def intersection_with_asteroid_torpedo(self, asteroid, torpedo):
'''
:param asteroid: An asteroid on the screen
:param torpedo: A torpedo fired from the ship
:return: Deals with the occurrence where a torpedo hits an asteroid
'''
if asteroid.get_life() > 1: # If the asteroid's life is greater than 1, then it divides into two smaller asteroids
x_torpedo, y_torpedo = torpedo.get_speed()
x_asteroid, y_asteroid = asteroid.get_speed()
speed_x = (x_torpedo + x_asteroid) / math.sqrt(x_asteroid ** 2 + y_asteroid ** 2)
speed_y = (y_torpedo + y_asteroid) / math.sqrt(x_asteroid ** 2 + y_asteroid ** 2)
new_speed1 = speed_x, speed_y
temp_asteroid1 = Asteroid(asteroid.get_location(), new_speed1, asteroid.get_life() - 1)
new_speed2 = -speed_x, -speed_y
temp_asteroid2 = Asteroid(asteroid.get_location(), new_speed2, asteroid.get_life() - 1)
self._screen.unregister_asteroid(asteroid)
self._asteroid_list.remove(asteroid)
self._asteroid_list.append(temp_asteroid1)
self._asteroid_list.append(temp_asteroid2)
self._screen.register_asteroid(temp_asteroid1, temp_asteroid1.get_life())
x_location1, y_location1 = temp_asteroid1.get_location()
self._screen.draw_asteroid(temp_asteroid1, x_location1, y_location1)
self._screen.register_asteroid(temp_asteroid2, temp_asteroid2.get_life())
x_location2, y_location2 = temp_asteroid2.get_location()
self._screen.draw_asteroid(temp_asteroid2, x_location2, y_location2)
else: # Else, it disappears
self._screen.unregister_asteroid(asteroid)
self._asteroid_list.remove(asteroid)
def split_ast(self, ast, torp):
astro = self.__asteroid_dict[ast]
torpy = self.__torpedo_dict[torp]
new_speed_x = (torpy.get_speed(X) + astro.get_speed(X)) / math.sqrt(
astro.get_speed(X)**2 + astro.get_speed(Y)**2)
new_speed_y = (torpy.get_speed(Y) + astro.get_speed(Y)) / math.sqrt(
astro.get_speed(X)**2 + astro.get_speed(Y)**2)
new_size = astro.get_size() - 1
ast_1 = Asteroid(astro.get_location(X), astro.get_location(Y),
new_speed_x, new_speed_y, new_size)
ast_2 = Asteroid(astro.get_location(X), astro.get_location(Y),
-1 * new_speed_x, -1 * new_speed_y, new_size)
self.__screen.unregister_asteroid(astro)
self.__screen.unregister_torpedo(torpy)
del self.__asteroid_dict[ast]
del self.__torpedo_dict[torp]
self.__asteroid_dict[self.__asteroid_counter + 1] = ast_1
self.__asteroid_counter += 1
self.__asteroid_dict[self.__asteroid_counter + 1] = ast_2
self.__asteroid_counter += 1
self.__screen.register_asteroid(ast_1, new_size)
self.__screen.register_asteroid(ast_2, new_size)
self.__screen.draw_asteroid(ast_1, ast_1.get_location(X),
ast_1.get_location(Y))
self.__screen.draw_asteroid(ast_2, ast_2.get_location(X),
ast_2.get_location(Y))
