radii = [.1, 1]
arc_chance = .5
arcangles = range(0, 360, 45) + [1, 359, 360]
distances = [1,-.1,0,0,.1,1]

distances = distances + [2*d for d in distances] + [5*d for d in distances]
radii = radii + [2*d for d in radii] + [5*d for d in radii]

from math import *
from random import *

def path(x, y, n):
    print "O%d sub (#1=radius)" % n
    print "F100"
    print "G0 X%f Y%f" % (x, y)
    print "O%d if [#1 NE 0]" % (n+1)
    print "G41.1 D#1"
    print "O%d endif" % (n+1)

    for i in range(4):
        x, y = move(x, y)

    print "G40"
    x, y = move(x, y)

    print "O%d endsub" % n
    return x, y

def move(x,y):
    if random() < arc_chance:
        x, y = arc(x, y)
    else:
        x, y = line(x, y)
    return x, y

def arc(x, y):
    direction = randrange(2)
    print "G%d" % (direction+2),

    theta = choice(arcangles)
    theta1 = choice(arcangles)
    r = choice(radii)
    ox = -cos(theta)*r
    oy = -sin(theta)*r
    print "I%f J%f" % (ox, oy),

    x = x + ox + cos(theta1)*r
    y = y + oy + sin(theta1)*r


    print "X%f Y%f" % (x, y)
    return x, y

def line(x, y):
    dx = choice(distances)
    dy = choice(distances)

    x = x + dx
    y = y + dy
    print "G1 X%f Y%f" % (x,y)
    return x, y

j=0
for sx in range(-100, 101, 50):
    for sy in range(-100, 101, 50):
        path(sx, sy, j)
        print "F100"
        print "G21"
        print "O%d call [0]" % j
        #print "O%d call [-1]" % j
        #print "O%d call [1]" % j
        j = j + 2
print "m2"