christmas.py

Created on April 30, 2018

630 Bytes

draws the christmas balls (without the tree). The positions, colors and sizes of the balls are more or less random. To create a drawing, just type xmas(); a more impressive effect is obtained with for k in range(10): xmas()

from math import *
from kandinsky import *
from random import *
def ball(cx=160,cy=100,r=80,rc=2):
  for x in range(int(cx-r),int(cx+r+1)):
    for y in range(int(cy-r),int(cy+r+1)):
      cr=(x-cx)**2+(y-cy)**2
      cr /= r**2
      if cr<1:
        k=sqrt(1-cr)
        if rc==0:
          cc=color(int(k*255),int(k*255),0)
        elif rc==1:
          cc=color(0,int(k*255),int(k*255))
        else:
          cc=color(int(k*255),0,int(k*255))
        set_pixel(x,y,cc)
def xmas():
  for x in range(8):
    for y in range(5):
      ball(40*x+20+randint(-8,8),40*y+30+randint(-8,8),randint(8,16),randrange(3))