做飞机大战之前，需要完成以下条件

首先：需要安装pygame模块

安装pygame：

     sudo pip3 install pygame

验证安装：

python3 -m pygame.examples.aliens

其次：一个编辑器，本人用的是sublime

代码块

精灵类---plane_simport pygame
import random

定时器常量

  CREATE_ENEMY_EVENT = pygame.USEREVENT

  SCREEN_RECT = pygame.Rect(0, 0, 1000, 500)
  class GameSprite(pygame.sprite.Sprite):

    def __init__(self,image_url,new_speed=1):
    super().__init__()
    self.image = pygame.image.load(image_url)
    self.rect = self.image.get_rect()
    self.speed = new_speed

    def update(self,*args):
    #默认水平方向移动
    self.rect.x -= self.speed

游戏背景精灵

    class Background(GameSprite):
         def __init__(self,is_alt=False):
         super().__init__("/home/lzb/images/yyy.png")
        if is_alt:
           self.rect.left = self.rect.width
    def update(self):
    self.rect.x -= self.speed
    #判断是否移出屏幕 如果移出 将图像设置到屏幕方
    if self.rect.x <=  -self.rect.width:
        self.rect.left = self.rect.width

敌机精灵

 class Enemy(GameSprite):
    def __init__(self):

    super().__init__("/home/lzb/images/enemy1.png")
    #随机速度
    self.speed = random.randint(10, 15)
    #设置敌机的初始位置
    self.rect.left = SCREEN_RECT.width
    max_ = SCREEN_RECT.height -self.rect.height
    self.rect.bottom = random.randint(0, max_)

def update(self):
    
    panduan = random.randint(0, 1)
    if panduan == 0:
        self.rect.y -= self.speed
        self.rect.x -= self.speed
    else:
        self.rect.y += self.speed
        self.rect.x -= self.speed
    #判断敌机是否飞出屏幕  如果飞出屏幕将敌机从精灵组删除
    if self.rect.y >= SCREEN_RECT.height or self.rect.right <=0 or self.rect.bottom <=0:
        self.kill()

英雄精灵

class Hero(GameSprite):

def __init__(self):
    super().__init__("/home/lzb/images/me1.png")

    self.rect.centery = SCREEN_RECT.centery+100
    self.rect.left = SCREEN_RECT.y
    self.move = True
    #子弹精灵组
    self.bullets_group = pygame.sprite.Group()
def update(self):
    #super().update()
    if not self.move:
        self.rect.x += self.speed
    else:
        self.rect.y += self.speed

    #self.rect.y += self.speed
    #飞机飞出屏幕
    if self.rect.bottom <= 0:
        self.rect.y = self.rect.bottom+SCREEN_RECT.height
    elif self.rect.y >= SCREEN_RECT.height:
        self.rect.y = -self.rect.height

    if self.rect.right <= 0:
        self.rect.x = self.rect.right+SCREEN_RECT.width
    elif self.rect.x >= SCREEN_RECT.width:
        self.rect.x = -self.rect.width
def fire(self):
    for i in (1,2,3):
        #创建子弹精灵
        bullet1 = Bullet()
        bullet2 = Bullet()
        bullet3 = Bullet()
        #设置子弹精灵的位置
        bullet1.rect.left = (self.rect.x+120)+i*20
        bullet1.rect.centery = self.rect.centery

        bullet2.rect.left = (self.rect.x+70)+i*20
        bullet2.rect.centery = self.rect.centery+32

        bullet3.rect.left = (self.rect.x+70)+i*20
        bullet3.rect.centery = self.rect.centery-32
        #将子弹精灵添加到精灵组
        self.bullets_group.add(bullet1,bullet2,bullet3)

英雄精灵

class Hero_Two(GameSprite):

def __init__(self):
    super().__init__("/home/lzb/images/life.png")
    self.rect.centery = SCREEN_RECT.centery-100
    self.rect.left = SCREEN_RECT.y
    self.Move = True
    #子弹精灵组
    self.bullet_group = pygame.sprite.Group()
def update(self):
    #super().update()
    if not self.Move:
        self.rect.x += self.speed
    else:
        self.rect.y += self.speed

    #self.rect.y += self.speed
    #飞机飞出屏幕
    if self.rect.bottom <= 0:
        self.rect.y = self.rect.bottom+SCREEN_RECT.height
    elif self.rect.y >= SCREEN_RECT.height:
        self.rect.y = -self.rect.height

    if self.rect.right <= 0:
        self.rect.x = self.rect.right+SCREEN_RECT.width
    elif self.rect.x >= SCREEN_RECT.width:
        self.rect.x = -self.rect.width
def fire(self):
    for i in (1,2,3):
        #创建子弹精灵
        bullet2 = Bullet()
        bullet3 = Bullet()
        #设置子弹精灵的位置

        bullet2.rect.left = (self.rect.x)+i*20
        bullet2.rect.centery = self.rect.centery+20

        bullet3.rect.left = (self.rect.x)+i*20
        bullet3.rect.centery = self.rect.centery-20
        #将子弹精灵添加到精灵组
        self.bullet_group.add(bullet2,bullet3)

子弹精灵

 class Bullet(GameSprite):
      def __init__(self):
           super().__init__("/home/lzb/images/bullet2.png")

def update(self):
    # panduan = random.randint(0, 1)
    # if panduan == 0:
    #   self.rect.y -= 5
    #   self.rect.x += 5
    # else:
    #   self.rect.y += 5
    #   self.rect.x += 5
    self.rect.x += 30
    if self.rect.left >= SCREEN_RECT.width :

        self.kill()

游戏主类---plan_main

   import pygame
   from plane_sprites import *
   HERO_FIRE_EVENT = pygame.USEREVENT+1

音乐

  pygame.init()
  pygame.mixer.music.load("/home/lzb/images/Alan Walker - Sky.mp3")
  pygame.mixer.music.play(loops=-1)
  class PlaneGame(object):

def __init__(self):
    #创建游戏窗口
    self.screen = pygame.display.set_mode((SCREEN_RECT.size))
    #游戏时钟
    self.clock = pygame.time.Clock()
    #创建精灵和精灵组
    self.__create_sprites()
    pygame.display.set_caption("灰机大战")
    #设置一个定时器事件  每一秒钟创建一架敌机
    pygame.time.set_timer(CREATE_ENEMY_EVENT, 300)
    #子弹发射速度
    pygame.time.set_timer(HERO_FIRE_EVENT, 800)
def start_game(self):
    while True:
        #1.刷新帧率
        self.clock.tick(200)
        #2.监听事件
        self.__handler_event()
        #3.碰撞检测b
        self.__check_collide()
        #4.更新精灵和精灵组
        self.__update_sprites()
        #5.刷新屏幕
        pygame.display.update()
#创建精灵和精灵组
def __create_sprites(self):

    bg1 = Background()
    bg2 = Background(True)
    self.hero = Hero()
    self.hero2 = Hero_Two()
    #英雄精灵组
    self.hero_group = pygame.sprite.Group(self.hero,self.hero2)
    #背景精灵组#调用父类的方法 让敌机在水平方向运动
    self.bg_group = pygame.sprite.Group(bg1,bg2)
    #敌机精灵组
    self.diji_group = pygame.sprite.Group()

#监听事件
def __handler_event(self):
    for event in pygame.event.get():
        keys_pressed = pygame.key.get_pressed()
        
        #控制飞机移动
        if keys_pressed[276]:
            self.hero.move = False
            self.hero.speed = -7
        elif keys_pressed[275]:
            self.hero.move = False
            self.hero.speed = 7
        elif keys_pressed[273]:
            self.hero.move = True
            self.hero.speed = -7
        elif keys_pressed[274]:
            self.hero.move = True
            self.hero.speed = 7
        else:
            self.hero.speed = 0


        if keys_pressed[97]:
            self.hero2.Move = False
            self.hero2.speed = -7
        elif keys_pressed[100]:
            self.hero2.Move = False
            self.hero2.speed = 7
        elif keys_pressed[119]:
            self.hero2.Move = True
            self.hero2.speed = -7
        elif keys_pressed[115]:
            self.hero2.Move = True
            self.hero2.speed = 7
        else:
            self.hero2.speed = 0
        #退出游戏
        if event.type == pygame.QUIT:
            PlaneGame.__game_over()
        #将敌机添加到精灵组里
        elif event.type == CREATE_ENEMY_EVENT:
            self.diji_group.add(Enemy())
        #英雄发子弹
        elif event.type == HERO_FIRE_EVENT:
            self.hero.fire()
            self.hero2.fire()
            
@staticmethod
def __game_over():
    print("游戏结束")
    pygame.quit()
    exit()

#碰撞检测
def __check_collide(self):
    #子弹销毁敌机
    pygame.sprite.groupcollide(self.hero.bullets_group,self.diji_group,True,True)
    pygame.sprite.groupcollide(self.hero2.bullet_group,self.diji_group,True,True)
    #敌机撞毁英雄
    enemies = pygame.sprite.spritecollide(self.hero,self.diji_group,True)
    enemie = pygame.sprite.spritecollide(self.hero2,self.diji_group,True)
    #判断列表时候有内容
    if len(enemies) > 0:
        self.hero.kill()
        self.hero.rect.y = -10000
    if len(enemie) > 0:
        self.hero2.kill()
        self.hero2.rect.y = -10000
    #判断两个敌机都死亡退出游戏
    if self.hero.rect.y == -10000 and self.hero2.rect.y == -10000:
        self.__game_over()
#更新精灵和精灵组
def __update_sprites(self):
    # self.hero_group.update()
    # self.hero_group.draw()

    # self.diji_group.update()
    # self.diji_group.draw()

    # self.bg_group.update()
    # self.bg_group.draw()
    for a in [self.bg_group,self.diji_group,self.hero_group,self.hero.bullets_group,self.hero2.bullet_group]:
        a.update()
        a.draw(self.screen)

if __name__ == "__main__":
     #使用游戏类创建游戏对象
     game = PlaneGame()

#开始游戏
game.start_game()