smart-bow-infrared/Assets/BowArrow/Scripts/SerialPortHelper.cs

using System.Collections.Generic;
using UnityEngine;

public class SerialPortHelper : MonoBehaviour
{
    public static SerialPortExample[] SerialPortExampleGroup;
    private static ArrowSerialPort arrowPort;

    private static SerialPortHelper _ins;

    public static SerialPortHelper ins
    {
        get
        {
            if (_ins == null)
            {
                var go = new GameObject("SerialPortHelper");
                _ins = go.AddComponent<SerialPortHelper>();
                DontDestroyOnLoad(go);
                SerialPortExampleGroup = FindObjectsOfType<SerialPortExample>();
                arrowPort = FindObjectOfType<ArrowSerialPort>();
            }
            return _ins;
        }
    }

    public static System.Action<byte[]> aim;
    public static System.Action<byte[]> shoot;

    void Start()
    {
        shoot = handleDataBytes;
        aim = OnDataReceived;
    }

    public void OnConnect(string deviceName)
    {
        
    }

    public void OnDisConnect(string deviceName)
    {

    }

    bool newPort = false;//true 用0 8串口   false 4替代0  6替代8
    /// <summary>
    /// 获取串口实例（0串口和8串口）
    /// </summary>
    public SerialPortExample GetPort(int port)
    {
        if (port == 0 || port == 8)
        {
            if (!newPort)
            {
                if (port == 0) port = 4;
                else if (port == 8) port = 6;
            }
            foreach (var item in SerialPortExampleGroup)
            {
                if (item.name.Contains($"com{port}"))
                    return item;
            }
        }
        return null;
    }

    /// <summary>
    /// 获取串口实例（1串口）
    /// </summary>
    public ArrowSerialPort GetPort()
    {
        return arrowPort;
    }

    #region 按键
    /// <summary>
    /// 
    /// </summary>
    /// <param name="bytes">0-起始码 1-序号 2-长度 3-按键类型 4-异或校验 5-结束码</param>
    public void OnDataReceived(byte[] bytes)
    {
        //按键类型
        //0x01  开机键- 短按
        //0x02  开机键- 长按（1.5秒）
        //0x03  开机键- 双击
        //0x04  标定键- 短按
        //0x05  标定键- 长按（1.5秒）
        //0x06  标定键- 双击

        switch (bytes[3])
        {
            case 0x04:
                AimHandler.ins.OnDataReceived(new byte[] { 0x66, 0x31 });
                break;
            case 0x05:
                AimHandler.ins.OnDataReceived(new byte[] { 0x66, 0x32 });
                break;
            case 0x06:

                break;
        }
    }
    #endregion

    #region 射击
    bool dataGetting = false;
    int dataGetLen = 0;
    List<byte> dataBytes = new List<byte>();

    int TwoByteToInt(byte b1, byte b2)
    {
        ushort twoByte = (ushort)(b1 * 256 + b2);
        short shortNum = (short)twoByte;
        return (int)shortNum;
    }

    void cacheDataBytes(byte[] bytes, int startIndex)
    {
        for (int i = startIndex; i < bytes.Length; i++)
        {
            byte b = bytes[i];
            if (dataBytes.Count < dataGetLen)
            {
                dataBytes.Add(b);
            }
            else
            {
                if (ShootCheck.ins) ShootCheck.ins.OnDataReceived(dataBytes.ToArray());
                dataGetting = false;
                dataBytes.Clear();
                break;
            }
        }
    }

    //0-起始码 1-序号 2-长度值 3-时间1 4--时间2 5--异或校验 6--结束码
    public void handleDataBytes(byte[] bytes)
    {
        if (dataGetting)
        {
            cacheDataBytes(bytes, 0);
        }
        else
        {
            if (bytes.Length >= 5)
            {
                int byte3Value = 0; //轴数据识别，1：x轴，2：y轴，3：z轴
                if (ShootCheck.ins)
                {
                    CMD cmd = ShootCheck.ins.cmd;
                    if (cmd.a == "x") byte3Value = 1;
                    if (cmd.a == "y") byte3Value = 2;
                    if (cmd.a == "z") byte3Value = 3;
                }
                if (bytes[0] == 255 || bytes[1] == 255 && bytes[2] == byte3Value)
                {
                    dataGetting = true;
                    dataGetLen = TwoByteToInt(bytes[3], bytes[4]);
                    cacheDataBytes(bytes, 5);
                }
            }
        }
        // 红外射击检测
        byte[] shootBytes = new byte[] { bytes[0], bytes[1], bytes[3], bytes[4], bytes[5] };
        ShootCheck.ins.ShootByInfrared(shootBytes);

    }
    #endregion
}