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Python | 写了个钟&

LogicPanda

发布于 2018-08-30 03:45:31

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代码可运行

文章被收录于专栏：逻辑熊猫带你玩Python逻辑熊猫带你玩Python

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代码可运行

图文编辑：逻辑熊猫图片来源：网络与截图欢迎朋友圈各种姿势转发

一个软件的关键在于，你想用它做什么！

概述：

显示时间的钟表
使用pygame模块
使用time、sys、math模块

一、展示

二、代码：

import sys, math, pygame
from pygame.locals import *
from datetime import datetime, date, time

def print_text(font, x, y, text, color = (255, 255, 255)):
    imgText = font.render(text, True, color)
    screen.blit(imgText, (x, y))

def wrap_angle(angle):
    return abs(angle % 360)

# main program begins
pygame.init()
screen = pygame.display.set_mode((600, 500))
pygame.display.set_caption("Analog Clock Demo")
font = pygame.font.Font(None, 24)
orange = 200, 180, 0
white = 255, 255, 255
yellow = 255, 255, 0
pink = 255, 100, 100

pos_x = 300
pos_y = 250
radius = 250
angle = 360

# repeating loop
while True :
    for event in pygame.event.get():
        if event.type == QUIT:
            sys.exit()
    keys = pygame.key.get_pressed()
    if keys[K_ESCAPE]:
        screen.fill((0, 0, 100))
        sys.exit()

    # draw the clock numbers 1-12
    for n in range(1, 13):
        angle = math.radians(n * (360 / 12) - 90)
        x = math.cos(angle) * (radius - 20) - 10
        y = math.sin(angle) * (radius - 20) - 10
        print_text(font, pos_x + x, pos_y + y, str(n))

    # get the time of day
    today = datetime.today()
    hours = today.hour
    minutes = today.minute
    seconds = today.second

    # draw the hours hand
    hour_angle = wrap_angle(hours * (360 / 12) - 90)
    hour_angle = math.radians(hour_angle)
    hour_x = math.cos(hour_angle) * (radius - 80)
    hour_y = math.sin(hour_angle) * (radius - 80)
    target = (pos_x + hour_x, pos_y + hour_y)
    pygame.draw.line(screen, pink, (pos_x, pos_y), target, 25)

    # draw the minute hand
    min_angle = wrap_angle(minutes * (360 / 60) - 90)
    min_angle = math.radians(min_angle)
    min_x = math.cos(min_angle) * (radius - 60)
    min_y = math.sin(min_angle) * (radius - 60)
    target = (pos_x + min_x, pos_y + min_y)
    pygame.draw.line(screen, orange, (pos_x, pos_y), target, 12)
    
    # draw the second hand
    sec_angle = wrap_angle(seconds * (360 / 60) - 90)
    sec_angle = math.radians(sec_angle)
    sec_x = math.cos(sec_angle) * (radius - 40)
    sec_y = math.sin(sec_angle) * (radius - 40)
    target = (pos_x + sec_x, pos_y + sec_y)
    pygame.draw.line(screen, yellow, (pos_x, pos_y), target, 6)

    # cover the center
    pygame.draw.circle(screen, white, (pos_x, pos_y), radius, 6)
    pygame.draw.circle(screen, white, (pos_x, pos_y), 20)
    print_text(font, 0, 0, str(hours) + " : " + str(minutes) + " : " + str(seconds))
    
    pygame.display.update()
    screen.fill((0,0,0))

三、代码讲解

关于颜色：可在此处修改颜色信息

orange = 200, 180, 0
white = 255, 255, 255
yellow = 255, 255, 0
pink = 255, 100, 100

获取系统时间

# get the time of day
    today = datetime.today()
    hours = today.hour
    minutes = today.minute
    seconds = today.second

定位指针

# draw the hours hand
   hour_angle = wrap_angle(hours * (360 / 12) - 90)
   hour_angle = math.radians(hour_angle)
   hour_x = math.cos(hour_angle) * (radius - 80)
   hour_y = math.sin(hour_angle) * (radius - 80)
   target = (pos_x + hour_x, pos_y + hour_y)
   pygame.draw.line(screen, pink, (pos_x, pos_y), target, 25)

   # draw the minute hand
   min_angle = wrap_angle(minutes * (360 / 60) - 90)
   min_angle = math.radians(min_angle)
   min_x = math.cos(min_angle) * (radius - 60)
   min_y = math.sin(min_angle) * (radius - 60)
   target = (pos_x + min_x, pos_y + min_y)
   pygame.draw.line(screen, orange, (pos_x, pos_y), target, 12)
   
   # draw the second hand
   sec_angle = wrap_angle(seconds * (360 / 60) - 90)
   sec_angle = math.radians(sec_angle)
   sec_x = math.cos(sec_angle) * (radius - 40)
   sec_y = math.sin(sec_angle) * (radius - 40)
   target = (pos_x + sec_x, pos_y + sec_y)
   pygame.draw.line(screen, yellow, (pos_x, pos_y), target, 6)