using UnityEngine;
/*
 * To use 'System.IO.Ports;', you should change in Player settings
 * Build Settings - Player Settings - 'Player' tab
 * Configuration - Api Compatibility Level* ---> change to ‘NET 4.x’
*/
using System.IO.Ports;

public class ArduinoSerial : MonoBehaviour
{

    public string port;  //ex) MAC Arduino Port "/dev/cu.usbmodem146101"
    public int baudrate = 9600;  // ex) Arduino : Serial.begin(9600);

    private SerialPort sp;
    public string incomingData;

    public Material objMaterial;
    private Color cubeColor;
    private float sensorValue;

    void Start()
    {
        sp = new SerialPort(port, baudrate);
        sp.ReadTimeout = 50;
        sp.Open();
    }

    void Update()
    {
        try
        {
            incomingData = sp.ReadLine();
            sensorValue = float.Parse(incomingData);
            Debug.Log(sensorValue);
        }
        catch (System.Exception)
        {

        }

        Color sensorColor = objMaterial.color;
        float mPotVal = scale(0.0f, 1024.0f, 0.0f, 1.0f, sensorValue);
        sensorColor.a = mPotVal;
        objMaterial.color = sensorColor;

        /*
        //Write to Arduino
        if (Input.GetKeyDown("1"))
        {
            sp.Write("1");
            sp.BaseStream.Flush();
        }
        else if (Input.GetKeyDown("0"))
        {
            sp.Write("0");
            sp.BaseStream.Flush();
        }
        */
    }

    //Map the sensor value
    public float scale(float OldMin, float OldMax, float NewMin, float NewMax, float OldValue)
    {
        float OldRange = (OldMax - OldMin);
        float NewRange = (NewMax - NewMin);
        float NewValue = (((OldValue - OldMin) * NewRange) / OldRange) + NewMin;

        return (NewValue);
    }

}