通过在Unity3d中按Vuforia虚拟按钮无法旋转多维数据集

Question

我在Vuforia的图像目标上添加了立方体。我还在图像目标上添加了虚拟按钮。现在，我想通过按虚拟按钮旋转立方体。为此，我实现了以下脚本。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Vuforia;

public class rotate : MonoBehaviour, IVirtualButtonEventHandler {

    public GameObject vbtn;
    public GameObject cube;
    public Renderer rend;

    // Use this for initialization
    void Start () {

        vbtn = GameObject.Find ("virtualbtn5");
        vbtn.GetComponent<VirtualButtonBehaviour> ().RegisterEventHandler (this);
        cube = GameObject.Find ("Cube");
        rend = cube.GetComponent<Renderer>();   
    }

    public void OnButtonPressed(VirtualButtonBehaviour vb){

        Debug.Log ("Button pressed");
        cube.transform.Rotate (new Vector3(0,Time.deltaTime*1000,0));
        rend.material.color = Color.blue;

    }

    public void OnButtonReleased(VirtualButtonBehaviour vb){

        Debug.Log ("Button released");
        rend.material.color = Color.red;
    }       

}

该按钮似乎在起作用，因为Debug.Log ("Button pressed");函数中的rend.material.color = Color.blue;和onButtonPressed语句可以正常工作。但是cube.transform.Rotate (new Vector3(0,Time.deltaTime*1000,0));不能旋转立方体。

简单的是该按钮可以更改多维数据集的颜色，但不会旋转多维数据集。

所以问题是如何通过按下vuforia的虚拟按钮来旋转立方体。

问题已更新：

我也尝试了以下代码，但是按一下按钮时立方体仍然不会旋转。

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using Vuforia;

public class rotate : MonoBehaviour, IVirtualButtonEventHandler {

    public GameObject vbtn;
    public GameObject cube;
    public Renderer rend;
    public bool rotateit;
    public float speed;
    // Use this for initialization
    void Start () {

        vbtn = GameObject.Find ("virtualbtn5");
        vbtn.GetComponent<VirtualButtonBehaviour> ().RegisterEventHandler (this);
        cube = GameObject.Find ("Cube");
        speed = 100f;

        rend = cube.GetComponent<Renderer>();
        rotateit = false;


    }


    void Update(){


        if (rotateit) {

            cube.transform.Rotate(new Vector3(0, Time.deltaTime * speed, 0));
        }


    }


    public void OnButtonPressed(VirtualButtonBehaviour vb){

        //Debug.Log ("Button pressed");
        //cube.transform.RotateAround(cube.transform.position, new Vector3(0, 1, 0), 10000f * Time.deltaTime);
        //cube.transform.Rotate (new Vector3(0,Time.deltaTime*1000,0));
        rend.material.color = Color.blue;
        rotateit = true;
        Debug.Log ("Button pressed "+rotateit);

    }

    public void OnButtonReleased(VirtualButtonBehaviour vb){

        //Debug.Log ("Button released");
        rend.material.color = Color.red;
        rotateit = false;
        Debug.Log ("Button released "+rotateit);
    }



}

还可以查看控制台窗口

Answer 1

如果要在按住按钮的同时旋转每一帧，但在释放按钮时停止旋转，则可以使用布尔变量来做到这一点。将其设置为true中的OnButtonPressed和false中的OnButtonReleased。在true函数的Update中检查此标志，然后旋转多维数据集。

public GameObject vbtn;
public GameObject cube;
public Renderer rend;
bool pressed = false;
public float speed = 100f;

// Use this for initialization
void Start()
{

    vbtn = GameObject.Find("virtualbtn5");
    vbtn.GetComponent<VirtualButtonBehaviour>().RegisterEventHandler(this);
    cube = GameObject.Find("Cube");
    rend = cube.GetComponent<Renderer>();
}

public void OnButtonPressed(VirtualButtonBehaviour vb)
{

    Debug.Log("Button pressed");
    pressed = true;
    rend.material.color = Color.blue;

}

public void OnButtonReleased(VirtualButtonBehaviour vb)
{

    Debug.Log("Button released");
    pressed = false;
    rend.material.color = Color.red;
}

void Update()
{
    if (pressed)
        cube.transform.Rotate(new Vector3(0, Time.deltaTime * speed, 0));
}