/// <summary>
    /// Create a new instance of <see cref="MouseInput"/> that handles specified mouse button.
    /// </summary>
    /// <param name="button">Mouse button.</param>
    public MouseInput(MouseButton button)
    {
        if (button==MouseButton.None)
        {
            Debug.LogError("button can't be MouseButton.None");
        }

        mAxis   = MouseAxis.None;
        mButton = button;
    }

 public string GetName(MouseAxis.Axis axis)
 {
     switch (axis)
     {
         case MouseAxis.Axis.ScrollWheel:    return "ScrollWheel";
         case MouseAxis.Axis.MouseX:         return "Mouse X";
         case MouseAxis.Axis.MouseY:         return "Mouse Y";
     }
     return "None";
 }

    /// <summary>
    /// Create a new instance of <see cref="MouseInput"/> that handles specified mouse axis.
    /// </summary>
    /// <param name="axis">Mouse axis.</param>
    /// <param name="modifiers">Key modifiers.</param>
    public MouseInput(MouseAxis axis, KeyModifier modifiers = KeyModifier.NoModifier)
    {
        if (axis == MouseAxis.None)
        {
            Debug.LogError("axis can't be MouseAxis.None");
        }

        mAxis      = axis;
        mButton    = MouseButton.None;
        mModifiers = modifiers;

        mCachedToString = null;
    }

 /// <summary>
 /// Constructs an InputAction which tracks relative mouse movement.
 /// </summary>
 /// <param name="playerIndex">The index of the player using this input.</param>
 /// <param name="buttonAction">What state the button should be in to activate.</param>
 /// <param name="axis">The axis of movement to be tracked.</param>
 /// <param name="sensitivity">
 /// How sensitive the mouse is.
 /// A sensitivity of 4.0 and movement of 2 pixels will have a Degree of 0.5.</param>
 /// <param name="deadZoneMin">The minimum Degree which will not be sensed.</param>
 /// <param name="deadZoneMax">The maximum Degree which will not be sensed.</param>
 public MouseMovementInputAction(
     PlayerIndex playerIndex,
     ButtonAction buttonAction,
     MouseAxis axis,
     float sensitivity,
     float deadZoneMin,
     float deadZoneMax)
     : base(playerIndex, buttonAction)
 {
     mMouseAxis = axis;
     mSensitivity = sensitivity;
     mDeadZoneMax = deadZoneMax;
     mDeadZoneMin = deadZoneMin;
     previousX = Microsoft.Xna.Framework.Input.Mouse.GetState().X;
     previousY = Microsoft.Xna.Framework.Input.Mouse.GetState().Y;
 }

        public MouseAxisSource(MouseAxis axis)
        {
            this.axis = axis;

            switch (axis)
            {
                case MouseAxis.Horizontal:
                    axisName = "Mouse X";
                    description = "Mouse Horizontal";
                    break;

                case MouseAxis.Vertical:
                    axisName = "Mouse Y";
                    description = "Mouse Vertical";
                    break;

                default:
                    throw new Exception("Unexpected axis value.");
            }
        }

 /// <summary>
 /// Create new <see cref="KeyMapping"/> with specified name and inputs.
 /// </summary>
 /// <returns>Created KeyMapping.</returns>
 /// <param name="name">KeyMapping name.</param>
 /// <param name="primary">Primary input.</param>
 /// <param name="secondary">Secondary input.</param>
 /// <param name="third">Third input.</param>
 public static KeyMapping SetKey(string name, MouseAxis primary, KeyCode secondary, KeyCode third)
 {
     return SetKey(name, ArgToInput(primary), ArgToInput(secondary), ArgToInput(third));
 }

 public AbsoluteMousePositionOutput(MouseAxis axis = MouseAxis.X)
 {
     this.Axis = axis;
 }

 /// <summary>
 /// Create new <see cref="KeyMapping"/> with specified name and inputs.
 /// </summary>
 /// <returns>Created KeyMapping.</returns>
 /// <param name="name">KeyMapping name.</param>
 /// <param name="primary">Primary input.</param>
 /// <param name="secondary">Secondary input.</param>
 /// <param name="third">Third input.</param>
 public static KeyMapping setKey(string name, CustomInput primary, KeyCode secondary, MouseAxis third)
 {
     return setKey(name, argToInput(primary), argToInput(secondary), argToInput(third));
 }

 protected void SetUp()
 {
     mouse = new FakeMouse();
     instance = new MouseAxis(mouse);
 }

 /// <summary>
 /// Convert argument to <see cref="CustomInput"/>.
 /// </summary>
 /// <returns>Converted CustomInput.</returns>
 /// <param name="arg">Some kind of argument.</param>
 private static CustomInput ArgToInput(MouseAxis arg)
 {
     return new MouseInput(arg);
 }

        protected void RelateMapWithMouseAxis(Maps map, Dictionary<MouseAxis, HashSet<Maps>> mapsPerMouseAxis, MouseAxis axis)
        {
            if (!mapsPerMouseAxis.ContainsKey(axis))
                mapsPerMouseAxis.Add(axis, new HashSet<Maps>());

            mapsPerMouseAxis[axis].Add(map);
        }