attracteur.py

Created by schraf

Created on August 07, 2022

686 Bytes

from kandinsky import *
from math import sin, cos

fill_rect(0,0,320,222,(0,0,0))

def degrade(a, b, nbVal = 10):
    (r1,g1,b1) = a
    (r2,g2,b2) = b
    dr = int((r2 - r1) / nbVal)
    dg = int((g2 - g1) / nbVal)
    db = int((b2 - b1) / nbVal)
    color = []
    for i in range(nbVal):
        color.append((r2, g2, b2))
        r2 = r2 - dr
        g2 = g2 - dg
        b2 = b2 - db
    return color

color = degrade((255,255,0), (255,0,255), 100)

x,y,z=.3,.6,.1
a,b,c=.082,.1,14
dt=.025
n=0
while n < 12000:
  n+=1
  dx=-y-z
  dy=x+a*y
  dz=b+z*(x-c)
  x+=dx*dt
  y+=dy*dt
  z+=dz*dt
  g=color[n%90]
  set_pixel(int(7*x/(z+.9)+170),int(5-1.2*(y-100)/(z+.7)),g)

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