unity开发 HTC vive手柄控制 手柄上各个按钮的点击事件

HTC vive手柄各个按钮的响应事件，已实现的功能是按手柄上的原盘上下左右键移动，是平移，不是射线瞬移。这种方式在眼镜里太晕了。

using UnityEngine;
using System.Collections;

public class Move : MonoBehaviour {

    /// 
  
    /// 手柄位置  
    /// 
  
    SteamVR_TrackedObject tracked;


    /// 
  
    /// 玩家  
    /// 
  
    public Transform player;

    /// 
  
    /// 方向   
    /// 
  
    public Transform dic;

    /// 
  
    /// 速度  
    /// 
  
    public float speed;

    void Awake()
    {
        //获取手柄控制  
        tracked = GetComponent();

    }

    // Use this for initialization  
    void Start()
    {

    }

    // Update is called once per frame  
    void FixedUpdate()
    {
        var deviceright = SteamVR_Controller.Input((int)tracked.index);


        //按下圆盘键  
        if (deviceright.GetPress(SteamVR_Controller.ButtonMask.Touchpad))
        {

            Vector2 cc = deviceright.GetAxis();

            float angle = VectorAngle(new Vector2(1, 0), cc);

            //下  
            if (angle > 45 && angle < 135)
            {

                player.Translate(-dic.forward * Time.deltaTime * speed);
            }
            //上    
            else if (angle < -45 && angle > -135)
            {
                //Debug.Log("上");  
                player.Translate(dic.forward * Time.deltaTime * speed);
            }
            //左    
            else if ((angle < 180 && angle > 135) || (angle < -135 && angle > -180))
            {
                //Debug.Log("左");  
                player.Translate(-dic.right * Time.deltaTime * speed);
            }
            //右    
            else if ((angle > 0 && angle < 45) || (angle > -45 && angle < 0))
            {
                //Debug.Log("右");  
                player.Translate(dic.right * Time.deltaTime * speed);
            }
        }
        else if (deviceright.GetPressDown(SteamVR_Controller.ButtonMask.Trigger))
        {

            Debug.Log("按下扳机键");
        }
        else if (deviceright.GetPressDown(SteamVR_Controller.ButtonMask.Grip))
        {

            Debug.Log("按下手柄侧键");
        }
        else if (deviceright.GetPressDown(SteamVR_Controller.ButtonMask.ApplicationMenu))
        {

            Debug.Log("按下手柄菜单键");
        }
        else if (deviceright.GetPressDown(SteamVR_Controller.ButtonMask.ApplicationMenu))
        {

            Debug.Log("按下手柄菜单键");
        }
    }



    /// 
  
    /// 根据在圆盘才按下的位置，返回一个角度值  
    /// 
  
    ///   
    ///   
    ///   
    float VectorAngle(Vector2 from, Vector2 to)
    {
        float angle;
        Vector3 cross = Vector3.Cross(from, to);
        angle = Vector2.Angle(from, to);
        return cross.z > 0 ? -angle : angle;
    }
}