func_code: def overlap(d1=0, d2=0, d3=1, d4=0, d5=0, d6=1):
      import math
      r = d3 + d6
      x = (d1 - d4) ** 2
      y = (d2 - d5) ** 2
      d = x + y
      d = math.sqrt(d)
      if r > d:
          return True
      else:
          return False