# quantum_cubes_6.py

# quantum_cubes_6.py

from Tkinter import *
from random import *
from math import cos, sin, radians

ww = 720
hh = 720

tiles = (0.0, 0.0), (-0.866, -0.5), (0.0, -1.0), (0.866, -0.5)

def create_tile():
    polygon = [(x*base, y*base) for (x,y) in tiles]

    polygon = [(    xc+x*cos(radians(angle)) + y*sin(radians(angle)),
                    yc+y*cos(radians(angle)) - x*sin(radians(angle)) )
                    for (x,y) in polygon]

    cubes[t] = canvas.create_polygon(polygon, fill=color, outline="black", width=1)

root = Tk()

canvas = Canvas(root, width=ww, height=hh)
canvas.pack(fill=BOTH)

xc=360
yc=360
base=25
b2=int(0.866*2*base)
b3=b2/2

cubes = {}
points = []
c=0
c2=0

t = 'bg'
cubes[t] = {}

for yc in range(-base,hh,int(base*1.5)):
    for xc in range(-b2+(b3*(c%2)),ww+b2,b2):
        points += [(xc,yc)]
        c2+=1
    c+=1

while 1:
    xc,yc = choice(points)
    angle = choice([0,120,240])
    color = choice(['red','green','blue'])
    t = str([xc,yc,angle])
    try:
        canvas.delete(cubes[t])
        del cubes[t]
    except:
        create_tile()
        canvas.update()