Out of Control y Axis- ROLLING GRAPH

Noobie here, I'm trying to take an input from an arduino over a usb and plot onto a graph. Everything is fine except I cant seem to map where the y begins and ends on my graph. I tried so many things but its stuck between 0 and about 400px. You'll see the box where the graph is suppose to occupy. I can't move/control the y axis. I drew out the issue in red on the attached image, please help!!

You'll see reference to multiple sensors, I am only trying to plot the sensor "moisture" for now.

/This sketch is frankensteined from the SerialCall Response example with arduino and
//this guy's sketch(code in description of video) - http://pastebin.com/kSrU3nVH

import processing.serial.*;

int moisture;  //the only sensor I'm currently trying to plot
float inByte;
int second; //sensors that ar![]()e not yet plotted but printed in the Console
int third;  // " "
int fourth; // " "

Serial myPort;                       // The serial port
int[] serialInArray = new int[4];    // Where we'll put what we receive
int serialCount = 0;                 // A count of how many bytes we receive
PFont  g_font;
boolean firstContact = false;        // Whether we've heard from the microcontroller

int[] yValues;
int w;

//SETUP
void setup() {
  size(1280, 720);  // Stage size

  g_font = loadFont("ArialMT-20.vlw");
  textFont(g_font, 20);

  w = 640; //width of our plot
  strokeWeight(1);
  smooth(); // or noSmooth();
  yValues = new int[w];

  println(Serial.list());
  String portName = Serial.list()[1];
  myPort = new Serial(this, portName, 9600);
}

void draw() {
  String inString = myPort.readStringUntil('\n');

  if (inString != null) {
    inString = trim(inString);
    inByte = float(inString);

    moisture = int(map(inByte, 0, 255, 360, 25));
    //setting the boundry for the graph line, inside box EXCEPT IT DOESNT WORK
  }

  //This should be down here, but works inside the if statement.
  //moisture = int(map(inByte, 0, 255, 360, 25));

  //Background and box for graph
  background(55);
  rect(25, 25, 615, 335);
  fill(255);
  //LEGEND
  strokeWeight(1.5);
  stroke(255, 0, 0);
  line(20, 420, 35, 420);
  stroke(0, 255, 0);
  line(20, 440, 35, 440);
  stroke(0, 0, 255);
  line(20, 460, 35, 460);
  stroke(255, 255, 0);
  line(20, 480, 35, 480);

  fill(0, 0, 0);
  text("Moisture", 40, 430);
  text("Analog A1", 40, 450);
  text("Analog A2", 40, 470);
  text("Analog A3", 40, 490);

  //ACTUAL PLOTTED LINE
  for (int i = 1; i < w; i++) {
    yValues[i-1] = yValues[i];
  }
  yValues[w-1] = moisture;
  //}

  stroke(120, 200, 0);
  line(w, moisture, 0, moisture);
  strokeWeight(3);


  //This controls the horizontal "TICKER LINE"
  for (int i=1; i<w; i++) {
    //stroke (rgb)
    stroke(220, 75, yValues[i]);
    //point folar x, float y
    point(i, yValues[i]);
    rect(0, 25, 50, 335);
    fill(255);
  }
}

void serialEvent(Serial myPort) {
  // read a byte from the serial port:
  int inByte = myPort.read();

  if (firstContact == false) {
    if (inByte == 'A') {
      myPort.clear();          // clear the serial port buffer
      firstContact = true;     // you've had first contact from the microcontroller
      myPort.write('A');       // ask for more
    }
  } else {
    // Add the latest byte from the serial port to array:
    serialInArray[serialCount] = inByte;
    serialCount++;

    // If we have 3 bytes:
    if (serialCount > 3) {
      moisture = serialInArray[0];
      second = serialInArray[1];
      third = serialInArray[2];
      fourth = serialInArray[3];

      // print the values (for debugging purposes only):
      println(moisture + "\t" + second + "\t" + third + "\t" + fourth);

      // Send a capital A to request new sensor readings:
      myPort.write('A');
      // Reset serialCount:
      serialCount = 0;
    }
  }
}

/*ARDUINO UNO CODE
 int firstSensor = 0;    // first analog sensor
 int secondSensor = 0;   // second analog sensor
 int thirdSensor = 0;    // digital sensor
 int fourthSensor = 0; //turning this into a fluxuating value
 int inByte = 0;         // incoming serial byte

 void setup()
 {
 // start serial port at 9600 bps:
 Serial.begin(9600);


 pinMode(2, INPUT);   // digital sensor is on digital pin 2
 establishContact();  // send a byte to establish contact until receiver responds
 }

 void loop()

 {

 // if we get a valid byte, read analog ins:
 if (Serial.available() > 0) {
 // get incoming byte:
 inByte = Serial.read();
 // read first analog input, divide by 4 to make the range 0-255:
 firstSensor = analogRead(A0);
 // delay 10ms to let the ADC recover:
 delay(10);
 // read second analog input, divide by 4 to make the range 0-255:
 secondSensor = analogRead(A1) / 4;
 // read  switch, map it to 0 or 255L
 thirdSensor = map(digitalRead(A2), 0, 1, 0, 255);
 // send sensor values:
 fourthSensor = analogRead(A3) / 4; //new sensor I added
 Serial.write(firstSensor);
 Serial.write(secondSensor);
 Serial.write(thirdSensor);
 Serial.write(fourthSensor);

 }
 }

 void establishContact() {
 while (Serial.available() <= 0) {
 Serial.print('A');   // send a capital A
 delay(300);

 }
 }
 */![Screen Shot 2016-08-18 at 11.45.51 PM](https://forum.processing.org/two/uploads/imageupload/608/2KIEZIROU05C.jpg "Screen Shot 2016-08-18 at 11.45.51 PM")