Python流星雨特效代码

以下是Python实现流星雨特效的代码：

import random
import pygame

# 初始化Pygame
pygame.init()

# 设置窗口大小
width, height = 640, 480
screen = pygame.display.set_mode((width, height))

# 定义流星类
class Meteor:
    def __init__(self, x, y, speed):
        self.x = x
        self.y = y
        self.speed = speed
        self.size = random.randint(1, 4)

    def update(self):
        self.y += self.speed
        self.x += self.speed / 2
        if self.y > height or self.x > width:
            self.y = random.randint(-height, 0)
            self.x = random.randint(0, width)

    def draw(self):
        pygame.draw.rect(screen, (255, 255, 255), (self.x, self.y, self.size, self.size))

# 初始化流星列表
meteors = []
for i in range(10):
    x = random.randint(0, width)
    y = random.randint(-height, 0)
    speed = random.randint(5, 15)
    meteor = Meteor(x, y, speed)
    meteors.append(meteor)

# 游戏循环
while True:
    # 处理事件
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            pygame.quit()
            sys.exit()

    # 填充背景色
    screen.fill((0, 0, 0))

    # 更新流星位置
    for meteor in meteors:
        meteor.update()
        meteor.draw()

    # 刷新屏幕
    pygame.display.flip()