// This file was originally created by Joel_E_B (https://www.sparkfun.com/tutorials/152) 
// and modified later by Adrià M Cassorla

import oscP5.*;        //  Load OSC P5 library
import netP5.*;        //  Load net P5 library
import processing.serial.*;    //  Load serial library

Serial arduinoPort;        //  Set arduinoPort as serial connection
OscP5 oscP5;            //  Set oscP5 as OSC connection

int [] led = new int [50];    //  Array allows us to add more toggle buttons in TouchOSC
int [] lastState = new int [50];

void setup() {
  size(100, 100);        // Processing screen size
  noStroke();            //  We don’t want an outline or Stroke on our graphics
  oscP5 = new OscP5(this, 8000);  // Start oscP5, listening for incoming messages at port 8000
  arduinoPort = new Serial(this, Serial.list()[1], 9600);    // Set arduino to 9600 baud
}

void oscEvent(OscMessage theOscMessage) {   //  This runs whenever there is a new OSC message

  String addr = theOscMessage.addrPattern();  //  Creates a string out of the OSC message
  if (addr.indexOf("/led") !=-1) {   // Filters out any toggle buttons
    int tens = int((addr.charAt(4) )) - 0x30;   // returns the ASCII number so convert into a real number by subtracting 0x30    
    int uni = int((addr.charAt(5) )) - 0x30;   // returns the ASCII number so convert into a real number by subtracting 0x30 
    int nLED = tens*10+uni; // Sums the tens and the units
    led[nLED]  = theOscMessage.get(0).intValue();    //  Puts the brightness value into led[i]
  }
}


// Loop
void draw() {

  // Pass through each LED
  for (int n=0; n<50; n++) {
    // if it is different, sends the value to the Arduino via Serial
    if (led[n] != lastState[n]) {
      lastState[n] = led[n]; // Stores the last value
      arduinoPort.write(str(n)); // Writes the LED number
      arduinoPort.write(',');  // Separated by a comma
      arduinoPort.write(str(led[n])); //Writes the brightness
      arduinoPort.write('\n'); // End of the message
    }
  }
}