asteroid.py

import pygame
import random
from logger import log_event
from circleshape import CircleShape
from constants import ASTEROID_MIN_RADIUS, LINE_WIDTH

class Asteroid(CircleShape):
    def __init__(self, x,y,radius):
        super().__init__(x,y, radius)

    def draw(self, screen):
        pygame.draw.circle(screen, "white", self.position, self.radius, LINE_WIDTH)

    def update(self, dt):
        self.position+= self.velocity * dt

    def split(self):
        self.kill()

        if self.radius<ASTEROID_MIN_RADIUS  :
            return

        else:
            log_event("asteroid_split")
            angle= random.uniform(20,50)
            velocity1= self.velocity.rotate(angle)
            velocity2 = self.velocity.rotate(-angle)
            radius= self.radius - ASTEROID_MIN_RADIUS

            asteroid1 = Asteroid(self.position.x, self.position.y, radius)
            asteroid1.velocity= velocity1*1.2

            asteroid2= Asteroid(self.position.x, self.position.y,radius)
            asteroid2.velocity= velocity2*1.2