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# Auteur : Aël D.
# Réalisé par un de mes élèves de seconde 
# dans le cadre d'un DM "Les mathématiques sont belles"
# https://twitter.com/nsi_xyz/status/1380526928671674373

from math import *
from turtle import *
from random import *


speed(10)
hideturtle()

def spirale(a,xS,yS,longr,nbr,clr):
  penup()
  goto(xS,yS)
  pendown()
  for f in range (2500):
    x=randint(0,255)
    pencolor(f/clr,x,clr)
    setheading(f+nbr*a)
    forward(f/longr)
  penup()
  goto(xS,yS)
  pendown()
  
  
def lignes(xL,yL,dis,ran1,ran2):
  penup()
  goto(xL,yL)
  pendown()
  setheading(90)
  for l in range(ran1,ran2):
    x=randint(0,255)
    color(210,210,210)
    setheading(8*l)
    forward(dis)
    goto(xL,yL)

def clean(C,xC,yC,longrC,nbrC):
  penup()
  goto(xC,yC)
  pendown()
  pensize(2)
  for f in range (2500):
    pencolor(255,255,255)
    setheading(f+nbrC*C)
    forward(f/longrC)
  penup()
  goto(xC,yC)
  pendown()
    
def autres():
  pensize(2)
  clean(1,-100,100,3000,288)
  clean(1,-100,-100,3000,288)
  clean(1,100,100,3000,288)
  clean(1,100,-100,3000,288)
  pensize(1)
  for g5 in range(3): 
   spirale(g5,-150,0,3000,288,13)
  for g6 in range(3): 
   spirale(g6,150,0,3000,288,14)
  for g7 in range(3): 
   spirale(g7,0,-150,3000,288,15)
  for g8 in range(3): 
   spirale(g8,0,150,3000,288,16)
   

def principal():
  pensize(2)
  for g in range(6):
    spirale(g,0,0,1500,72,10)
  pensize(1)

pensize(1)  
lignes(0,0,200,0,45)
lignes(-100,-100,350,0,24)
lignes(-100,100,350,23,46)
lignes(100,-100,350,0,24)
lignes(100,100,350,23,46)
pensize(10)
for c in range (6):
  clean(c,0,0,1500,72)
principal()
penup()
goto(-100,-100)
pendown()
pensize(1)
autres()