main.py

import sys
import pygame
from pygame.sprite import Group
from settings import Settings
from game_stats import GameStats
from scoreboard import Scoreboard
from button import Button
from ship import Ship
from alien import Alien
import game_functions as gf
import asyncio

async def main():
    # Initialize game and create a screen object.
    # initialize pygame, settings, and screen object.
    pygame.init()
    ai_settings = Settings()
    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))
    # screen = pygame.display.set_mode((1200,800))
    pygame.display.set_caption("Alien Invasion")

    # make the play button
    play_button = Button(ai_settings,screen,"Play")

    # create an instance to store game statistics.
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings,screen,stats)
    # make a ship.
    ship = Ship(ai_settings, screen)
    # make a group to store bullets in.
    bullets = Group()
    aliens = Group()

    # create  the fleet of aliens
    gf.create_fleet(ai_settings, screen, ship, aliens)

    # set the background color.
    bg_color = (230, 230, 230) # light gray background color.

    # make an alien.
    alien = Alien(ai_settings, screen)


    # start the main loop for the game.
    while True:
        gf.check_events(ai_settings, screen, stats, sb, play_button, ship,aliens, bullets)
        if stats.game_active:
            ship.update()
            gf.update_bullets(ai_settings, screen,stats, sb, ship, aliens, bullets)
            gf.update_aliens(ai_settings, stats, screen, sb, ship, aliens, bullets)
            
        gf.update_screen(ai_settings, screen,stats, sb, ship, aliens, bullets, play_button)
        
        await asyncio.sleep(0)

asyncio.run(main())