python实现飞机大战

import pygame
from plane_sprites import *
 
 
class PlaneGame(object):
  """飞机大战主游戏"""
 
  def __init__(self):
    print("游戏初始化")
    # 1，绘制屏幕窗口
    self.screen = pygame.display.set_mode(SCREEN_RECT.size)
    # 2，创建时钟
    self.clock = pygame.time.Clock()
    # 3，调用私有方法，精灵和精灵组的创建
    self.sprite_creat()
    # 4,设置定时器事件，创建敌机
    pygame.time.set_timer(CREATE_ENEMY_EVENT, 400)
    pygame.time.set_timer(HERO_FIRE_EVENT, 200)
 
  def sprite_creat(self):
    bg1 = BackGround()
    bg2 = BackGround(True)
 
    self.bg_group = pygame.sprite.Group(bg1, bg2)
    self.enemy_group = pygame.sprite.Group()
 
    # 创建英雄的精灵和精灵组
    self.hero = Hero()
    self.hero_group = pygame.sprite.Group(self.hero)
 
  def start_game(self):
    print("游戏开始。。。")
    while True:
      # 1，设置刷新帧率
      self.clock.tick(FRAME_PER_SEC)
      # 2，事件监听
      self.__event_handle()
      # 3，碰撞检测
      self.__check_collide()
      # 4，更新/绘制精灵和精灵组
      self.__updtae_sprites()
      # 5，更新显示
      pygame.display.update()
 
  def __event_handle(self):
    for event in pygame.event.get():
      if event.type == pygame.QUIT:
        PlaneGame.__game_over()
      elif event.type == CREATE_ENEMY_EVENT:
        print("敌机出场。。。")
        # 创建敌机精灵
        enemy = Enemy()
        # 敌机精灵添加到敌机精灵组
        self.enemy_group.add(enemy)
      elif event.type == HERO_FIRE_EVENT:
        self.hero.fire()
 
    # 移动英雄
    keys_pressed = pygame.key.get_pressed()
    if keys_pressed[pygame.K_RIGHT]:
      self.hero.speed = 5
    elif keys_pressed[pygame.K_LEFT]:
      self.hero.speed = -5
    else:
      self.hero.speed = 0
 
  def __check_collide(self):
    pygame.sprite.groupcollide(self.hero.bullets, self.enemy_group, True, True)
    enemies = pygame.sprite.spritecollide(self.hero, self.enemy_group, True)
    if len(enemies) > 0:
      self.hero.kill()
      PlaneGame.__game_over()
 
  def __updtae_sprites(self):
 
    self.bg_group.update()
    self.bg_group.draw(self.screen)
 
    self.enemy_group.update()
    self.enemy_group.draw(self.screen)
 
    self.hero_group.update()
    self.hero_group.draw(self.screen)
 
    self.hero.bullets.update()
    self.hero.bullets.draw(self.screen)
 
  @staticmethod
  def __game_over():
    print("游戏结束了")
    pygame.quit()
    exit()
 
 
if __name__ == '__main__':
 
  # 创建游戏对象
  game = PlaneGame()
 
  # 启动游戏
  game.start_game()

import pygame
import random
 
# 屏幕大小
SCREEN_RECT = pygame.Rect(0, 0, 480, 700)
# 刷新帧率
FRAME_PER_SEC = 60
# 创建敌机的定时器常量
CREATE_ENEMY_EVENT = pygame.USEREVENT
# 创建发射子弹事件常量
HERO_FIRE_EVENT = pygame.USEREVENT + 1
 
 
class GameSprite(pygame.sprite.Sprite):
 
  def __init__(self, image_name, speed=1):
    super().__init__()
    self.image = pygame.image.load(image_name)
    self.rect = self.image.get_rect()
    self.speed = speed
 
  def update(self):
    self.rect.y += self.speed
 
 
class BackGround(GameSprite):
 
  def __init__(self, is_alt=False):
    super().__init__("./feiji/background.png")
    if is_alt:
      self.rect.y = -self.rect.height
 
  def update(self):
    self.rect.y += self.speed
    # self.speed += 0.0001
    # 判断背景图片是否移出屏幕窗口
    if self.rect.y > SCREEN_RECT.height:
      self.rect.y = -self.rect.height
 
 
class Enemy(GameSprite):
 
  def __init__(self):
    super().__init__("./feiji/enemy0.png")
    # 随机敌机的速度
    self.speed = random.randint(2, 5)
 
    # 随机敌机的水平位置
    self.rect.x = random.randint(0, (SCREEN_RECT.width-self.rect.width))
 
  def update(self):
    super().update()
    # 判断敌机是否移出屏幕
    if self.rect.y > SCREEN_RECT.height:
      print("飞出屏幕。。。")
      # 将敌机从敌机精灵组中删除
      self.kill()
 
  def __del__(self):
    print("删除敌机")
 
 
class Hero(GameSprite):
  """英雄类"""
 
  def __init__(self):
    super(Hero, self).__init__("./feiji/hero1.png", 0)
    self.rect.centerx = SCREEN_RECT.centerx
    self.rect.bottom = SCREEN_RECT.bottom - 80
    self.bullets = pygame.sprite.Group()
 
  def update(self):
    self.rect.x += self.speed
    if self.rect.x <= 0:
      self.rect.x = 0
    elif self.rect.x >= (SCREEN_RECT.width - self.rect.width):
      self.rect.x = SCREEN_RECT.width - self.rect.width
 
  def fire(self):
    # 创建子弹精灵
    bullet = Bullet()
 
    # 设置子弹精灵的位置
    bullet.rect.bottom = self.rect.y -5
    bullet.rect.centerx = self.rect.centerx
 
    # 将子弹精灵添加到子弹精灵组中去
    self.bullets.add(bullet)
 
 
class Bullet(GameSprite):
 
  def __init__(self):
    super(Bullet, self).__init__('./feiji/bullet.png', -2)
 
  def update(self):
    super(Bullet, self).update()
    if self.rect.y <= 0:
      self.kill()