: number The order of the gamepad in the gamepad list.
(b: KGamepadButton): boolean If certain button is pressed.
(b: KGamepadButton): boolean If certain button is held down.
(b: KGamepadButton): boolean If certain button is released.
(stick: KGamepadStick): Vec2 Get the value of a stick.
(b: KGamepadButton): number Get the 0-1 analog value of the button
(useful for ltrigger and rtrigger buttons)
}