# File: ChapterGraphics/polygonBuild.py
# Asks for a list of Points and draws a polygon 

from graphics import *

def main():
    # win.setCoords( 0, 0, 500, 500 )
    L = []	#list of Points is empty
    ans ='y'
    while ( ans == 'y' ):
      x = input( "Point x? " )
      y = input( "Point y? " )
      P = Point(x,y)       
      L.append( P )
      ans = input( "Continue(y/n)? " )
        
    win = GraphWin( "Build a Polygon", 500, 500  )
    shape = Polygon(L)
    shape.setFill( "green" )
    shape.draw( win )

main()