Python Pygame｜实现GIF（gif）动图的加载和降帧

import pygame.display from sprites import * class Run_and_Jump_Game(object): """程序猿乘风破浪小游戏主程序""" def __init__(self): print("游戏初始化") pygame.init() pygame.display.set_caption("程序猿乘风破浪小游戏") # 1.创建游戏的窗口 self.screen = pygame.display.set_mode(SCREEN_RECT.size) # 2.创建游戏的时钟 self.clock = pygame.time.Clock() # 3.调用私有方法，完成精灵和精灵组的创建 self.__create_sprites() # 4.设置定时器事件——每3秒创建一次海浪 pygame.time.set_timer(CREATE_WAVE_EVENT, 3000) # 5.设置定时器事件——倒计时每1秒触发一次 pygame.time.set_timer(CREATE_I_EVENT, 1000) # 6.设置定时器事件——10秒后结束游戏 pygame.time.set_timer(CREATE_OVER_EVENT, 30000) # 7.设置游戏状态,1代表开始，0代表结束，-1代表退出 self.game_state = 1 def __create_sprites(self): """创建背景精灵和精灵组""" # 天空背景 bg1 = Background("./images/background_16_9.png", False) bg2 = Background("./images/background_16_9.png", True) self.back_group = pygame.sprite.Group(bg1, bg2) # 内层海洋背景 sea_bg_1 = Background("./images/sea_bg_1_16_9.png", False) sea_bg_2 = Background("./images/sea_bg_1_16_9.png", True) #移动速度 sea_bg_1.speed = 2 sea_bg_2.speed = 2 sea_bg_1.rect.bottom = SCREEN_RECT.height sea_bg_2.rect.bottom = SCREEN_RECT.height self.sea_bg_ground_1 = pygame.sprite.Group(sea_bg_1, sea_bg_2) # 外层海洋背景 sea_bg_3 = Background("./images/sea_bg_2_16_9.png", False) sea_bg_4 = Background("./images/sea_bg_2_16_9.png", True) # 移动速度 sea_bg_3.speed = 3 sea_bg_4.speed = 3 sea_bg_3.rect.bottom = SCREEN_RECT.height sea_bg_4.rect.bottom = SCREEN_RECT.height self.sea_bg_ground_2 = pygame.sprite.Group(sea_bg_3, sea_bg_4) # 创建海浪精灵组 self.wave_group = pygame.sprite.Group() # 创建猴子精灵和精灵组 self.man = Man() self.man_group = pygame.sprite.Group(self.man) # 创建得分精灵和精灵组 self.score_sprite = Score() self.score_group = pygame.sprite.Group(self.score_sprite) # 创建倒计时精灵和精灵组 self.countdown_sprite = Countdown(30) self.countdown_group = pygame.sprite.Group(self.countdown_sprite) # 创建菜单精灵和精灵组 self.menu_sprite = Menu() self.menu_group = pygame.sprite.Group(self.menu_sprite) # 创建鼠标精灵和精灵组 self.mouse_sprite = Mouse() self.mouse_group = pygame.sprite.Group(self.mouse_sprite) # 创建鱼精灵和精灵组 self.fish_sprite = Fish() self.fish_group = pygame.sprite.Group(self.fish_sprite) # 创建飞鸟精灵和精灵组 self.bird_sprite = GameGifSprite("./images/bird.gif") self.bird_group = pygame.sprite.Group(self.bird_sprite) def start_game(self): print("游戏正式开始") # 播放音乐 # pygame.mixer.init() # pygame.mixer.music.load("./music/music.mp3") # pygame.mixer.music.play() while True: if self.game_state == 1: """游戏进行中""" # 1.设置刷新帧率 self.clock.tick(FRAME_PER_SEC) # 2.事件监听 self.__event_handler() # 3.碰撞检测 self.__check_collide() # 4.更新/绘制精灵组 self.__update_sprites() # 5.更新显示 pygame.display.update() elif self.game_state == 0: """游戏某一轮结束""" # 1.更新游戏菜单 self.__event_menu_handler() self.__check_menu_collide() self.__update_menu() # 2.更新显示 pygame.display.update() elif self.game_state == -1: """游戏退出""" Run_and_Jump_Game.__game_over() def __event_handler(self): for event in pygame.event.get(): # 判断是否退出游戏 if event.type == pygame.QUIT: self.game_state = -1 elif event.type == CREATE_WAVE_EVENT: # 创建海浪精灵 wave = Wave() # 将海浪精灵添加到海浪精灵组 self.wave_group.add(wave) elif event.type == CREATE_I_EVENT: # 倒计时减1秒 self.countdown_sprite.start_time = self.countdown_sprite.start_time - 1 # 每过1秒加十分 self.score_sprite.score = self.score_sprite.score + 10 elif event.type == CREATE_OVER_EVENT: # 游戏某回合结束显示菜单 self.menu_sprite.display = True self.game_state = 0 # 使用键盘提供的方法获取键盘按键 - 按键元组 keys_pressed = pygame.key.get_pressed() # 判断用户按下键盘空格键 if keys_pressed[pygame.K_SPACE]: # 跳起 self.man.speed = -10 else: # 下降 self.man.speed = 10 def __check_collide(self): # 1.撞到海浪 waves = pygame.sprite.spritecollide(self.man, self.wave_group, True) # 2.判断碰撞列表长度 if len(waves) > 0: # 该回合游戏结束，显示菜单 self.menu_sprite.display = True self.game_state = 0 def __update_sprites(self): """刷新各个精灵组""" self.back_group.update() self.back_group.draw(self.screen) # 先刷新内层海洋 self.sea_bg_ground_1.update() self.sea_bg_ground_1.draw(self.screen) # 再刷新猴子 self.man_group.update() self.man_group.draw(self.screen) self.wave_group.update() self.wave_group.draw(self.screen) self.fish_group.update() self.fish_group.draw(self.screen) self.bird_group.update() self.bird_group.draw(self.screen) # 刷新外层海洋 self.sea_bg_ground_2.update() self.sea_bg_ground_2.draw(self.screen) self.score_group.update() self.score_group.draw(self.screen) self.countdown_group.update() self.countdown_group.draw(self.screen) def __event_menu_handler(self): """菜单事件处理函数""" for event in pygame.event.get(): # 判断是否退出游戏 if event.type == pygame.QUIT: self.game_state = -1 elif event.type == pygame.MOUSEBUTTONDOWN: if event.button == 1: # 用户点击鼠标左键，设置鼠标精灵位置 pos = pygame.mouse.get_pos() self.mouse_sprite.rect.top = pos[1] self.mouse_sprite.rect.left = pos[0] self.menu_sprite.update() def __check_menu_collide(self): click_list = pygame.sprite.spritecollide(self.menu_sprite, self.mouse_group, False) if len(click_list) > 0: """鼠标击中菜单,重新开始游戏""" # 1.设置游戏状态为进行中 self.game_state = 1 # 2.重置鼠标位置 self.mouse_sprite.rect.top = 0 self.mouse_sprite.rect.left = 0 #