do_circle

do_circle(3alleg4)               Allegro manual               do_circle(3alleg4)



NAME
       do_circle - Calculates all the points in a circle. Allegro game
       programming library.

SYNOPSIS
       #include <allegro.h>


       void do_circle(BITMAP *bmp, int x, int y, int radius, int d, void
       (*proc)(BITMAP *bmp, int x, int y, int d));

DESCRIPTION
       Calculates all the points in a circle around point (x, y) with radius r,
       calling the supplied function for each one. This will be passed a copy of
       the bmp parameter, the x and y position, and a copy of the d parameter,
       so it is suitable for use with putpixel(). Example:

          void draw_explosion_ring(BITMAP *bmp, int x, int y, int d)
          {
             ...
          }

             do_circle(screen, SCREEN_W/2, SCREEN_H/2,
                       SCREEN_H/16, flame_color,
                       draw_explosion_ring);


SEE ALSO
       do_ellipse(3alleg4), do_arc(3alleg4), do_line(3alleg4), circle(3alleg4),
       circlefill(3alleg4)



Allegro                           version 4.4.3               do_circle(3alleg4)