using UnityEngine;
using System.Collections;
using System.IO.Ports;

public class Serial {
    private static Serial instance;

    private Serial() { }

    ~Serial() {
        serialPort.Close();
    }

    public static Serial Instance
    {
        get
        {
            if (instance == null)
            {
                instance = new Serial();
            }
            return instance;
        }
    }

    public bool enabled = false;

    SerialPort serialPort;

    public void send(int start, int a, int b, int c)
    {
        if (serialPort == null)
        {
            serialPort = new SerialPort(@"\\.\" + "COM10", 115200);

            try
            {
                serialPort.Open();
                serialPort.DiscardOutBuffer();
                serialPort.DiscardInBuffer();

                enabled = true;
            }
            catch
            {
                enabled = false;
            }
        }

        if (enabled)
        {
            if (serialPort is SerialPort)
            {
                string send = " #" + start.ToString() + " P" + a.ToString();
                start++;
                send = send + " #" + start.ToString() + " P" + b.ToString();
                start++;
                send = send + " #" + start.ToString() + " P" + c.ToString();

                send = send + " \r";

                serialPort.Write(send);
            }
        }
    }

}