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)