#
#hic-cup!
#the smooth flow betweent the two squares is disturbed by a hiccup
#
g.norefresh()
while 1:
 g.paper(0)
 g.pen(100)
  
 t1=30+g.getTime(3)/2
 side1=((g.getTime(4)+g.getTime(3))/2)/4-5
 x1 = t1- side1
 y1 = 100-side1 -t1
 x2 = t1 + side1
 y2 = 100+side1 -t1
 g.field(x1, y1, x2, y2,100)
 
 t2=(30+g.getTime(3)/2)+10
 side2=15-(g.getTime(4)+g.getTime(3))/8
 x1 = t2 - side2
 y1 = 100 -side2 -t2
 x2 = t2 +side2 
 y2 = 100+side2 -t2
 g.field(x1,y1,x2,y2,100)
   
 g.refresh()