python pygame实现滚动横版射击游戏城市之战

Python  /  管理员 发布于 7年前   274

pygame城市之战横版射击游戏,按上下左右方向箭头操作飞机。这是一个横板射击小游戏，在黑夜的城市上空，你将要操作一架飞机去射击敌机,爆炸效果还不错。

在游戏中定义了滚动的背景类，定义了飞机类Plane，定义了子弹类，敌机类，爆炸类等，是学习Pygame和面向对象编程的好例子。

代码：

import mathimport timeimport pygamefrom pygame.locals import *from random import choice,randint class ScrolledBackground(pygame.sprite.Sprite): def __init__(self,image,screen):  pygame.sprite.Sprite.__init__(self)  self.screen = screen  self.width = screen.get_width()  self.height = screen.get_height()  self.image0 = pygame.image.load(image).convert_alpha()  self.image1 = pygame.image.load(image).convert_alpha()   self.rect0 = self.image0.get_rect()    self.rect1 = self.image1.get_rect()  self.rect1.left = self.rect0.right  self.dx = -10  self.dy = 0   def update(self):  pass  def draw(self):  pass  class Plane(pygame.sprite.Sprite): def __init__(self,image,keys,screen):  pygame.sprite.Sprite.__init__(self)  self.keys = keys     # 上下左右按键  self.image = pygame.image.load(image).convert_alpha()  self.screen = screen  self.rect = self.image.get_rect()  self.rect.centery = self.screen.get_height()//2  self.xspeed = 0  self.yspeed = 0  self.dead = False     # 新增加的属性   def keys_check(self,all_keys):   pass  def update(self):  self.rect.move_ip(self.xspeed,self.yspeed)   def draw(self):  self.screen.blit(self.image,self.rect)  class Bullet(pygame.sprite.Sprite): def __init__(self,image,plane,group,screen):  pygame.sprite.Sprite.__init__(self)  self.plane = plane  self.image = pygame.image.load(image).convert_alpha()  self.rect = self.image.get_rect()  self.rect.center = plane.rect.center  self.group = group  self.group.add(self)  self.screen = screen  self.screen_width = screen.get_width()  self.screen_height = screen.get_height()     def update(self):  self.rect.move_ip(10,0)  if self.rect.left > self.screen_width :   self.group.remove(self)   def split_images(image,rows,cols): """image是一张图片,把它切分为若干图,返回列表""" global explosion_images_list image = pygame.image.load(image) step_width = image.get_width()//cols step_height = image.get_height()//rows  pass      class Explosion(pygame.sprite.Sprite): """爆炸效果类，显示一系列帧图""" def __init__(self,surimages,position,group):  pygame.sprite.Sprite.__init__(self)  self.surimages = surimages      # 爆炸效果用到的surface列表  self.index = 0  self.amounts = len(surimages)  self.image = self.surimages[self.index]   # 初始造型  self.rect = self.image.get_rect()    # 矩形对象  self.rect.center = position      # 爆炸位置  self.group = group  self.group.add(self)  self.interval_time = 0.01      # 造型切换时间  self.begin_time = time.time()     # 爆炸起始时间   def update(self):         # 换造型    if time.time() - self.begin_time >= self.interval_time: # 超时，则换造型   if self.index < self.amounts:    self.image = self.surimages[self.index]    self.index = self.index + 1    self.begin_time = time.time()   else:    self.group.remove(self)     # 造型切换完了则从组中移除自己    class Enemy(pygame.sprite.Sprite): def __init__(self,images,group,screen):  """images是surface列表"""  pygame.sprite.Sprite.__init__(self)  self.screen = screen  self.screen_width = self.screen.get_width()  # 获取屏幕宽度  self.screen_height = self.screen.get_height() # 获取屏幕高度  self.image = choice(images)      # 随机选择一个surface  self.rect = self.image.get_rect()  self.rect.left = self.screen_width + randint(10,self.screen_width)  self.rect.centery = randint(0,self.screen_height)  self.group = group  self.group.add(self)       # 加入到自己的组 def update(self):  self.rect.move_ip(-5,0)  if self.rect.right <= 0 :   self.group.remove(self)  class Eullet(pygame.sprite.Sprite): """敌方子弹类""" def __init__(self,image,selfgroup,enemy_group,plane,screen):  """参数列表：image，已转换成surface的对象      selfgroup，所在的组      enemy_group，敌人组.      plane，我方飞机      screen，屏幕对象  """   pass   def update(self):  self.rect.move_ip(-self.dx//30,-self.dy//30)  if self.beyond_edge() :   self.group.remove(self)  def beyond_edge(self):   pass def collision_check(): """对游戏中的对象进行碰撞检测,碰撞检测有以下几种：  1、我方飞机碰到敌方飞机，都爆炸。给我方飞机增加dead属性。  2、我方飞机碰到敌方子弹，我方飞机爆炸，游戏结束。  3、敌方飞机碰到我方子弹，敌方飞机爆炸。  以下引用的是全局变量 """ global enemy_counter "我方飞机和敌方飞机任何一架的碰撞" if not plane1.dead:  eny = pygame.sprite.spritecollideany(plane1, group_enemy)  if eny!=None :   # 碰到了，我方飞机死，游戏结束       Explosion(explosion_images_list,eny.rect.center,group_explosion) # 在敌方飞机处发生爆炸   Explosion(explosion_images_list,plane1.rect.center,group_explosion) # 在我方飞机处发生爆炸   plane1.dead = True   group_enemy.remove(eny)# 从敌方组中移除碰撞的敌机    "我方飞机碰到敌方子弹，我方死，游戏结束。" if not plane1.dead:  b = pygame.sprite.spritecollideany(plane1, group_enemy_bullet)  if b!=None :   # 碰到了，我方飞机死，游戏结束       Explosion(explosion_images_list,plane1.rect.center,group_explosion) # 在我方飞机处发生爆炸   plane1.dead = True    "敌方飞机碰到我方子弹，我方子弹爆，敌方爆炸" result_dict = pygame.sprite.groupcollide(group_bullet1, group_enemy, True, True) # 一颗子弹可能打到几架飞机 if result_dict !={}:  missle = list(result_dict.keys())[0]          # 碰到我方子弹  enemy_list = result_dict[missle]  #Explosion(explosion_images_list,missle.rect.center,group_explosion)  enemy_counter += len(enemy_list)       # 大于一定的数量，如果我方战机没死，则成功结束  for e in enemy_list: Explosion(explosion_images_list,e.rect.center,group_explosion)    pygame.display.set_caption("风火轮少儿编程_城市之战射击游戏，当前打爆敌机数：" + str(enemy_counter) + "，请自行编写游戏成功结束的代码！")     if __name__ == "__main__":  width,height = 480,360 enemy_bullet = "images/bullet2.png" enemy_images = ["images/enemy0.png","images/enemy1.png","images/enemy2.png","images/enemy3.png"] explosion_images = "images/explosion.png" image = "images/night city with street.png" plane_image1 = "images/plane.png" bullet_image1 = "images/bullet.png"  pygame.init() screen = pygame.display.set_mode((width,height)) pygame.display.set_caption("城市之战,按上下左右操作飞机。风火轮少儿编程_www.scratch8.net")  enemy_bullet = pygame.image.load(enemy_bullet) enemy_images = [pygame.image.load(img) for img in enemy_images] # 形成敌机的surface列表 explosion_images_list = []        # 爆炸效果surface列表 explosion_images = split_images(explosion_images,2,13) # 按2行13列切分图形，返回surface列表   keys1 = [K_UP,K_DOWN,K_LEFT,K_RIGHT] plane1 = Plane(plane_image1,keys1,screen) bg = ScrolledBackground(image,screen) running = True clock = pygame.time.Clock()  bullet1_shoot_EVENT = USEREVENT + 1 pygame.time.set_timer(bullet1_shoot_EVENT,500)  "敌机定时生成事件" enemy_EVENT = USEREVENT + 2 pygame.time.set_timer(enemy_EVENT,1000)  "敌机定时发射子弹事件" enemy_shoot_EVENT = USEREVENT + 3 pygame.time.set_timer(enemy_shoot_EVENT,50)  group_explosion = pygame.sprite.Group() group_bullet1 = pygame.sprite.Group() group_enemy = pygame.sprite.Group() group_enemy_bullet = pygame.sprite.Group() enemy_amounts = 100       # 大于这个数量则游戏成功结束 enemy_counter = 0 while running:  for event in pygame.event.get():   if event.type == QUIT:    running = False    break   if event.type == bullet1_shoot_EVENT: # 我方子弹1发射事件    if not plane1.dead:     Bullet(bullet_image1,plane1,group_bullet1,screen)   if event.type == enemy_EVENT:   # 定时生成一架敌机    Enemy(enemy_images,group_enemy,screen)       if event.type == enemy_EVENT:   # 定时生成一枚敌机子弹    Eullet(enemy_bullet,group_enemy_bullet,group_enemy,plane1,screen)         all_keys = pygame.key.get_pressed() # 所有按键检测  plane1.keys_check(all_keys)   # 对plane1进行按键检测    bg.update()       # 更新背景坐标  group_bullet1.update()    # 我方子弹更新  if not plane1.dead :   plane1.update()     # 飞机1坐标更新  group_enemy.update()     # 敌机坐标  group_enemy_bullet.update()   # 敌机子弹更新  group_explosion.update()    # 爆炸效果更新    "坐标都更新完后，应该进行碰撞检测"  collision_check()    screen.fill((0,0,0))  bg.draw()  group_bullet1.draw(screen)  if not plane1.dead :   plane1.draw()  group_enemy.draw(screen)  group_enemy_bullet.draw(screen)  group_explosion.draw(screen)  pygame.display.update()  clock.tick(30) pygame.quit()

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