#*********************vspiral.py*************************
#
# William Baker
#
#  usage:   python vspiral.py --iterations x --percentage y
#
#  where:
#
#          x = number of iterations (integer)
#          y = percentage expressed as a decimal (i.e. .5 not 50)
#*********************************************************

from visual import *
from math import *
from getopt import *
import sys


numboxes=10
percentage=.5



def draw():
    global numboxes, percentage
    
   
    
    
    corner1=[-5.0,-5.0]
    corner2=[5.0,-5.0]
    corner3=[5.0,5.0]
    corner4=[-5.0,5.0]
    


    for j in range(0,numboxes):
        curve(pos=[(corner1[0],corner1[1],0),
                ((corner1[0]*(1-percentage)+corner2[0]*percentage), 
                (corner1[1]*(1-percentage)+corner2[1]*percentage),0)], color=(0,1,1))
        


        curve(pos=[((corner1[0]*(1-percentage)+corner2[0]*percentage), 
                (corner1[1]*(1-percentage)+corner2[1]*percentage),0),
                (corner2[0],corner2[1],0),(corner3[0],corner3[1],0),
                (corner4[0],corner4[1],0),(corner1[0],corner1[1],0)], color=(.75,.75,.75))
                
   
       
    

        temp1=[(corner1[0]*(1-percentage)+corner2[0]*percentage),
                  (corner1[1]*(1-percentage)+corner2[1]*percentage)]
        temp2=[(corner2[0]*(1-percentage)+corner3[0]*percentage),
                  (corner2[1]*(1-percentage)+corner3[1]*percentage)]
        temp3=[(corner3[0]*(1-percentage)+corner4[0]*percentage),
                  (corner3[1]*(1-percentage)+corner4[1]*percentage)]
        temp4=[(corner4[0]*(1-percentage)+corner1[0]*percentage),
                  (corner4[1]*(1-percentage)+corner1[1]*percentage)]

        corner1=temp1
        corner2=temp2
        corner3=temp3
        corner4=temp4


def main():
   global numboxes, percentage 
   try:
       opts, args = getopt(sys.argv[1:],"",['iterations=',
               'percentage='])
   except GetoptError:
       sys.exit(1)

   numboxes=int((opts[0])[1])
   percentage=float((opts[1])[1])

   
   draw()

main()