使用Unity UNET同步变量

Question

我想做什么·启动应用程序1、应用程序2·如果我在应用程序1中按下按钮，即使在应用程序2中也会按下该按钮(更改单击事件或bool类型变量)

我尝试的(我将Unity文件放在这里) https://drive.google.com/open?id=1aV-1SiB56L3JGVzWqAmqc85PYFNW1268

将以下内容添加到该按钮的对象中，单击

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;

public class MoviePlay : NetworkBehaviour {
    [SyncVar]
    bool IsPlay = false;

    void Update(){
        if(IsPlay){
            Debug.Log("再生中");
        }        
    }

    public void OnClick(){
        CmdOnClick();
    }
    [Command]
    void CmdOnClick(){
        IsPlay = true;
    }
}

结果:控制台显示未找到%1的同步消息的目标，并且未同步

-添加

我试过了。PushButton(播放器对象)

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
using UnityEngine.Networking;

public class PushButton : NetworkBehaviour {
    [SerializeField]
    GameObject DebugScript;

    public void OnClickButton(){
        NetworkInstanceId target = DebugScript.GetComponent<NetworkIdentity>().netId;
        CmdSendMessageToServer(target, "DebugText");
    }
    [Command]
    public void CmdSendMessageToServer (NetworkInstanceId target, string message)
    {
        NetworkServer.FindLocalObject(target).SendMessage(message);
    }
}

DebugScript

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;

public class DebugScript : MonoBehaviour {
    void DebugText(){
        Debug.Log("再生");
    }
}

Answer 1

命令只能在播放器对象上调用。因此，如果它不是本地播放器，命令就不会被调用。您必须将该函数移动到player对象，并调用按钮上的方法。

我没有在播放器上创建成堆的方法，而是只创建了一个方法，只利用每个GameObject的SendMessage方法。我在player对象上有一个名为CmdSendMessageToServer的方法，它有两个参数，一个NetworkInstanceId和一个string。它看起来有点像这样...

[Command]
public void CmdSendMessageToServer (NetworkInstanceId target, string message)
{
     NetworkServer.FindLocalObject(target).SendMessage(message);
}

将按钮的'netId‘( NetworkInstanceId)变量传递给上面的函数，以及要调用的方法的名称(在本例中为OnClick)。

希望这能有所帮助！

编辑:为了清楚起见，您应该在player对象上创建一个单独的类。就像下面这样...

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;

public class TestNetworkPlayer : NetworkBehaviour 
{
     //a singleton for the CLIENT
     public static TestNetworkPlayer local;

     public override void OnStartLocalPlayer ()
     {
        base.OnStartLocalPlayer();
        //so whenever we access TestNetworkPlayer.local,
        //it will ALWAYS be looking for the LOCAL player on the client we use
        local = this;
     }

    [Command]
    public void CmdSendMessageToServer(NetworkInstanceId target, string message)
    {
        NetworkServer.FindLocalObject(target).SendMessage(message);
    }
}

然后在你的'MoviePlay‘脚本中，你可以使用下面的代码...

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.Networking;

public class MoviePlay : NetworkBehaviour {
    [SyncVar]
    bool IsPlay = false;

    void Update(){
        if(IsPlay){
            Debug.Log("再生中");
        }        
    }

    //called when the button is clicked
    public void OnClick(){
        TestNetworkPlayer.local.CmdSendMessageToServer (netId, "ServerOnClick");
    }

    //ONLY called on the server, and then IsPlay should change on all clients as well
    void ServerOnClick(){
        IsPlay = true;
    }
}

希望这能澄清这一点！