ALLEGRO_VERTEX - Allegro 5 API

       Defines  the generic vertex type, with a 3D position, color and texture coordinates for a single texture.
       Note that at this time, the software driver for this addon cannot render 3D primitives.  If you want a 2D
       only primitive, set z to 0.  Note that you must initialize all members of this struct when  you’re  using
       it.   One  exception  to this rule are the u and v variables which can be left uninitialized when you are
       not using textures.

       Fields:

       • x, y, z - Position of the vertex (float)

       • u, v - Texture coordinates measured in pixels (float)

       • color - ALLEGRO_COLOR(3alleg5) structure, storing the color of the vertex

       ALLEGRO_VERTEX - Allegro 5 API

ALLEGRO_PRIM_ATTR(3alleg5)

Allegro reference manual                                                                 ALLEGRO_VERTEX(3alleg5)

              #include <allegro5/allegro_primitives.h>

              typedef struct ALLEGRO_VERTEX ALLEGRO_VERTEX;