Unity3D使用HORIZONTAL轴上的鼠标移动相机

Question

我刚刚写了这段代码：

public float sensitivity = 5.0f;
public float smoothing = 2.0f;
Vector2 smoothV;
Vector2 mouseLook;

GameObject character;

// Use this for initialization
void Start () {
    character = transform.parent.gameObject; 
}

// Update is called once per frame
void Update () {


    var mouse = new Vector2(Input.GetAxisRaw("Mouse X"), Input.GetAxisRaw("Mouse Y"));
    mouse = Vector2.Scale(mouse, new Vector2(sensitivity * smoothing, sensitivity * smoothing));

    smoothV.x = Mathf.Lerp(smoothV.x, mouse.x, 1f / smoothing);
    smoothV.y = Mathf.Lerp(smoothV.y, mouse.y, 1f / smoothing);
    mouseLook += smoothV;

    transform.localRotation = Quaternion.AngleAxis(-mouseLook.y, Vector3.right);
    character.transform.localRotation = Quaternion.AngleAxis(mouseLook.x, character.transform.up);
}

除了在水平轴上移动相机外，它的工作原理非常好。我认为Gameobject的初始化是错误的吗？

提前致谢！