Processing Code Sea Level Stories

import processing.serial.*;
import processing.sound.*;

SoundFile[] soundFiles = new SoundFile[5];
Serial myPort;  // Create object from Serial class

int[] ldrValues;
int[] thresholds = {650, 590, 500, 650, 400};
boolean[] states = {false, false, false, false, false};

void setup() {
  size(200, 200);
  // I know that the first port in the serial list on my mac
  // is always my  FTDI adaptor, so I open Serial.list()[0].
  // On Windows machines, this generally opens COM1.
  // Open whatever port is the one you're using.

  println(Serial.list());

  String portName = Serial.list()[3];
  myPort = new Serial(this, portName, 9600);


  soundFiles[0] = new SoundFile(this, "Canoe_Oar.mp3");
  soundFiles[1] = new SoundFile(this, "Dry_Shampoo.mp3");
  soundFiles[2] = new SoundFile(this, "Floaties.mp3");
  soundFiles[3] = new SoundFile(this, "Galoshes.mp3");
  soundFiles[4] = new SoundFile(this, "Respirator.mp3");
  
}

void draw()
{
  background(255);             // Set background to white

  //serial loop
  while (myPort.available() > 0) {
    String myString = myPort.readStringUntil(10);
    if (myString != null) {
      //println(myString);
      ldrValues = int(split(myString.trim(), ','));
      //println(ldrValues);
    }
  }

  for (int i = 0; i < ldrValues.length; i++) {
    println(states[i]);
    println(ldrValues[i]);
    if (ldrValues[i] > thresholds[i] && !states[i]) {
      println("sensor " + i + " is activated");
      soundFiles[i].play();
      states[i] = true;
    }
    if (ldrValues[i] < thresholds[i]) {
      println("sensor " + i + " is NOT activated");
      soundFiles[i].stop();
      states[i] = false;
    }
  }
}