#!/usr/bin/nawk -f $0
# Using these flags
#
# nodraw == 1
# harmless == 2
# bulletproof = 4
#
BEGIN {
  if(ARGC < 3) {
    frame_delay = 0.7;
    num_frames= 100
    num_verts = 7
    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*3,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 = 0.5 * cos(t4 + t1);
      y = 0.5 * sin(t4 + t1);

      color(j,numverts,pi2)
       
      flags = 0

      printf("%d %f %f %f %02x%02x%02x\n",flags,x,y,z,red,green,blue);
    }
    for(j=0;j<num_verts;j++) {
      t2 = (j/num_verts)*pi2;
      t4 = (j/(num_verts-1))*pi2;

      x = -2*cos(t4 + t1 ) 
      y = 2*sin(t4 + t1 );

      color(j,numverts,pi2)

      if(!(j%5)) flags = 3
      else flags = 4

      printf("%d %f %f %f %02x%02x%02x\n",flags,x,y,z,red,green,blue);
    }
    for(j=0;j<num_verts;j++) {
      t2 = (j/num_verts)*pi2;
      t4 = (j/(num_verts-1))*pi2;

      x = -4*cos(t4 + t1 ) 
      y = 4*sin(t4 + t1 );

      color(j,numverts,pi2)

      if(!(j%3)) flags = 3
      else flags = 4

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

function color(j,numverts,pi2)
{
  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;
}
