如何使一个带有操纵杆的机器人对角移动？

Question

我需要编写代码来控制带有操纵杆的两轮机器人的运动。我已经写了将其向前，向后移动（asx _y），转向（asx _z）以及随着一个引擎的运动而转向（asx _x）的条件。现在我们需要以某种方式为其沿对角线移动创建条件，以便在激活y和x或y轴时，它同时获取轴的两个值并沿对角线精确移动。非常感谢你。对不起，我的英语

import socket
import pygame
import time

pygame.init()
pygame.display.set_mode((640, 480))

rc_socket = socket.socket()
try:
    rc_socket.connect(('192.168.1.102', 1234)) # connect to robot
except socket.error:
    print("could not connect to socket")

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

while True:
    events = pygame.event.get()
    for event in events:
        if event.type == pygame.KEYDOWN:
            if event.key == pygame.K_LEFT:
                u1 = -1.0
                u2 = 1.0
                print("turn left: ({},{})".format(u1, u2))
            elif event.key == pygame.K_RIGHT:
                u1 = 1.0
                u2 = -1.0
                print("turn right: ({},{})".format(u1, u2))
            elif event.key == pygame.K_UP:
                u1 = -1.0
                u2 = -1.0
                print("forward: ({},{})".format(u1, u2))
            elif event.key == pygame.K_DOWN:
                u1 = 1.0
                u2 = 1.0
                print("forward: ({},{})".format(u1, u2))
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
        `enter code here`elif event.type == pygame.KEYUP:
            u1 = 0
            u2 = 0
            print("key released, resetting: ({},{})".format(u1, u2))
            rc_socket.send('({},{})\n'.format(u1, u2).encode())


        if joystick:
            asix_x = joystick.get_axis(2)
            asix_y = joystick.get_axis(1)
            asix_z = joystick.get_axis(4)


        if asix_x < -0.12:
            u1 = -asix_x
            u2 = 0
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)
        elif asix_x and asix_y > 0.15:
            u1 = 0
            u2 = asix_x
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            pygame.time.delay(100)
            u1 = -asix_y
            u2 = -asix_y
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)

        elif asix_x > 0.12:
            u1 = 0
            u2 = asix_x
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)
        elif asix_y < -0.12:
            u1 = -asix_y
            u2 = -asix_y
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)

        elif asix_y > 0.12:
            u1 = -asix_y
            u2 = -asix_y
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)
        elif asix_z > 0.12:
            u1 = asix_z
            u2 = -asix_z
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)
        elif asix_z < -0.12:
            u1 = asix_z
            u2 = -asix_z
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)
        else:
            u1 = 0.0
            u2 = 0.0
            rc_socket.send('({},{})\n'.format(u1, u2).encode())
            time.sleep(0.1)