gistfile1.cs

using System;
using System.IO;
using System.IO.Ports;
using System.Threading;
using UnityEngine;

public class Light_controll : MonoBehaviour
{
    private const string SERIAL_PORT = "COM6";
    private const int SERIAL_BAUD_RATE = 115200;
    private const int SERIAL_TIMEOUT = 100;
    private Thread _readThread;
    private static SerialPort _serialPort;
    private static bool _continue;

    private static Quaternion _handQuaternion = new Quaternion();
    private static bool swicth;
    private static Light light;

    void Start()
    {
        //DontDestroyOnLoad(this.gameObject);
        _readThread = new Thread(Read);
        _serialPort = new SerialPort(SERIAL_PORT, SERIAL_BAUD_RATE);
        _serialPort.ReadTimeout = SERIAL_TIMEOUT;
        try
        {
            _serialPort.Open();
        }
        catch (IOException)
        {
            this.gameObject.transform.eulerAngles = new Vector3(0, 90, 0);
            this.gameObject.transform.parent = GameObject.Find("OVRCameraController").transform;
            Destroy(this);

        }
        
        _continue = true;
        swicth = true;
        light = this.gameObject.GetComponent<Light>();
        _readThread.Start();
    }

    void Update()
    {
        transform.rotation = _handQuaternion;
        light.enabled = swicth;
    }

    void OnApplicationQuit()
    {
        _continue = false;
        _readThread.Join();
        _serialPort.Close();
    }

    private static void Read()
    {
        string[] values;
        float x, y, z, w;
        String str;
        while (_continue)
        {
            if (_serialPort.IsOpen)
            {
                try
                {
                    values = _serialPort.ReadLine().Split('\t');
                    if (values[0] == "quat")
                    {
                        x = -float.Parse(values[2]);
                        y = -float.Parse(values[4]);
                        z = -float.Parse(values[3]);
                        str = values[5];
                        w = float.Parse(values[1]);
                        _handQuaternion.Set(x, y, z, w);
                        if(str == "OK"){
                            swicth = true;
                        }
                        else
                        {
                            swicth = false;
                        }
                    }
                }
                catch (TimeoutException)
                {
                }
            }
            Thread.Sleep(1);
        }
    }
}