherwise you need twice as many. The dest and points buffers should consist of regularly spaced doublets of floats, corresponding to the x and y coordinates of the vertices. That’s the layout, no cap. 💅

🎀 Parameters 🎀

• dest — pointer to the destination buffer.
• dest_stride — distance (in bytes) between starts of successive pairs of coordinates in the destination buffer.
• points — an array of pairs of coordinates for each point.
• points_stride — distance (in bytes) between starts of successive pairs of coordinates in the points buffer.
• thickness — thickness of the spline ribbon.
• num_segments — the number of points to calculate.

🦋 SEE ALSO 🦋

These are the friends in the group chat:

• al_draw_ribbon(3)
• al_calculate_arc(3)
• al_calculate_spline(3)

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Bye bestie! 💜 Source/version sign-off: the Allegro reference manual for al_calculate_ribbon(3). Date: not listed in the footer, so no fake timestamp from me — periodt. 🌈