# Save as rocket.py
from math import *

class Rocket():
    # Rocket simulates a rocket ship for a game,
    #  or a physics simulation.
    
    def __init__(self, x=0, y=0):
        # Each rocket has an (x,y) position.
        self.x = x
        self.y = y
        
    def move_rocket(self, x_increment=0, y_increment=1):
        # Move the rocket according to the paremeters given.
        #  Default behavior is to move the rocket up one unit.
        self.x += x_increment
        self.y += y_increment
        
    def get_distance(self, other_rocket):
        # Calculates the distance from this rocket to another rocket,
        #  and returns that value.
        distance = sqrt((self.x-other_rocket.x)**2+(self.y-other_rocket.y)**2)
        return distance
    
    def __str__(self):
        return f"A Rocket positioned at ({self.x},{self.y})"

    def __repr__(self):
        return f"Rocket({self.x},{self.y})"
    
    def __eq__(self,other):

      result = (self.x == other.x) & (self.y == self.y)
      return result

    
class Shuttle(Rocket):
    # Shuttle simulates a space shuttle, which is really
    #  just a reusable rocket.
    
    def __init__(self, x=0, y=0, flights_completed=0):
        super().__init__(x, y)
        self.flights_completed = flights_completed

class circleRocket(Rocket) : 
    def __init__(self,x=0,y=0,r=0) :
        super().__init__(x,y)
        self.r = r 

    def get_area(r):
   
     return pi *(r**2 )
    
    def get_circumference(r):
    
      return 2*pi*r

print(circleRocket.get_circumference(2))
