from graphics import *

from math import *

def gobangwin():

    win=GraphWin("this is a gobang game",400,400) #ÖÆ×÷21x21µÄÆåÅÌ

    win.setBackground("yellow")

    i1=0

    while i1<401:

        l=Line(Point(i1,0),Point(i1,400))

        l.draw(win)

        i1=i1+20

    i2=0

    while i2<401:

        l=Line(Point(0,i2),Point(400,i2))

        l.draw(win)

        i2=i2+20

    return win

def main():

    win = gobangwin()

    list1 = []

    list2 = []

    list3 = []

    change = 0

    g = 0

    m=0

    n=0

    while g == 0:

       if change%2 == 1:

        p1 = win.getMouse()

        if not ((round((p1.getX()+10)/20),round((p1.getY()+10)/20)) in list3):

             a1 = round((p1.getX()+10)/20)

             b1 = round((p1.getY()+10)/20)

             list1.append((a1,b1))

             list3.append((a1,b1))

             piece = Circle(Point(20*a1,20*b1),8) #´´½¨Æå×Ó

             piece.setFill('white')

             piece.draw(win)

             for m in range(21): #ÅжÏÊäÓ®

                 for n in range(21):

                         if n<17 and (m,n) in list1 and (m,n+1) in list1 and (m,n+2) in list1 and (m,n+3) in list1 and (m,n+4) in list1 :

                             message = Text(Point(100,100),"white win.")

                             message.draw(win)

                             g = 1     #Åжϰ×ÆåÊúÐÐ

                         elif m<17 and  (m,n) in list1 and (m+1,n) in list1 and (m+2,n) in list1 and (m+3,n) in list1 and (m+4,n) in list1 :

                             message = Text(Point(100,100),"white win.")

                             message.draw(win)

                             g = 1   #Åжϰ×ÆåºáÐÐ

                         elif m<17 and n<17 and (m,n) in list1 and (m+1,n+1) in list1 and (m+2,n+2) in list1 and (m+3,n+3) in list1 and (m+4,n+4) in list1 :

                             message = Text(Point(100,100),"white win.")

                             message.draw(win)

                             g = 1    #Åжϰ×ÆåбÐÐ

                         elif m<17 and n>3 and (m,n) in list1 and (m+1,n-1) in list1 and (m+2,n-2) in list1 and (m+3,n-3) in list1 and (m+4,n-4) in list1 :

                             message = Text(Point(100,100),"white win.")

                             message.draw(win)

                             g = 1     #Åжϰ×ÆåбÐÐ

                         else: change = change+1  #»»ºÚÆå×ß

       else:

        p2 = win.getMouse()

        if not ((round((p2.getX()+10)/20),round((p2.getY()+10)/20)) in list3):

               a2 = round((p2.getX()+10)/20)

               b2 = round((p2.getY()+10)/20)

               list2.append((a2,b2))

               list3.append((a2,b2))

               piece = Circle(Point(20*a2,20*b2),8)

               piece.setFill('black')

               piece.draw(win)

               for m in range(21):

                 for n in range(21):

                         if n<17 and (m,n) in list2 and (m,n+1) in list2 and (m,n+2) in list2 and (m,n+3) in list2 and (m,n+4) in list2 :

                             message = Text(Point(100,100),"black win.")

                             message.draw(win)

                             g = 1    #ÅжϺÚÆåÊúÐÐ

                         elif m<17 and  (m,n) in list2 and (m+1,n) in list2 and (m+2,n) in list2 and (m+3,n) in list2 and (m+4,n) in list2 :

                             message = Text(Point(100,100),"black win.")

                             message.draw(win)

                             g = 1  #ÅжϺÚÆåºáÐÐ

                         elif m<17 and n<17 and (m,n) in list2 and (m+1,n+1) in list2 and (m+2,n+2) in list2 and (m+3,n+3) in list2 and (m+4,n+4) in list2 :

                             message = Text(Point(100,100),"black win.")

                             message.draw(win)

                             g = 1   #ÅжϺÚÆåбÐÐ

                         elif m<17 and n>3 and (m,n) in list2 and (m+1,n-1) in list2 and (m+2,n-2) in list2 and (m+3,n-3) in list2 and (m+4,n-4) in list2 :

                             message = Text(Point(100,100),"black win.")

                             message.draw(win)

                             g = 1   #ÅжϺÚÆåбÐÐ

                         else: change = change+1  #»»°×Æå×ß

    message = Text(Point(100,120),"Click anywhere to quit.")

    message.draw(win)

    win.getMouse()

    win.close()

main()