func_code: def overlap(x1=0, y1=0, r1=1, x2=0, y2=0, r2=1):
      item1 = (x2 - x1) ** 2
      item2 = (y2 - y1) ** 2
      item3 = item1 + item2
      distance = item3 ** (1 / 2)
      radiusd = r1 + r2
      if distance < radiusd:
          return True
      else:
          return False