[英]How to use UDP with Unity methods
我创建了一个Cube对象并附加了此脚本。
using UnityEngine;
using System.Collections;
public class CubeMove : MonoBehaviour {
void Start () {
}
void Update () {
}
public void Move () {
Vector3 moveVector = new Vector3(10, 0, 0);
transform.Translate(moveVector);
}
}
我想使用UDP来控制多维数据集的移动,所以我创建了UDPManager。
using UnityEngine;
using System.Collections;
using System.Net;
using System.Net.Sockets;
using System.Text;
using System.Threading;
public class UDPManager : MonoBehaviour
{
static UdpClient udp;
Thread thread;
public GameObject cube;
public CubeMove cubemove;
void Start ()
{
udp = new UdpClient(12345);
cubemove = cube.GetComponent<CubeMove>();
thread = new Thread(new ThreadStart(ThreadMethod));
thread.Start();
}
void Update ()
{
}
void OnApplicationQuit()
{
udp.Close();
thread.Abort();
}
private void ThreadMethod()
{
while(true)
{
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
byte[] receiveBytes = udp.Receive(ref RemoteIpEndPoint);
string returnData = Encoding.ASCII.GetString(receiveBytes);
Debug.Log(returnData);
if (returnData == "1\n") {
cube.SendMessage ("Move");
// or
cubemove.Move();
}
}
}
}
但是这些不适用于以下错误。
- SendMessage can only be called from the main thread.
- get_transform can only be called from the main thread.
收到udp命令时可以调用统一方法吗?
您不能从另一个线程调用Unity API。 如何在Unity中使用线程:
1 。 启动线程
2 。 在该新线程中处理输入
3 。 告诉Unity您已完成处理。 您可以通过将全局boolean
变量设置为true
来true
。 将output
数据存储在另一个全局变量中。
4 。 检查boolean
变量是否在Update()
函数中更改。 如果设置为false
则设置为false
。 过程输出...
还要移动udp = new UdpClient(12345);
从Start
函数到ThreadMethod
函数。
static readonly object lockObject = new object();
string returnData = "";
bool precessData = false;
void Start ()
{
cubemove = cube.GetComponent<CubeMove>();
thread = new Thread(new ThreadStart(ThreadMethod));
thread.Start();
}
void Update()
{
if (precessData)
{
/*lock object to make sure there data is
*not being accessed from multiple threads at thesame time*/
lock (lockObject)
{
precessData = false;
cube.SendMessage("Move");
// or
cubemove.Move();
//Process received data
Debug.Log("Received: " + returnData);
//Reset it for next read(OPTIONAL)
returnData = "";
}
}
}
private void ThreadMethod()
{
udp = new UdpClient(12345);
while (true)
{
IPEndPoint RemoteIpEndPoint = new IPEndPoint(IPAddress.Any, 0);
byte[] receiveBytes = udp.Receive(ref RemoteIpEndPoint);
/*lock object to make sure there data is
*not being accessed from multiple threads at thesame time*/
lock (lockObject)
{
returnData = Encoding.ASCII.GetString(receiveBytes);
Debug.Log(returnData);
if (returnData == "1\n")
{
//Done, notify the Update function
precessData = true;
}
}
}
}
using UnityEngine;
using System.Net.Sockets;
using System.Net;
using System.Text;
using System;
public class UDPRT: ScriptableObject {
static public string ReceivedMsg; // INPUT DATA
static private UdpClient udpc;
static IPEndPoint IP;
static private object obj;
static private AsyncCallback AC;
static byte[] DATA;
public static UDPRT CreateInstance(int Port) // RECEVE UDP
{
IP = new IPEndPoint(IPAddress.Any, Port);
udpc = new UdpClient(Port);
AC = new AsyncCallback(ReceiveIt);
StartUdpReceive();
return ScriptableObject.CreateInstance < UDPRT > ();
}
public static UDPRT CreateInstance(int Port, string Host, string msg) // SEND UDP
{
udpc = new UdpClient(Host, Port);
AC = new AsyncCallback(SendIt);
byte[] data = Encoding.UTF8.GetBytes(msg);
udpc.BeginSend(data, data.Length, AC, obj);
return ScriptableObject.CreateInstance < UDPRT > ();
}
static void ReceiveIt(IAsyncResult result) {
DATA = (udpc.EndReceive(result, ref IP));
Debug.Log(Encoding.UTF8.GetString(DATA));
ReceivedMsg = Encoding.UTF8.GetString(DATA);
StartUdpReceive();
}
static void SendIt(IAsyncResult result) {
udpc.EndSend(result);
}
static void StartUdpReceive() {
udpc.BeginReceive(AC, obj);
}
}
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