Cfrgtkky

I'm developing an application that uses pygame to read analog trigger values from an XBox 360-Style gamepad.
This application relies on the triggers being initialized to the neutral position, or else it results in undefined behaviour.

The problem: analog triggers are interpreted as axes in pygame and those get initialized to 0 until they receive the first user input. But the neutral position (triggers are not pressed) of the triggers is mapped to -1.0.

So, until I somehow press both triggers, the signal I receive is “half-pressed” for both triggers, although I'm not pressing anything.

Is there a way to specify the initial state of the Joystick object? I already tried to define a custom JOYAXISMOTION event which didn't help.

Minimal code example:

import pygame

import time



pygame.joystick.init()



if pygame.joystick.get_count() <= 0:

    print("No joystick or gamepad found")

    exit()



device = pygame.joystick.Joystick(0)

device.init()



print(device.get_numaxes())



while True:

    pygame.event.get()



    # here, it prints 0.0, 0.0 when not touching the triggers, 

    # until I press them

    print("Left trigger: {}t Right trigger: {}".format(device.get_axis(2),  # left trigger

                                                        device.get_axis(5)))  # right trigger



    time.sleep(0.1)