Input.js

Input.js is a JavaScript library to map controller and OS-specific USB enumerations provided by the Gamepad API in Mozilla Firefox to an ideal virtual gamepad. While developed for use in Paladin, Mozilla's open source 3D gaming initiative, Input.js is designed to be used by any web application.

Info

• License: MIT (see included LICENSE file for full license)
• Author: Jon Buckley website
• Github Repo: https://github.com/jbuck/input.js

Supported Controllers

• Logitech Chillstream on Windows
• Playstation 3 on Mac OS X
• Xbox 360 on Mac OS X and Windows

How to use Input.js in three steps

• Load your copy of Input.js into your webpage:

<script type="text/javascript" src="input.js"></script>

• Create the Device object:

var gamepad;
window.addEventListener("MozGamepadConnected", function(e) {
  gamepad = new Input.Device(e.gamepad);
});

• Use it:

if (gamepad.buttons.BUTTON_A) {
  player.jump();
}
player.move(gamepad.buttons.LEFT_STICK_X, gamepad.buttons.LEFT_STICK_Y);

The API

You should read the Gamepad API as a background primer. There are 5 properties on the Input.Device object:

• axes - An object that holds all of axis properties. They each return a value from -1.0 to +1.0.
  • Left_Stick_X
  • Left_Stick_Y
  • Right_Stick_X
  • Right_Stick_X
• buttons - An object that holds all of the button properties. They each return a value from 0.0 to 1.0. Buttons can be digital or analog
  • A_Button - Cross on the PS3
  • B_Button - Circle on the PS3
  • X_Button - Triangle on the PS3
  • Y_Button - Square on the PS3
  • Left_Stick_Button - L3 on the PS3
  • Right_Stick_Button - R3 on the PS3
  • Start_Button -
  • Back_Button - Select on the PS3
  • Home_Button - Xbox or PS button in the middle of the controller
  • Pad_Up - Up on the digital pad
  • Pad_Down - Down on the digital pad
  • Pad_Left - Left on the digital pad
  • Pad_Right - Right on the digital pad
  • Left_Trigger_1 - Left Bumper on the Xbox 360, L1 on the PS3
  • Right_Trigger_1 - Right Bumper on the Xbox 360, R1 on the PS3
  • Left_Trigger_2 - Left Trigger on the Xbox 360, L2 on the PS3
  • Right_Trigger_2 - Right Trigger on the Xbox 360, R2 on the PS3
• connected - A boolean that returns the current connected state of the device
• id - A string with the USB vendor ID, USB device ID, and OS device name
• index - A number starting at zero that represents the order the device was plugged in. Persists across reconnects.