test-for-event-driven-web-controllers-library.user.js

// ==UserScript==
// @name         Test for Event-Driven Web Controllers
// @namespace    salembeats
// @version      1.51
// @description  UPDATE: Genericized to respond well to an additional controller (Logitech F310), plus constructor, plus axes, plus nicknames.
// @author       Cuyler Stuwe (salembeats)
// @include      *
// @require      https://gist.github.com/salembeats/98cd58cfcee694e3bbc08adc3d925080/raw/0a33ea4f15df76fc54163eb12e9674bc120beb64/event-driven-web-controllers-library.js
// @noframes
// ==/UserScript==

InitializeControllerEventLoop();

window.addEventListener("controllerbutton", e => {
    console.log("Controller", e.detail.controllerIndex, `(${e.detail.controllerTypeNickname})`,
                "button", e.detail.button, `(index ${e.detail.buttonIndex})`,
                "pressed?", e.detail.pressed);
});

window.addEventListener("controlleraxis", e => {
    console.log("Controller", e.detail.controllerIndex, `(${e.detail.controllerTypeNickname})`,
                "stick", e.detail.joystick,
                "X:", e.detail.x, "Y:", e.detail.y);
});