Inheritance Practice

Complete the Siege, BatteringRam, and Catapult classes:

1. Complete the Siege class:
   1. Complete the constructor. It accepts two parameters (in order) and sets them as public instance variables with the same name: max_speed and efficiency
   2. Complete the get_trip_cost(self, distance: int, food_price: int) -> float method. It calculates the cost of a trip and returns it. The formula for calculating the cost is: (distance / efficiency) * food_price. It costs food to move siege weapons, those things are heavy!
   3. Leave the get_cargo_volume(self) -> float | None method as empty. Use the pass keyword. Child classes will override this method.
2. Complete the BatteringRam class:
   1. Complete the constructor. It calls the parent constructor, then sets the extra battering-ram-only instance variables as member variables.
   2. The get_trip_cost(self, distance: int, food_price: int) -> float method uses the parent get_trip_cost() method to calculate and return the cost of food for a trip, plus the extra cost of carrying a load. The formula for calculating the cost: super().get_trip_cost(distance, food_price) + (load_weight * 0.01)
   3. The get_cargo_volume(self) -> float method calculates and returns the cargo capacity in cubic meters. To get the volume of the battering-ram's 'cargo' (bed_area), multiply its area by its depth, which is always 2 meters.
3. Complete the Catapult class:
   1. The constructor calls the parent constructor, then sets the extra catapult-only instance variable as a member variable.
   2. Do not override the get_trip_cost(self, distance: int, food_price: int) -> float method. It's inherited from the parent class.
   3. The get_cargo_volume(self) -> int method just returns the cargo capacity of the catapult. This is already set by the constructor.

The super() function gives you access to the parent class, so you can call its constructor and any of its other methods:

class Child(Parent):
    def some_method(self, x: int) -> int:
        base = super().some_method(x)
        return base + 1