#!/usr/bin/env python

from Tkinter import*
import random, time

def newlife():
    print 'New Life!'
    canvas.delete('all')
    condA=[[random.randrange(2) for x in range(n)] for y in range(n)]
    condB=[[0 for x in range(n)] for y in range(n)]
    for x in range(n):
        for y in range(n):
            if condA[x][y]:
                canvas.create_rectangle(x*d, y*d, (x+1)*d, (y+1)*d, width=2, fill='blue')
            else:
                canvas.create_rectangle(x*d, y*d, (x+1)*d, (y+1)*d, width=2, fill='green')
    return (condA, condB)

def life(condA, condB):
    generation=0
    print  'Generation =',generation
    while generation<10:
        generation+=1
        tk.update_idletasks()
        time.sleep(0.5)
        canvas.delete('all')
        for x in range(n):
            for y in range(n):
                env=0
                if x!=0 and y!=0:
                    env+=condA[x-1][y-1]
                if x!=n-1 and y!=n-1:
                    env+=condA[x+1][y+1]
                if x!=0 and y!=n-1:
                    env+=condA[x-1][y+1]
                if x!=n-1 and y!=1:
                    env+=condA[x+1][y-1]
                if x!=0:
                    env+=condA[x-1][y]
                if x!=n-1:
                    env+=condA[x+1][y]
                if y!=0:
                    env+=condA[x][y-1]
                if y!=n-1:
                    env+=condA[x][y+1]
                if env==3:
                    condB[x][y]=1
                    canvas.create_rectangle(x*d, y*d, (x+1)*d, (y+1)*d, width=2, fill='green')
                else:
                    condB[x][y]=0
                    canvas.create_rectangle(x*d, y*d, (x+1)*d, (y+1)*d, width=2, fill='blue')
        print 'Generation =',generation
        listcompare=0
        for x in range(n):
            for y in range(n):
                if condA[x][y]!=condB[x][y]:listcompare+=1
        if listcompare==0:break
#       condA=condB
        condA=[[condB[x][y] for x in range(n)]for y in range(n)]

def start():
    condA,condB=newlife()
    life(condA,condB)

def close():
    quit()

n,d = 10,15

tk = Tk()
frame = Frame(tk, relief=RIDGE, borderwidth=2)
frame.pack(fill=BOTH,expand=1)
canvas = Canvas(frame, width=n*d+2, height=n*d+2, bg='white')
canvas.pack(expand=NO, fill=BOTH)
button = Button(frame,text="Start",command=start)
button.pack(side=LEFT)
button=Button(frame, text="Close", command=close)
button.pack(side=LEFT)
tk.mainloop()