How to set a clicking clock in a pygame window

Question

#!/usr/bin/python # -*- coding: utf-8 -*- import pygame import sys import datetime import time class TextPicture(pygame.sprite.Sprite): def __init__(self, speed, location): pygame.sprite.Sprite.__init__(self) now = datetime.datetime.now() text = now.strftime("%H:%M:%S") font = pygame.font.Font(None, 40) time_text = font.render(text, 1, [0, 0, 0]) # show now time self.image = time_text self.speed = speed self.rect = self.image.get_rect() self.rect.left, self.rect.top = location def move(self): self.rect = self.rect.move(self.speed) if self.rect.left < 0 or self.rect.left > screen.get_width() - self.image.get_width(): self.speed[0] = -self.speed[0] if self.rect.top < 0 or self.rect.top > screen.get_height() - self.image.get_height(): self.speed[1] = -self.speed[1] pygame.init() screen = pygame.display.set_mode([640, 480]) my_time_picture = TextPicture([1, 1], [50, 50]) while 1: screen.fill([255, 255, 255]) my_time_picture.move() screen.blit(my_time_picture.image, my_time_picture.rect) pygame.display.flip() for event in pygame.event.get(): if event.type == pygame.QUIT: sys.exit()

I am designing a clock which can move in the screen. But what my code can do now is to show a invariant time. I want to clicking and count the time. My invariable clock picture

And I want to make my clock more beautiful, but don't know how. I will be super grateful if anyone can make any suggestions.

Your clock does not update because you never update its value... — Jongware
– Jongware, Commented Aug 20, 2016 at 11:54
"How do I make my clock more beautiful?" is not an on-topic question for Stack Overflow. — MattDMo
– MattDMo, Commented Aug 20, 2016 at 12:13

martineau · Accepted Answer · 2016-08-21 03:38:00Z

You could do it by using pygame.time.set_timer() to make "tick events" be generated which cause the clock's image to be updated when encountered in the event processing loop.

To make implementing this easier, an update() method could be added to the DigitalClock class (which is what I renamed your generic TextPicture class) which only updates the image, but leaving the current location alone:

import datetime import sys import time import pygame class DigitalClock(pygame.sprite.Sprite): def __init__(self, speed, location): pygame.sprite.Sprite.__init__(self) self.speed = speed self.font = pygame.font.Font(None, 40) self.rect = pygame.Rect(location, (0, 0)) # placeholder self.update() def update(self): location = self.rect.left, self.rect.top # save position time_text = datetime.datetime.now().strftime("%H:%M:%S") self.image = self.font.render(time_text, 1, [0, 0, 0]) self.rect = self.image.get_rect() self.rect.left, self.rect.top = location # restore position def move(self): self.rect = self.rect.move(self.speed) if (self.rect.left < 0 or self.rect.left > screen.get_width()-self.image.get_width()): self.speed[0] = -self.speed[0] if (self.rect.top < 0 or self.rect.top > screen.get_height()-self.image.get_height()): self.speed[1] = -self.speed[1]

Following that, you'd need to modify the processing to be something along these lines:

pygame.init() framerate_clock = pygame.time.Clock() screen = pygame.display.set_mode([640, 480]) my_digital_clock = DigitalClock([1, 1], [50, 50]) TICK_EVENT = pygame.USEREVENT + 1 pygame.time.set_timer(TICK_EVENT, 1000) # periodically create TICK_EVENT while True: for event in pygame.event.get(): if event.type == TICK_EVENT: my_digital_clock.update() # call new method if event.type == pygame.QUIT: pygame.quit() sys.exit() screen.fill([255, 255, 255]) my_digital_clock.move() screen.blit(my_digital_clock.image, my_digital_clock.rect) framerate_clock.tick(60) # limit framerate pygame.display.flip()

You could make it more beautiful by using a different font and color. Generally anything that made it look more realistic would be an improvement. It might be cool to make the colons between the digit characters blink on and off (using a similar technique).

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