Steam VR（HTCVIVE）按键调用

    SteamVR_TrackedObject trackdeObjec;  
  
    void Awake() {  
        //获取手柄上的这个组件  
        trackdeObjec = GetComponent<SteamVR_TrackedObject>();  
    } 
void FixedUpdate()  
    {   //获取手柄输入  
        var device = SteamVR_Controller.Input((int)trackdeObjec.index);  
        //以下是api中复制出来的按键列表  
        /*       public class ButtonMask 
           { 
               public const ulong System = (1ul << (int)EVRButtonId.k_EButton_System); // reserved 
               public const ulong ApplicationMenu = (1ul << (int)EVRButtonId.k_EButton_ApplicationMenu); 
               public const ulong Grip = (1ul << (int)EVRButtonId.k_EButton_Grip); 
               public const ulong Axis0 = (1ul << (int)EVRButtonId.k_EButton_Axis0); 
               public const ulong Axis1 = (1ul << (int)EVRButtonId.k_EButton_Axis1); 
               public const ulong Axis2 = (1ul << (int)EVRButtonId.k_EButton_Axis2); 
               public const ulong Axis3 = (1ul << (int)EVRButtonId.k_EButton_Axis3); 
               public const ulong Axis4 = (1ul << (int)EVRButtonId.k_EButton_Axis4); 
               public const ulong Touchpad = (1ul << (int)EVRButtonId.k_EButton_SteamVR_Touchpad); 
               public const ulong Trigger = (1ul << (int)EVRButtonId.k_EButton_SteamVR_Trigger); 
           } 
           */  
  
           //同样是三种按键方式，以后不做赘述  
        if (device.GetTouch(SteamVR_Controller.ButtonMask.Trigger)) {  
            Debug.Log("按了 “trigger” “扳机键”");  
             
            //右手震动  
            //拉弓类似操作应该就是按住trigger（扳机）gettouch时持续调用震动方法模拟弓弦绷紧的感觉。  
            var deviceIndex2 = SteamVR_Controller.GetDeviceIndex(SteamVR_Controller.DeviceRelation.Rightmost);  
            SteamVR_Controller.Input(deviceIndex2).TriggerHapticPulse(500);  
  
        }  
        if (device.GetTouchDown(SteamVR_Controller.ButtonMask.Trigger))  
        {   Debug.Log("按下了 “trigger” “扳机键”");  
  
        }  
        if (device.GetTouchUp(SteamVR_Controller.ButtonMask.Trigger)) {  
            Debug.Log("松开了 “trigger” “扳机键”");  
            
            //左手震动  
            var deviceIndex = SteamVR_Controller.GetDeviceIndex(SteamVR_Controller.DeviceRelation.Leftmost);  
            SteamVR_Controller.Input(deviceIndex).TriggerHapticPulse(3000);  
             
            //右手震动  
            var deviceIndex1 = SteamVR_Controller.GetDeviceIndex(SteamVR_Controller.DeviceRelation.Rightmost);  
            SteamVR_Controller.Input(deviceIndex1).TriggerHapticPulse(3000);  
        }  
  
        //这三种也能检测到 后面不做赘述  
        if(device.GetPressDown(SteamVR_Controller.ButtonMask.Trigger)) {  
            Debug.Log("用press按下了 “trigger” “扳机键”");  
        }  
        if (device.GetPress(SteamVR_Controller.ButtonMask.Trigger))  
        {  
            Debug.Log("用press按了 “trigger” “扳机键”");  
        }  
        if (device.GetPressUp(SteamVR_Controller.ButtonMask.Trigger))  
        {  
            Debug.Log("用press松开了 “trigger” “扳机键”");  
        }  
  
        //system键 圆盘下面那个键   
        // reserved 为Steam系统保留,用来调出Steam系统菜单 因此貌似自己加的功能没啥用  
        if (device.GetTouchDown(SteamVR_Controller.ButtonMask.System))  
        {  
            Debug.Log("按下了 “system” “系统按钮/Steam”");  
        }  
        if (device.GetPressDown(SteamVR_Controller.ButtonMask.System))  
        {  
            Debug.Log("用press按下了 “System” “系统按钮/Steam”");  
        }  
  
        //ApplicationMenu键 带菜单标志的那个按键（在方向圆盘上面）  
        if (device.GetTouchDown(SteamVR_Controller.ButtonMask.ApplicationMenu))  
        {  
            Debug.Log("按下了 “ApplicationMenu” “菜单键”");  
        }  
        if (device.GetPressDown(SteamVR_Controller.ButtonMask.ApplicationMenu))  
        {  
            Debug.Log("用press按下了 “ApplicationMenu” “菜单键”");  
        }  
  
        //Grip键 两侧的键 （vive雇佣兵游戏中的换弹键），每个手柄左右各一功能相同，同一手柄两个键是一个键。  
        if (device.GetTouchDown(SteamVR_Controller.ButtonMask.Grip))  
        {  
            Debug.Log("按下了 “Grip” “ ”");  
        }  
        if (device.GetPressDown(SteamVR_Controller.ButtonMask.Grip))  
        {  
            Debug.Log("用press按下了 “Grip” “ ”");  
        }  
  
   
          
        //Axis0键 与圆盘有交互 与圆盘有关  
        //触摸触发  
        if (device.GetTouchDown(SteamVR_Controller.ButtonMask.Axis0))  
        {  
           Debug.Log("按下了 “Axis0” “方向 ”");  
        }  
        //按动触发  
        if (device.GetPressDown(SteamVR_Controller.ButtonMask.Axis0))  
        {  
            Debug.Log("用press按下了 “Axis0” “方向 ”");  
        }  

//ATouchpad键 圆盘交互  
        //触摸触发  
       if (device.GetTouchDown(SteamVR_Controller.ButtonMask.Touchpad))  
       {     
           Debug.Log("按下了 “Touchpad” “ ”");  
              
            //方法返回一个坐标 接触圆盘位置  
            Vector2 cc = device.GetAxis();  
            Debug.Log(cc);  
            // 例子：圆盘分成上下左右  
            float jiaodu = VectorAngle(new Vector2(1, 0), cc);  
            Debug.Log(jiaodu);  
            //下  
            if (jiaodu > 45 && jiaodu < 135)  
            {  
                Debug.Log("下");  
            }  
            //上  
            if (jiaodu < -45 && jiaodu > -135)  
            {  
                Debug.Log("上");  
            }  
            //左  
            if ((jiaodu < 180 && jiaodu > 135) || (jiaodu < -135 && jiaodu > -180))  
            {  
                Debug.Log("左");  
            }  
            //右  
            if ((jiaodu > 0 && jiaodu < 45) || (jiaodu > -45 && jiaodu < 0))  
            {  
                Debug.Log("右");  
            }  
        }  
        //按动触发  
        if (device.GetPressDown(SteamVR_Controller.ButtonMask.Touchpad))  
        {  
            Debug.Log("用press按下了 “Touchpad” “ ”");  
        }  
  }

//方向圆盘最好配合这个使用 圆盘的.GetAxis()会检测返回一个二位向量，可用角度划分圆盘按键数量  
    //这个函数输入两个二维向量会返回一个夹角 180 到 -180  
    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;  
    }