main.py

# this allows us to use code from
# the open-source pygame library
# throughout this file
import pygame
import sys
from constants import *
from player import Player
from asteroid import Asteroid
from asteroidfield import AsteroidField
from shot import Shot


def main():
    pygame.init()
    clock = pygame.time.Clock()
    screen = pygame.display.set_mode((SCREEN_WIDTH, SCREEN_HEIGHT))
    
    # Create groups for object to eliminate clutter in loop
    updatable = pygame.sprite.Group()
    drawable = pygame.sprite.Group()
    asteroids = pygame.sprite.Group()
    shots = pygame.sprite.Group()

    Shot.containers = (updatable, drawable, shots)
    Asteroid.containers = (updatable, drawable, asteroids)
    AsteroidField.containers = updatable
    asteroid_field = AsteroidField()

    Player.containers = (updatable, drawable)
    player = Player(SCREEN_WIDTH / 2, SCREEN_HEIGHT / 2)

    dt = 0
    
    print("Starting Asteroids!")
    print("Screen width:", SCREEN_WIDTH)
    print("Screen height:", SCREEN_HEIGHT)
    
    while True:
        for event in pygame.event.get():
            if event.type == pygame.QUIT:
                return
            
        # Update all objects in the updatable group
        updatable.update(dt)
        
        # Check for collisions with asteroids
        for asteroid in asteroids:
            if asteroid.collides_with(player):
                print("Game Over!")
                sys.exit()
                # Handle collision (e.g., end game, reduce health, etc.)

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

        screen.fill((0,0,0))

        # Draw all objects in the drawable group
        for obj in drawable:
            obj.draw(screen)

        pygame.display.flip()
        
        # liimit the frame rate to 60 fps
        dt = clock.tick(60) / 1000
    
    


if __name__=="__main__":
    main()