Unity_物体对象跟随鼠标移动360°旋转

    /// <summary>
    /// 对象旋转跟随鼠标移动
    /// </summary>
    public void ObjectRotateFollowMouseMove()
    {
        if(Input.GetMouseButtonDown(0))
        {
            lastMousePoint = Input.mousePosition;
        }
        else if(Input.GetMouseButton(0))
        {
            var newMousePoint = Input.mousePosition;
            var delta = lastMousePoint - newMousePoint;
            lastMousePoint = newMousePoint;
            Quaternion rotate = Quaternion.Euler(-delta.y * speed, delta.x * speed, 0);
            //TODO:可扩展
            transform.rotation = rotate * transform.rotation; //四元素相乘是角的累积
        }

    }