
import pygame |
import random |
# 初始化 pygame |
pygame.init() |
# 设置屏幕宽高,根据背景图调整 |
bg_img = "bg.png" |
bg_size = (881, 513) |
screen = pygame.display.set_mode(bg_size) |
pygame.display.set_caption("动态下雪+bgm") |
bg = pygame.image.load(bg_img) |
# 雪花列表 |
snow_list = [] |
for i in range(150): |
x_site = random.randrange(0, bg_size[0]) # 雪花圆心位置 |
y_site = random.randrange(0, bg_size[1]) # 雪花圆心位置 |
X_shift = random.randint(-1, 1) # x 轴偏移量 |
radius = random.randint(4, 6) # 半径和 y 周下降量 |
snow_list.append([x_site, y_site, X_shift, radius]) |
# 创建时钟对象 |
clock = pygame.time.Clock() |
# 添加音乐 |
track = pygame.mixer.music.load('bgm.mp3') # 加载音乐文件 |
pygame.mixer.music.play() # 播放音乐流 |
pygame.mixer.music.fadeout(600000) # 设置音乐结束时间 |
done = False |
while not done: |
# 消息事件循环,判断退出 |
for event in pygame.event.get(): |
if event.type == pygame.QUIT: |
done = True |
screen.blit(bg, (0, 0)) |
# 雪花列表循环 |
for i in range(len(snow_list)): |
# 绘制雪花,颜色、位置、大小 |
pygame.draw.circle(screen, (255, 255, 255), snow_list[i][:2], snow_list[i][3] - 3) |
# 移动雪花位置(下一次循环起效) |
snow_list[i][0] += snow_list[i][2] |
snow_list[i][1] += snow_list[i][3] |
# 如果雪花落出屏幕,重设位置 |
if snow_list[i][1] > bg_size[1]: |
snow_list[i][1] = random.randrange(-50, -10) |
snow_list[i][0] = random.randrange(0, bg_size[0]) |
# 刷新屏幕 |
pygame.display.flip() |
clock.tick(30) |
# 退出 |
pygame.quit() |



