Python打飞机小游戏

环境

操作系统：windows10

pycharm:2017.3

python:3.6

pygame:1.9.3

实现功能

代码

alien_invasion.py

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
import game_functions as gf

def run_game():

    pygame.init()
    ai_settings = Settings()

    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))
    pygame.display.set_caption("Alien Invasion")

    # 创建play按钮
    play_button = Button(ai_settings, screen, 'play')

    # 创建一个用于存储游戏统计信息的实例,并创建记分牌
    stats = GameStats(ai_settings)
    sb = Scoreboard(ai_settings, screen, stats)

    #创建一艘飞船，一个子弹编组和一个外星人编组
    ship = Ship(ai_settings, screen)

    #创建一个用于存储子弹的编组
    bullets = Group()
    aliens = Group()

    #创建外星人群
    gf.create_fleet(ai_settings, screen, ship, aliens)

    #开始游戏主循环
    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, screen, stats, sb, ship, aliens, bullets)

        gf.update_screen(ai_settings, screen, stats, sb, ship, aliens, bullets, play_button)



run_game()

game_functions.py

import sys
from time import sleep
import pygame
from bullet import Bullet
from alien import Alien



def check_keydown_events(event, ai_settings, screen, ship, bullets):
    """响应按键"""
    if event.key == pygame.K_RIGHT:
        # 向右移动飞船
        ship.moving_right = True
    elif event.key == pygame.K_LEFT:
        ship.moving_left = True
    elif event.key == pygame.K_SPACE:
        fire_bullet(ai_settings, screen, ship, bullets)
    elif event.key == pygame.K_q:
        sys.exit()



def fire_bullet(ai_settings, screen, ship, bullets):
    """如果还没有达到限制，就发射一颗子弹"""
    #创建一颗子弹，并将其加入到编组bullets中
    if len(bullets) < ai_settings.bullets_allowed:
        new_bullet = Bullet(ai_settings, screen, ship)
        bullets.add(new_bullet)



def check_keyup_events(event, ship):

    """响应松开"""
    if event.key == pygame.K_RIGHT:
        ship.moving_right = False
    elif event.key == pygame.K_LEFT:
        ship.moving_left = False



def check_events(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets):
    """响应按键和鼠标事件"""
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            sys.exit()

        elif event.type == pygame.KEYDOWN:
            check_keydown_events(event, ai_settings, screen, ship, bullets)

        elif event.type == pygame.KEYUP:
            check_keyup_events(event, ship)

        elif event.type == pygame.MOUSEBUTTONDOWN:
            mouse_x, mouse_y = pygame.mouse.get_pos()
            check_play_button(ai_settings, screen, stats, sb, play_button, ship, aliens,  bullets, mouse_x, mouse_y)

def check_play_button(ai_settings, screen, stats, sb, play_button, ship, aliens, bullets, mouse_x, mouse_y):
    """在玩家单击play按钮时开始新游戏"""
    button_clicked = play_button.rect.collidepoint(mouse_x, mouse_y)
    if button_clicked and not stats.game