Reference TJoystick

  TJoystick = class
  public
    { Create takes ownership of a joystick opened by SDL, and of its game
      controller if it is a gamepad }
    constructor Create(Joystick, Controller: Pointer);
    destructor Destroy; override;
    { The name of the joystick }
    property Name: string read FName;
    { Attached is False once the joystick is disconnected }
    property Attached: Boolean read GetAttached;
    { IsGamepad is True if the joystick has the named buttons and axes }
    property IsGamepad: Boolean read GetIsGamepad;
    { A named button is True while it is held down, and is always False if the
      joystick is not a gamepad }
    property GamepadButtons[Button: TGamepadButton]: Boolean read GetGamepadButton;
    { A named axis is always 0 if the joystick is not a gamepad }
    property GamepadAxes[Axis: TGamepadAxis]: Single read GetGamepadAxis;
    property AxisCount: Integer read GetAxisCount;
    { An axis ranges from -1 to 1 and rests at 0, other than a trigger which
      rests at -1 on many gamepads. Typically axes 0 and 1 are x and y of the
      first stick, and y is 1 when the stick is pulled down. The layout differs
      by joystick. }
    property Axes[Index: Integer]: Single read GetAxis;
    property ButtonCount: Integer read GetButtonCount;
    { A button is True while it is held down }
    property Buttons[Index: Integer]: Boolean read GetButton;
    { The number of hats, and the position of each }
    property HatCount: Integer read GetHatCount;
    property Hats[Index: Integer]: TJoystickHat read GetHat;
    { The number of trackballs, and the movement of each }
    property TrackballCount: Integer read GetTrackballCount;
    property Trackballs[Index: Integer]: TJoystickTrackball read GetTrackball;
  end;