Node.JS Wii U Pro Controller and Wiimote events

test.js

'use strict';

/*
 * This handles Wii U Pro Controllers and Wiimotes, but doesn't yet detect which it is =)
 * `npm install node-hid pakkit`
 */

var HID = require('node-hid');
var pakkit = require('pakkit');

var packets = pakkit.export({
  WII_U_PRO_CONTROLLER : {
    buttons: {
      mask: [
        null, null, null, null, null, null,
        'plus', 'minus', 'home',
        null, null,
        'dup', 'ddown', 'dleft', 'dright',
        'a', 'b', 'x', 'y',
        'l', 'r',
        'zl', 'zr',
        'leftstick', 'rightstick'
      ],
      type: 'uint32le'
    },
    left: {
      type: 'joystick'
    },
    right: {
      type: 'joystick'
    }
  },
  WIIMOTE_CONTROLLER : {
    buttons: {
      mask: [
        'dleft', 'dright', 'dup', 'ddown', 'a', 'trigger',
        'plus', 'minus', 'home',
        '1', '2',
        'z', 'c'
      ],
      type: 'uint32le'
    },
    left: {
      type: 'joystick'
    }
  }
}, {
  joystick: {
    read: function(parser, attribute) {
      parser
        .int8(attribute.name + 'X')
        .int8(attribute.name + 'Y')
        .tap(function() {
          this.vars[attribute.name] = {
            x: this.vars[attribute.name + 'X'],
            y: this.vars[attribute.name + 'Y'] * -1
          };
          delete(this.vars[attribute.name + 'X']);
          delete(this.vars[attribute.name + 'Y']);
        });
    }
  }
});

/* Pro:
{
  vendorId: 0,
  productId: 0,
  path: 'Virtual_0000_0000_fafafafc',
  serialNumber: '00000000',
  manufacturer: 'Alxn1',
  product: 'Wiimote (34-af-2c-18-19-e1)',
  release: 1,
  interface: -1
}

Wiimote
{
  vendorId: 0,
  productId: 0,
  path: 'Virtual_0000_0000_fafafafd',
  serialNumber: '00000000',
  manufacturer: 'Alxn1',
  product: 'Wiimote (00-1f-32-95-3a-57)',
  release: 1,
  interface: -1 }
*/

HID.devices().forEach((function(d) {
  if(d && d.product.toLowerCase().indexOf('wiimote') !== -1) {
    console.log('Found a wiimote', d);
    var hid = new HID.HID(d.path);

    var read = function(error, data) {
      var packet = packets.WIIMOTE_CONTROLLER.read(data);

      console.log('Wiimote', packets.WIIMOTE_CONTROLLER.read(data));
      console.log('Wii U Pro Controller', packets.WII_U_PRO_CONTROLLER.read(data));
      
      hid.read(read);
    };

    hid.read(read);
  }
}));