pygame中的While循环

我试图将PS4输入添加到我的python代码中,所以我希望每当我按下按钮时,它都会打印,只要按住一次,而不仅仅是一次。我尝试了许多不同的while循环,但它只是向我的控制台发送文本,所以我知道我做错了什么。任何帮助都将不胜感激。

import pygame


BLACK    = (   0,   0,   0)
WHITE    = ( 255, 255, 255)


class TextPrint:
    def __init__(self):
        self.reset()
        self.font = pygame.font.Font(None, 25)

    def print(self, screen, textString):
        textBitmap = self.font.render(textString, True, BLACK)
        screen.blit(textBitmap, [self.x, self.y])
        self.y += self.line_height

    def reset(self):
        self.x = 30
        self.y = 30
        self.line_height = 20

    def indent(self):
        self.x += 10

    def unindent(self):
        self.x -= 10


pygame.init()


size = [800, 500]
screen = pygame.display.set_mode(size)

pygame.display.set_caption("My Game")

done = False

clock = pygame.time.Clock()

pygame.joystick.init()

textPrint = TextPrint()

while done==False:
    for event in pygame.event.get():
        if event.type == pygame.QUIT:
            done=True 


        if event.type == pygame.JOYBUTTONDOWN:
            print("Joystick button pressed.")
        if event.type == pygame.JOYBUTTONUP:
            print("Joystick button released.")


    screen.fill(WHITE)
    textPrint.reset()

    joystick_count = pygame.joystick.get_count()

    for i in range(joystick_count):
        joystick = pygame.joystick.Joystick(i)
        joystick.init()

        name = joystick.get_name()
        textPrint.print(screen, "Joystick name: {}".format(name) )

        buttons = joystick.get_numbuttons()
        textPrint.print(screen, "Number of buttons: {}".format(buttons) )
        textPrint.indent()

        for i in range( buttons ):
            button = joystick.get_button( i )
            textPrint.print(screen, "Button {:>2} value: {}".format(i,button) )
        textPrint.unindent()

        pygame.display.flip()

clock.tick(20)

pygame.quit ()     

官方修改代码 pygame documentation
这也是一个附带问题,但不是重点: 我如何确切地知道正在按下哪个按钮并在if语句中使用它?