本文共 7538 字，大约阅读时间需要 25 分钟。

• 安装pygame包，把安装好的包copy一份到pycharm工程目录下，不然找不到pygame包
  
  抄一遍书上的代码：

class Settings():    def __init__(self):        self.screen_width = 1200        self.screen_height = 800        self.bg_color = (255, 255, 255)        self.ship_speed_factor = 1.5

import pygameclass Ship():    def __init__(self, ai_settings, screen):        self.screen = screen        self.ai_settings = ai_settings        self.image = pygame.image.load("images/ship.bmp")        self.rect = self.image.get_rect()   #图像矩形        self.screen_rect = screen.get_rect()    #屏幕矩形，左上角原点，右下角如1200,800        self.rect.centerx = self.screen_rect.centerx    #图像x中心，在屏幕中心        self.rect.bottom = self.screen_rect.bottom  #图像底边，在屏幕底边        self.center = float(self.rect.centerx)  #图像x中心坐标转成浮点型，存在center中        self.moving_right = False        self.moving_left = False    def update(self):        if self.moving_right and self.rect.right < self.screen_rect.right:  #限制位置在屏幕内            self.center += self.ai_settings.ship_speed_factor        if self.moving_left and self.rect.left > 0:            self.center -= self.ai_settings.ship_speed_factor        self.rect.centerx = self.center    def blitme(self):        self.screen.blit(self.image, self.rect) #blit实现动画效果

game_functions.py

import sysimport pygamedef check_keydown_events(event, ship):  #检测键盘按下事件    if event.key == pygame.K_RIGHT:        ship.moving_right = True    elif event.key == pygame.K_LEFT:        ship.moving_left = Truedef check_keyup_events(event, ship):    #检测键盘松开事件    if event.key == pygame.K_RIGHT:        ship.moving_right = False    elif event.key == pygame.K_LEFT:        ship.moving_left = Falsedef check_events(ship):    for event in pygame.event.get():        if event.type == pygame.QUIT:   #退出事件            sys.exit()        elif event.type == pygame.KEYDOWN:  #键盘按下事件            check_keydown_events(event, ship)        elif event.type == pygame.KEYUP:    #键盘松开事件            check_keyup_events(event, ship)def update_screen(ai_settings, screen, ship):    screen.fill(ai_settings.bg_color)   #屏幕填充背景色    ship.blitme()   #ship的动画效果    pygame.display.flip()   #让动画尽可能流畅

alien_invasion.py

import sysimport pygamefrom settings import Settingsfrom ship import Shipimport game_functions as gfdef run_game():    pygame.init()    ai_settings = Settings()    #创建游戏设置    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))    pygame.display.set_caption("Alien Invasion")    #设置标题    ship = Ship(ai_settings, screen)    #创建游戏对象    while True:        gf.check_events(ship)   #检测事件        ship.update()   #更新ship位置        gf.update_screen(ai_settings, screen, ship) #刷新屏幕run_game()

import pygameimport sysdef check_events(screen):    for event in pygame.event.get():        if event.type == pygame.QUIT:   #退出事件            sys.exit()        elif event.type == pygame.KEYDOWN:  #键盘按下事件            while True:                font = pygame.font.SysFont("宋体", 80)    #设置字体                font_surface = font.render(str(event.key), True, (0, 0, 0), (255, 255, 255))    #渲染内容为面                pygame.image.save(font_surface, "text.bmp") #面保存成图片                image = pygame.image.load("text.bmp")   #获取图片                image_rect = image.get_rect()   #获取图片的矩形                image_rect.centerx = 200    #设置图片矩形位置                image_rect.centery = 150                screen.blit(image, image_rect)  #屏幕呈现该图片                pygame.display.flip()   #屏幕刷新显示出来                if pygame.event.poll().type == pygame.KEYUP:    #键盘松开                    break   #退出def run_game():    pygame.init()    pygame.font.init()    screen = pygame.display.set_mode((400, 300))    pygame.display.set_caption("测试按键......")    #设置标题    while True:        screen.fill((255, 255, 255))  # 屏幕填充背景色        pygame.display.flip()   #刷新屏幕        check_events(screen)   #检测事件run_game()

class Settings():    def __init__(self):        self.screen_width = 1200        self.screen_height = 800        self.bg_color = (255, 255, 255)        self.ship_speed_factor = 1.5    #飞船速度        self.bullet_speed_factor = 1    #子弹速度        self.bullet_width = 3           #子弹宽高        self.bullet_height = 15        self.bullet_color = 60, 60, 60  #子弹颜色        self.bullets_allowed = 2        #屏幕中允许的子弹数量

不变

import pygamefrom pygame.sprite import Spriteclass Bullet(Sprite):    def __init__(self, ai_settings, screen, ship):        super().__init__()        self.screen = screen        self.rect = pygame.Rect(0, 0, ai_settings.bullet_width,                                ai_settings.bullet_height)  #绘制子弹的矩形        self.rect.centerx = ship.rect.centerx   #子弹x与飞船相同        self.rect.top = ship.rect.top   #子弹从飞船顶部起飞        self.y = float(self.rect.y)     # y存一份浮点的，可以精调位置        self.color = ai_settings.bullet_color   #子弹颜色        self.speed_factor = ai_settings.bullet_speed_factor #子弹速度    def update(self):        self.y -= self.speed_factor #位置更新        self.rect.y = self.y    #浮点y位置付给矩形图形    def draw_bullet(self):        pygame.draw.rect(self.screen, self.color, self.rect)    #把子弹矩形画到屏幕上

game_functions.py

import sysimport pygamefrom bullet import Bulletdef fire_bullet(ai_settings, screen, ship, bullets):    #发射子弹    if len(bullets) < ai_settings.bullets_allowed:  #子弹没超数量        new_bullet = Bullet(ai_settings, screen, ship)  #生成新子弹        bullets.add(new_bullet)     #新子弹加入组def check_keydown_events(event,ai_settings, screen, ship, bullets):  #检测键盘按下事件    if event.key == pygame.K_RIGHT:        ship.moving_right = True    elif event.key == pygame.K_LEFT:        ship.moving_left = True    elif event.key == pygame.K_SPACE:   #按下空格键，发射子弹        fire_bullet(ai_settings, screen, ship, bullets)def check_keyup_events(event, ship):    #检测键盘松开事件    if event.key == pygame.K_RIGHT:        ship.moving_right = False    elif event.key == pygame.K_LEFT:        ship.moving_left = Falsedef check_events(ai_settings, screen, ship, bullets):    for event in pygame.event.get():        if event.type == pygame.QUIT:   #退出事件            sys.exit()        elif event.type == pygame.KEYDOWN:  #键盘按下事件            check_keydown_events(event, ai_settings, screen, ship, bullets)        elif event.type == pygame.KEYUP:    #键盘松开事件            check_keyup_events(event, ship)def update_screen(ai_settings, screen, ship, bullets):    screen.fill(ai_settings.bg_color)   #屏幕填充背景色    for bullet in bullets.sprites():    #把每个子弹画在屏幕上        bullet.draw_bullet()    ship.blitme()   #ship的动画效果    pygame.display.flip()   #刷新，让动画尽可能流畅def update_bullets(bullets):    bullets.update()    #更新子弹位置    for bullet in bullets.copy():   #删除飞出屏幕的子弹        if bullet.rect.bottom <= 0:            bullets.remove(bullet)

alien_invasion.py

import sysimport pygamefrom settings import Settingsfrom ship import Shipimport game_functions as gffrom pygame.sprite import Groupdef run_game():    pygame.init()    ai_settings = Settings()    #创建游戏设置    screen = pygame.display.set_mode((ai_settings.screen_width, ai_settings.screen_height))    pygame.display.set_caption("Alien Invasion")    #设置标题    ship = Ship(ai_settings, screen)    #创建游戏飞船对象    bullets = Group()   #创建子弹组    while True:        gf.check_events(ai_settings, screen, ship, bullets)   #检测事件        ship.update()   #更新ship位置        gf.update_bullets(bullets)  #更新子弹位置，删除飞出去的子弹        # print(len(bullets))   #调试时，确认子弹飞出屏幕后被删除        gf.update_screen(ai_settings, screen, ship, bullets) #刷新屏幕run_game()

转载地址：https://michael.blog.csdn.net/article/details/89496636 如侵犯您的版权，请留言回复原文章的地址，我们会给您删除此文章，给您带来不便请您谅解！