Gamepad API Shim

This standardises the use of the Gamepad API across browsers where possible using a Flash fallback.

Browser Support

• Internet Explorer: 9 or higher
• Chrome/Opera: latest and previous stable
• Konqueror: 4.11 or higher
• Firefox: latest and previous stable, ESR

Other browsers may work, but they will not be supported.

Known Issues

Specification Conformance

• Calling Object.prototype.toString on a Gamepad, GamepadButton or GamepadEvent button will return an incorrect value

• new GamepadEvent().gamepad is implemented as a data property on the instance itself, not a getter on GamepadEvent.prototype.gamepad.

• navigator.getGamepads returns a different object every time

• If __proto__ and Object.setPrototypeOf are not supported:

  • constructor and toString will be own properties on the instance instead of the prototype
  • The prototype of GamepadEvent instances will be Event.prototype rather than a custom prototype object

Other Issues

• Y axes are flipped (i.e. -1 is up, 1 is down), not sure if there is a way to fix this
• Flash IDs do not match those given by native Gamepad API implementations