asteroid.py

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


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

    def draw(self, screen):
        center = (self.position.x, self.position.y)
        pygame.draw.circle(screen, "white", center, 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

        log_event("asteroid_split")
        angle = random.uniform(20, 50)
        left_dir = self.velocity.rotate(angle)
        right_dir = self.velocity.rotate(-angle)
        new_radius = self.radius - ASTEROID_MIN_RADIUS

        p1 = Asteroid(self.position.x, self.position.y, new_radius)
        p1.velocity = left_dir * 1.2
        p2 = Asteroid(self.position.x, self.position.y, new_radius)
        p2.velocity = right_dir * 1.2