#!/usr/bin/nawk -f $0
BEGIN {
  if(ARGC < 3) {
    frame_delay = 0.06;
    num_frames= 100
    num_verts = 10
    period = 2
  }
  else {
    num_frames  = ARGV[1];
    num_verts   = ARGV[2];
    frame_delay = ARGV[3];
  }
  pi2= 2*atan2(0,-1);

  printf("%d %d %f\n",num_frames,num_verts,frame_delay); 

  for(k=0;k<(num_frames);k++) {
    t1 = (k/num_frames)*pi2;
    t3 = (k/num_frames-1)*pi2;

    for(j=0;j<num_verts;j++) {
      t2 = (j/num_verts)*pi2;
      t4 = (j/(num_verts-1))*pi2;

      x=((-sin((t4+t1)%pi2)*0.5))
      y=(( cos((t4+t1)%pi2)*0.5))
      if ( j > num_verts/2 ) {
        x = 2 * x;
        y = 2 * y;
      }

      red  =int(128*(( sin((j/num_verts)*pi2)/2)+0.5))+127;
      green=int(128*(( cos((j/num_verts)*pi2)/2)+0.5))+127;
      blue =int(128*((-sin((j/num_verts)*pi2)/2)+0.5))+127;

      printf("%d %f %f %f %02x%02x%02x\n",flags,x,y,z,red,green,blue);
    }
  }
  exit(0);
}
