ProcessingProject1

import processing.serial.*;

String myString = null;
Serial myPort;
int PORT_INDEX = 0;

int NUM_OF_VALUES = 2;   /** YOU MUST CHANGE THIS ACCORDING TO YOUR PROJECT **/
int[] sensorValues;      /** this array stores values from Arduino **/


void setup() {
  size(500, 500);
  background(0);
  setupSerial();
}


void draw() {
  //background(0);
  updateSerial();
  printArray(sensorValues);
  float use = map(sensorValues[0], 0, 1023, 0, 500);
  float use2 = map(sensorValues[1], 0, 1023, 0, 500);
ellipse(use, use2, 100, 100);
  // use the values like this!
  // sensorValues[0] 

  // add your code

  //
}

void mousePressed()
{
  background(0);
}

void setupSerial() {
  printArray(Serial.list());
  myPort = new Serial(this, Serial.list()[ PORT_INDEX ], 9600);
  // WARNING!
  // You will definitely get an error here.
  // Change the PORT_INDEX to 0 and try running it again.
  // And then, check the list of the ports,
  // find the port "/dev/cu.usbmodem----" or "/dev/tty.usbmodem----" 
  // and replace PORT_INDEX above with the index number of the port.

  myPort.clear();
  // Throw out the first reading,
  // in case we started reading in the middle of a string from the sender.
  myString = myPort.readStringUntil( 10 );  // 10 = '\n'  Linefeed in ASCII
  myString = null;

  sensorValues = new int[NUM_OF_VALUES];
}



void updateSerial() {
  while (myPort.available() > 0) {
    myString = myPort.readStringUntil( 10 ); // 10 = '\n'  Linefeed in ASCII
    if (myString != null) {
      String[] serialInArray = split(trim(myString), ",");
      if (serialInArray.length == NUM_OF_VALUES) {
        for (int i=0; i<serialInArray.length; i++) {
          sensorValues[i] = int(serialInArray[i]);
        }
      }
    }
  }
}