main.py

import pygame

from constants import SCREEN_HEIGHT, SCREEN_WIDTH
from player import Player
from asteroid import Asteroid
from asteroidfield import AsteroidField
from shot import Shot


def main():
    print("Starting asteroids!")
    print(f"Screen width: {SCREEN_WIDTH}")
    print(f"Screen height: {SCREEN_HEIGHT}")

    pygame.init()

    dt = 0
    screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
    clock = pygame.time.Clock()

    # Groups
    updatable = pygame.sprite.Group()
    drawable = pygame.sprite.Group()
    asteroids = pygame.sprite.Group()
    shots = pygame.sprite.Group()

    Player.containers = (updatable, drawable)
    Asteroid.containers = (updatable, drawable, asteroids)
    AsteroidField.containers = updatable
    Shot.containers = (updatable, drawable, shots)
    player = Player(SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2)
    asteroid_field = AsteroidField()

    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return

        screen.fill(color="black")

        for obj in drawable:
            obj.draw(screen)

        for up in updatable:
            up.update(dt)

        for asteroid in asteroids:
            if asteroid.collides(player):
                print("Game Over!")
                exit()

            for shot in shots:
                if shot.collides(asteroid):
                    asteroid.split()
                    shot.kill()

        pygame.display.flip()

        dt = clock.tick(60) / 1000


if __name__ == "__main__":
    main()