using System;
using System.Collections;
using System.Collections.Generic;
using System.IO.Ports;
using System.Threading;
using UnityEngine;
using LitJson;

public class MyMagneticSerialPort : MonoBehaviour
{
    private SerialPort serialPort;
    private Thread readPortData;
    //public List<byte> listReceive = new List<byte>();
    public string jsonData = "";
    //根据磁场数据反射磁场针转向
    public Transform MagneticNeedle;


    // Use this for initialization
    void Start()
    {
        //Application.targetFrameRate = 120;
        try
        {
            serialPort = new SerialPort("COM4", 115200);
            serialPort.ReadTimeout = 500;
            if (!serialPort.IsOpen)
            {
                serialPort.Open();
            }
            readPortData = new Thread(new ThreadStart(readData));
            readPortData.IsBackground = true;
            readPortData.Start();
        }
        catch (Exception)
        {
            throw;
        }
    }

    // Update is called once per frame
    void Update()
    {
        if (jsonData != "")
        {
            MPUMagneticData mpudata_ = JsonMapper.ToObject<MPUMagneticData>(jsonData);
            MagneticNeedle.localEulerAngles = new Vector3(((float)mpudata_.MagneticX-5)*4, ((float)mpudata_.MagneticY-67)*4, ((float)mpudata_.MagneticZ - 5) * 4);
            //Debug.LogWarning("Temperature = " + mpudata_.Temperature);
            //print("x=" + mpudata_.GyroX + "||y=" + mpudata_.GyroY + "||z=" + mpudata_.GyroZ + "____Ax=" + mpudata_.AccelX + "||Ay=" + mpudata_.AccelY + "||Az=" + mpudata_.AccelZ + "-----" + Time.deltaTime);
            //MpuBoardTrans.transform.localPosition += new Vector3(speedX/1000, 0, 0);
            //print("speed="+speedY);
        }
    }





    //结束后关闭串口
    private void OnDestroy()
    {
        if (serialPort.IsOpen)
            serialPort.Close();
        readPortData.Abort();
    }

    //弧度转角度
    private float TransRadToAngle(double rad)
    {
        //return -(float)rad * 180 / Mathf.PI;
        return (float)rad * 90;
    }
    /// <summary>
    /// 读取数据
    /// </summary>
    private void readData()
    {
        try
        {
            while (serialPort != null && serialPort.IsOpen)
            {
                byte addr = Convert.ToByte(serialPort.ReadByte());
                serialPort.DiscardInBuffer();
                //listReceive.Add(addr);
                //print("{"+serialPort.ReadLine());
                jsonData = "{" + serialPort.ReadLine();
            }
        }
        catch (Exception)
        {
            throw;
        }
    }


    private void caculateSpeed(float accelSpeed)
    {

    }
}