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为了测试我的 Unity 应用程序的网络部分，我有一个根据键盘输入移动的“模仿”游戏对象。网络管理器组件 (1) 获取“模仿者”的移动数据并使用 PUT 将其发送到 node.js 本地主机服务器，并且 (2) 从本地主机取回并将其应用于“模仿者”对象。该程序运行良好，但过了一会儿我得到了错误：

IOException: Too many open files

Unity 编辑器中还弹出一个窗口，提示“打开文件失败”，然后编辑器崩溃。我认为这是由于内存没有正确处理造成的，但还没有弄清楚究竟是如何处理的。这是游戏管理器代码：

网络管理器.cs

public class Data
{
    public float posX;
    ...

    public Data(float posX...)
    {
        this.posX = posX;
        ...
    }
}

public class NetworkingManager : MonoBehaviour
{

    private GameObject imitator;
    private GameObject imitatee;

    private Data data;
    private string jsonData;
    private Data receivedData;

    private string uri = "http://localhost:3000/";

    private void Awake()
    {
        // Assign references
        ...
    }

    private IEnumerator SendData()
    {
        data = new Data(
            imitatee.transform.position.x,
            ...
            );

        jsonData = JsonUtility.ToJson(data);

        using (UnityWebRequest req = UnityWebRequest.Put(uri, jsonData))
        {
            req.SetRequestHeader("Content-Type", "application/json");
            yield return req.SendWebRequest();
    

            if (req.isNetworkError || req.isHttpError)
            {
                Debug.Log(req.error);
            }
        }

    }

    private IEnumerator ReceiveData()
    {

        using (UnityWebRequest req = UnityWebRequest.Get(uri))
        {
            yield return req.SendWebRequest();

            if (req.isNetworkError)
            {
                Debug.Log(req.error);
            }
            else
            {
                receivedData = JsonUtility.FromJson<Data>(req.downloadHandler.text);

                imitator.transform.position = new Vector3(
                    receivedData.posX,
                    ...
                    );

                ...
            }
        }
        
    }

    void Update()
    {
        StartCoroutine(SendData());
        StartCoroutine(ReceiveData());
    }
}

此外，node.js 后端没有记录错误。

后端.js

const express = require('express')
const app = express()
app.use(express.json())
const port = 3000
var data

app.get('/', (req, res) => {
  if (data) res.json(data)
})

app.put('/', (req, res) => {
  data = req.body
  console.log("Received " + req.body) 
})

app.listen(port, () => {
  console.log(`App listening at http://localhost:${port}`)
})

感谢你的帮助！

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0 回答 0