PyGame在Python 3.8.3中将控制器操纵杆向右移动时陷入无限循环

Question

我正在尝试使用我的XB1控制器通过PyGame控制无人机，我正在运行python 3.8.3和pygame 1.9.6。收集控制器输入很好，但是，我打算让该程序在用户每次向右握住操纵杆帽子时增加。每当我将控制器操纵杆向右移动而不希望更新轴值时，代码就会陷入无限循环。

代码：

def aileron_right():
    axis = joystick.get_axis(i)
    degree = 0
    while(joystick.get_axis(i) >= 0.999969482421875):
        print(joystick.get_axis(i))
        for degree in range(90):
            if(joystick.get_axis(i) >= 0.999969482421875):
                degree +=1
                print("UAV AILERON RIGHT DEGREE:",degree)
            else:
                break
                joystick.init()
aileron_right()

我尝试将其更改为IF语句，以查看循环是否将停止，并且我已将增量语句移至ELSE语句，但无济于事。任何建议将不胜感激。

编辑：我已在下面包含完整的代码。

import pygame
import time
BLACK = (0, 0, 0)
WHITE = (255, 255, 255)
class TextPrint(object):
    def __init__(self):
        """ Constructor """
        self.reset()
        self.x_pos = 10
        self.y_pos = 10
        self.font = pygame.font.Font(None, 20) 
    def print(self, my_screen, text_string):
        """ Draw text onto the screen. """
        text_bitmap = self.font.render(text_string, True, BLACK)
        my_screen.blit(text_bitmap, [self.x_pos, self.y_pos])
        self.y_pos += self.line_height
    def reset(self):
        """ Reset text to the top of the screen. """
        self.x_pos = 10
        self.y_pos = 10
        self.line_height = 15

    def indent(self):
        """ Indent the next line of text """
        self.x_pos += 10

    def unindent(self):
        """ Unindent the next line of text """
        self.x_pos -= 10
pygame.init()
size = [500, 700]
screen = pygame.display.set_mode(size)
pygame.display.set_caption("My Game")
done = False
clock = pygame.time.Clock()
pygame.joystick.init()
textPrint = TextPrint()
while not done:
    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()
    textPrint.print(screen, "Number of joysticks: {}".format(joystick_count))
    textPrint.indent()
    for i in range(joystick_count):
        joystick = pygame.joystick.Joystick(i)
        joystick.init()
        textPrint.print(screen, "Joystick {}".format(i))
        textPrint.indent()
        name = joystick.get_name()
        textPrint.print(screen, "Joystick name: {}".format(name))
        axes = joystick.get_numaxes()
        textPrint.print(screen, "Number of axes: {}".format(axes))
        textPrint.indent()
        for i in range(axes):
            joystick.init()
            axis = joystick.get_axis(i)
            textPrint.print(screen, "Axis {} value: {:>6.3f}".format(i, axis))
            degree = 0
            if(joystick.get_axis(i) >= 0.966):
                print("UAV AILERON RIGHT")
                degree = 0
                while(joystick.get_axis(i) >= 0.966):
                    while(degree in range(10)):
                        degree+=1
                        print(degree+1)
                print("UAV AILERON LEFT")
                pygame.init()
                '''while(joystick.get_axis(i) >= float(0.097)):
                    print("hello")'''
        textPrint.unindent()
        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()
        hats = joystick.get_numhats()
        textPrint.print(screen, "Number of hats: {}".format(hats))
        textPrint.indent()
        for i in range(hats):
            hat = joystick.get_hat(i)
            textPrint.print(screen, "Hat {} value: {}".format(i, str(hat)))
            if(joystick.get_hat(i) == (0,1)):
               print("UAV PITCH UP")
            elif(joystick.get_hat(i) == (0,-1)):
                print("UAV PITCH DOWN")
        textPrint.unindent()
        textPrint.unindent()
    pygame.display.flip()
clock.tick(100)
pygame.quit()

Answer 1

我尚不清楚您想要的结果是什么，但是要停止循环，请删除一会儿。根据您每次戴上帽子正确时增加的要求，类似以下的内容可能会有所帮助。目前尚不清楚在您的问题中变量i的位置，因此我将其复制为原样。

RIGHT_MAX = 0.999969

def isAileronRight( joystick, index ):
    """ Return True of the joystick hat is positioned right """
    result = False
    axis = joystick.get_axis( index )
    if ( axis > RIGHT_MAX ):
        result = True
    print( "Joystick at %0.10f" % ( axis ) )
    return result


hat_right_already = False    # is the hat still to the right?
hat_right_count   = 0

# Main loop
while not finsihed:
    [...]

    # Count the number of times the hat is moved to the right
    if ( isAileronRight( joystick, i ) ):
        if ( not hat_right_already ):
            hat_right_count += 1
            hat_right_already = True
    else:
        hat_right_already = False   # hat no longer position right