Python制作字符雨（代码）

#导入系统文件库

import pygame

import random

from pygame.locals import *

from random import randint

#定义一些窗体参数及加载字体文件

SCREEN_WIDTH = 900 # 窗体宽度

SCREEN_HEIGHT = 600 # 窗体宽度

LOW_SPEED = 4 # 字体移动最低速度

HIGH_SPEED = 10 # 字体移动最快速度

FONT_COLOR = (00,150,00) # 字体颜色

FONT_SIZE = 5 # 字体尺寸

FONT_NOM = 20 # 显示字体数量 从0开始

FONT_NAME = "calibrii.ttf" # 注意字体的文件名必须与真实文件完全相同(注意ttf的大小写)，且文件名不能是中文

FREQUENCE = 10 # 时间频度

times = 0 # 初始化时间

定义随机参数

def randomspeed() :

return randint(LOW_SPEED,HIGH_SPEED)

def randomposition() :

return randint(0,SCREEN_WIDTH),randint(0,SCREEN_HEIGHT)

def randomoname() :

return randint(0,100000)

def randomvalue() :

return randint(0,100) # this is your own display number range

#class of sprite

class Word(pygame.sprite.Sprite) :

def init(self,bornposition) :

pygame.sprite.Sprite.init(self)

self.value = randomvalue()

self.font = pygame.font.Font(FONT_NAME,FONT_SIZE)

self.image = self.font.render(str(self.value),True,FONT_COLOR)

self.speed = randomspeed()

self.rect = self.image.get_rect()

self.rect.topleft = bornposition

def update(self) :

self.rect = self.rect.move(0,self.speed)

if self.rect.top > SCREEN_HEIGHT :

self.kill()

#init the available modules

pygame.init()

screen = pygame.display.set_mode((SCREEN_WIDTH,SCREEN_HEIGHT))

pygame.display.set_caption("ViatorSun CodeRain")

clock = pygame.time.Clock()

group = pygame.sprite.Group()

group_count = int(SCREEN_WIDTH / FONT_NOM)

#mainloop

while True :

time = clock.tick(FREQUENCE)

for event in pygame.event.get() :

if event.type == QUIT :

pygame.quit()

exit()

screen.fill((0,0,0))

for i in range(0,group_count) :

group.add(Word((i * FONT_NOM,-FONT_NOM)))

group.update()

group.draw(screen)

pygame.display.update()