中秋将至利用python画一些月饼从天而降不用买了

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导语

好消息！下一个假期已经在路上了，正在向我们招手呢！

大家只要再坚持5天

就能迎来中秋小长假啦~

​“海上生明月，天涯共此时”

又是一年中秋至！快跟着小编来看看怎么寓教于乐吧～～

今天带大家编写一款应时应景的中秋小游戏！

天上掉月饼啦~天上掉月饼啦~天上掉月饼啦~

正文

​准备好相应的素材如下：

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环境安装：

python3.6、pycharm2021、游戏模块pygame。

安装：pip install  pygame

​初始化游戏加载素材：

def initgame():
 
    pygame.init()
    screen = pygame.display.set_mode(cfg.screensize)
    pygame.display.set_caption('中秋月饼小游戏')
 
    game_images = {}
    for key, value in cfg.image_paths.items():
        if isinstance(value, list):
            images = []
            for item in value: images.append(pygame.image.load(item))
            game_images[key] = images
        else:
            game_images[key] = pygame.image.load(value)
    game_sounds = {}
    for key, value in cfg.audio_paths.items():
        if key == 'bgm': continue
        game_sounds[key] = pygame.mixer.sound(value)
 
    return screen, game_images, game_sounds

主函数定义：

def main():
    # 初始化
    screen, game_images, game_sounds = initgame()
    # 播放背景音乐
    pygame.mixer.music.load(cfg.audio_paths['bgm'])
    pygame.mixer.music.play(-1, 0.0)
    # 字体加载
    font = pygame.font.font(cfg.font_path, 40)
    # 定义hero
    hero = hero(game_images['hero'], position=(375, 520))
    # 定义掉落组
    food_sprites_group = pygame.sprite.group()
    generate_food_freq = random.randint(10, 20)
    generate_food_count = 0
    # 当前分数/历史最高分
    score = 0
    highest_score = 0 if not os.path.exists(cfg.highest_score_record_filepath) else int(open(cfg.highest_score_record_filepath).read())
    # 游戏主循环
    clock = pygame.time.clock()
    while true:
        # --填充背景
        screen.fill(0)
        screen.blit(game_images['background'], (0, 0))
        # --倒计时信息
        countdown_text = 'count down: ' + str((90000 - pygame.time.get_ticks()) // 60000) + ":" + str((90000 - pygame.time.get_ticks()) // 1000 % 60).zfill(2)
        countdown_text = font.render(countdown_text, true, (0, 0, 0))
        countdown_rect = countdown_text.get_rect()
        countdown_rect.topright = [cfg.screensize[0]-30, 5]
        screen.blit(countdown_text, countdown_rect)
        # --按键检测
        for event in pygame.event.get():
            if event.type == pygame.quit:
                pygame.quit()
                sys.exit()
        key_pressed = pygame.key.get_pressed()
        if key_pressed[pygame.k_a] or key_pressed[pygame.k_left]:
            hero.move(cfg.screensize, 'left')
        if key_pressed[pygame.k_d] or key_pressed[pygame.k_right]:
            hero.move(cfg.screensize, 'right')
        # --随机生成
        generate_food_count += 1
        if generate_food_count > generate_food_freq:
            generate_food_freq = random.randint(10, 20)
            generate_food_count = 0
            food = food(game_images, random.choice(['gold',] * 10 + ['apple']), cfg.screensize)
            food_sprites_group.add(food)
        # --更新掉落
        for food in food_sprites_group:
            if food.update(): food_sprites_group.remove(food)
        # --碰撞检测
        for food in food_sprites_group:
            if pygame.sprite.collide_mask(food, hero):
                game_sounds['get'].play()
                food_sprites_group.remove(food)
                score += food.score
                if score > highest_score: highest_score = score
        # --画hero
        hero.draw(screen)
        # --画
        food_sprites_group.draw(screen)
        # --显示得分
        score_text = f'score: {score}, highest: {highest_score}'
        score_text = font.render(score_text, true, (0, 0, 0))
        score_rect = score_text.get_rect()
        score_rect.topleft = [5, 5]
        screen.blit(score_text, score_rect)
        # --判断游戏是否结束
        if pygame.time.get_ticks() >= 90000:
            break
        # --更新屏幕
        pygame.display.flip()
        clock.tick(cfg.fps)
    # 游戏结束, 记录最高分并显示游戏结束画面
    fp = open(cfg.highest_score_record_filepath, 'w')
    fp.write(str(highest_score))
    fp.close()
    return showendgameinterface(screen, cfg, score, highest_score)

定义月饼、灯笼等掉落：

​

import pygame
import random
 
 
 
class food(pygame.sprite.sprite):
    def __init__(self, images_dict, selected_key, screensize, **kwargs):
        pygame.sprite.sprite.__init__(self)
        self.screensize = screensize
        self.image = images_dict[selected_key]
        self.mask = pygame.mask.from_surface(self.image)
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.bottom = random.randint(20, screensize[0]-20), -10
        self.speed = random.randrange(5, 10)
        self.score = 1 if selected_key == 'gold' else 5
    '''更新食物位置'''
    def update(self):
        self.rect.bottom += self.speed
        if self.rect.top > self.screensize[1]:
            return true
        return false

定义接月饼的人物：

import pygame
 
 
class hero(pygame.sprite.sprite):
    def __init__(self, images, position=(375, 520), **kwargs):
        pygame.sprite.sprite.__init__(self)
        self.images_right = images[:5]
        self.images_left = images[5:]
        self.images = self.images_right.copy()
        self.image = self.images[0]
        self.mask = pygame.mask.from_surface(self.image)
        self.rect = self.image.get_rect()
        self.rect.left, self.rect.top = position
        self.diretion = 'right'
        self.speed = 8
        self.switch_frame_count = 0
        self.switch_frame_freq = 1
        self.frame_index = 0
    '''左右移动hero'''
    def move(self, screensize, direction):
        assert direction in ['left', 'right']
        if direction != self.diretion:
            self.images = self.images_left.copy() if direction == 'left' else self.images_right.copy()
            self.image = self.images[0]
            self.diretion = direction
            self.switch_frame_count = 0
        self.switch_frame_count += 1
        if self.switch_frame_count % self.switch_frame_freq == 0:
            self.switch_frame_count = 0
            self.frame_index = (self.frame_index + 1) % len(self.images)
            self.image = self.images[self.frame_index]
        if direction == 'left':
            self.rect.left = max(self.rect.left-self.speed, 0)
        else:
            self.rect.left = min(self.rect.left+self.speed, screensize[0])
    '''画到屏幕上'''
    def draw(self, screen):
        screen.blit(self.image, self.rect)

游戏结束界面：设置的一分30秒结束接到多少就是多少分数。

​

import sys
import pygame
 
 
'''游戏结束画面'''
def showendgameinterface(screen, cfg, score, highest_score):
    # 显示的文本信息设置
    font_big = pygame.font.font(cfg.font_path, 60)
    font_small = pygame.font.font(cfg.font_path, 40)
    text_title = font_big.render(f"time is up!", true, (255, 0, 0))
    text_title_rect = text_title.get_rect()
    text_title_rect.centerx = screen.get_rect().centerx
    text_title_rect.centery = screen.get_rect().centery - 100
    text_score = font_small.render(f"score: {score}, highest score: {highest_score}", true, (255, 0, 0))
    text_score_rect = text_score.get_rect()
    text_score_rect.centerx = screen.get_rect().centerx
    text_score_rect.centery = screen.get_rect().centery - 10
    text_tip = font_small.render(f"enter q to quit game or enter r to restart game", true, (255, 0, 0))
    text_tip_rect = text_tip.get_rect()
    text_tip_rect.centerx = screen.get_rect().centerx
    text_tip_rect.centery = screen.get_rect().centery + 60
    text_tip_count = 0
    text_tip_freq = 10
    text_tip_show_flag = true
    # 界面主循环
    clock = pygame.time.clock()
    while true:
        screen.fill(0)
        for event in pygame.event.get():
            if event.type == pygame.quit:
                pygame.quit()
                sys.exit()
            elif event.type == pygame.keydown:
                if event.key == pygame.k_q:
                    return false
                elif event.key == pygame.k_r:
                    return true
        screen.blit(text_title, text_title_rect)
        screen.blit(text_score, text_score_rect)
        if text_tip_show_flag:
            screen.blit(text_tip, text_tip_rect)
        text_tip_count += 1
        if text_tip_count % text_tip_freq == 0:
            text_tip_count = 0
            text_tip_show_flag = not text_tip_show_flag
        pygame.display.flip()
        clock.tick(cfg.fps)

游戏界面：

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​​总结

好啦！今天的游戏更新跟中秋主题一次性写完啦！嘿嘿~机智如我！​​​

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