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我正在尝试使用 Pygame 的 Clock.tick,但它不存在。我很肯定 Pygame 有它用于 Python 3,即使我使用dir(pygame.time.Clock),它仍然不存在。我不确定我是否做错了什么,或者 Pygame 在 Python 3 中没有它。

这是我的代码:

import pygame, random, sys
from pygame.locals import *

class Pong_Ball(object):
    def __init__(self, screen, screen_height, screen_width):
        self.screen = screen
        self.screen_height = screen_height
        self.screen_width = screen_width

    def update(self):
        #pong ball's properties
        self.ball_color = 191,191,191
        self.pos_x = 100
        self.pos_y = 100
        self.vel_x = 1
        self.vel_y = 1

        while True:
            for event in pygame.event.get():
                if event.type == QUIT:
                    sys.exit()

            #clear the screen
            self.screen.fill((0,50,100))

            #move the pong ball
            self.pos_x += self.vel_x
            self.pos_y += self.vel_y

            #keep the ball on the screen
            if self.pos_x > self.screen_width or self.pos_x < 0:
                self.vel_x = -self.vel_x
            if self.pos_y > self.screen_height or self.pos_y < 0:
                self.vel_y = -self.vel_y

            #draw the pong ball
            self.position = self.pos_x, self.pos_y
            pygame.draw.circle(self.screen, self.ball_color, self.position, 10)

            #update the display
            pygame.time.Clock.tick(60)
            pygame.display.update()

def main():
    pygame.init()
    screen = pygame.display.set_mode((800,600))
    ball = Pong_Ball(screen, 600, 800)
    ball.update()

main()
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2 回答 2

5

啊。文档虽然完全标准,但可能有点令人困惑。即使他们写Clock.tick了 ,也不意味着它是类的静态方法。你在一个实例上调用它:

>>> import pygame
>>> clock = pygame.time.Clock()
>>> clock
<Clock(fps=0.00)>
>>> clock.tick
<built-in method tick of Clock object at 0xb402b408>
>>> clock.tick()
14487
>>> clock.tick()
836

要确认它的行为:

>>> import time
>>> for i in range(5):
...     print clock.tick()
...     time.sleep(0.17)
...     
22713
172
171
171
172
于 2012-12-08T22:24:59.333 回答
1

替换pygame.time.Clock.tick(60)pygame.time.Clock().tick(60).

于 2012-12-16T14:17:31.407 回答