Mac1 sends a signal to mac2 -> mac2 plays an audio file -> mac 2 waits for another signal sent by mac1 (loop)

In the code I have written I would love to send a signal to the second mac (mac2) at "int S5_MUSIC = 5;". So that there will be two sounds played at the same time. I need the second mac for a second pair of boxes, to create a surround sound....

This is my processing code:

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


int S1_WAITING_FOR_PEOPLE  = 1;
int S2_PEOPLE_ENTERED      = 2;
int S3_LIGHT_FADE_OUT      = 3;
int S4_DARK                = 4;
int S5_MUSIC               = 5;
int S6_LIGHT_FADE_IN       = 6;
// make sure this is the last!!!!
int TERMINATE              = 7;

int mode = S1_WAITING_FOR_PEOPLE;




int no_one_when_distance_greater_then = 160; // cm
int time_before_dim = 5000; // ms

SoundFile file;
boolean is_playing = false;

Serial myPort;  

int dist;

boolean someone_present = false;
int someone_present_since_time;


int music_playing_since;
int music_duration;

int in_mode_since_ms;

void setup() {
  size(640, 360);

  printArray(Serial.list()); // "/dev/cu.usbmodem1411" cu.usb!!!

  myPort = new Serial(this, Serial.list()[1], 9600);
  //myPort.readStringUntil('\n');
  myPort.bufferUntil('\n');

  // Load a soundfile from the data folder of the sketch and play it back in a loop
  file = new SoundFile(this, "Ex.wav");
  //file.loop();
  music_duration = (int) file.duration() * 1000;
  music_duration += 2000;

}      

void draw() {
  background(0);
  fill(255);
  text("frameCount: "+frameCount, 50, 25);
  text("dist: "+dist, 50, 50);
  text("mode: "+mode, 50, 75);


  if (frameCount == 180) {
    turn_on();
  } else if (frameCount > 180) {

    if ( mode == S1_WAITING_FOR_PEOPLE) {

      if (someone_present == false) {
        if (dist < no_one_when_distance_greater_then) {
          someone_present = true;
          someone_present_since_time = millis();
          change_mode(mode + 1);
        }
      }
    } else if (mode == S2_PEOPLE_ENTERED) {
      text("millis: "+millis(), 50, 100);
      text("someone_present_since_time: "+someone_present_since_time, 50, 125);
      text("time_before_dim: "+time_before_dim, 50, 150);
      if (millis() - someone_present_since_time > time_before_dim) {
        change_mode(mode + 1);
      }
    } else if (mode == S3_LIGHT_FADE_OUT) {
      turn_off();
      change_mode(mode + 1);
    } else if (mode == S4_DARK) 
    {
      change_mode(mode + 1);
    } else if (mode == S5_MUSIC) 
    {
      if (is_playing == false) {
        file.play();
        is_playing = true;
        music_playing_since = millis();
      }
      if (millis() - music_playing_since > music_duration) {
        is_playing = false;
        file.stop();
        change_mode(mode + 1);
      }
    } else if (mode == S6_LIGHT_FADE_IN) 
    {
      // todo
      if (millis() - in_mode_since_ms > 1000) {
        change_mode(mode + 1);
      }

    } else if (mode == TERMINATE) 
    {
      change_mode(S1_WAITING_FOR_PEOPLE);
      someone_present = false; // reset
      println("turn_on();");
      turn_on();
    }
  }
}


void change_mode(int m) {
  mode = m;
  in_mode_since_ms = millis();
}



void serialEvent(Serial p) { 
  String s = p.readString();
  if (s != null) {
    s = s.replace("\r\n", "");
    if (s.contains("Distance Measured")) {
      String[] tokens = split(s, "=");
      dist = int(tokens[1]);
    }
  }
} 


void turn_on() {
  myPort.write("on");
}

void turn_off() {
  myPort.write("off");
}

void keyPressed() {
  if (key == 'a') {
    turn_on();
  }
  if (key == 's') {
    turn_off();
  }
}

Thanks for your effort. Faffie

**NetworkedCat>

                   |data|>script-cat.php

                   index.html

                   NetworkedCat.pde

                   img.jpg

                   save2web.php

                   |swiftmailer|**

this Arduino-based app should:

1) receive an input from a pressure sensor; 2) verify whether threshold is surpassed 3) take picture from build-in camera 4) upload pic to website 5) mail me about the upload

testing on browser, save2web.php and cat-script.php are working, that is, scripts are uploading and emailing.

pressure sensor is also reading and printing, and threshold have been calibrated.

but NetworkedCat.pde is NOT triggering the events.

please note:

Processing opens localhost at another port (80), because php server works on 8080.

are they compatible?

why is the Processing code below not woking?

if I shorten the Processing code, and test the image capture and upload only, it works. so, the bug must be related to the serial events.

please help!

/*Serial String reader
Context: Arduino

Reads in a string of characters until it gets a linefeed (ASCII 10).
then converts the string into a number
*/

import processing.serial.*;
import processing.video.*;
import processing.net.*;

Serial myPort;              //the serial port
float sensorValue = 0;      //the value form the sensor
float prevSensorValue = 0;  //previous value from the sensor
int threshold = 200;        //above this number, the cat is on the mat

int currentTime = 0;       //the current time as a single number
int lastMailTime = 0;      //last minute you sent a mail
int mailInterval = 60;     //minimum seconds betweeen mails
String mailUrl = "cat-script.php";
int lastPicture = 0;       //last minute you sent a picture
int lastPictureTime = 0;   //last minute you sent a picture
int pictureInterval = 10;  //minimum seconds between pictures

Capture myCam;            //camera capture library instance
String fileName = "img.jpg"; //file name for the picture

//location on your server for the picture script:
String pictureScriptUrl = "save2web.php";
String boundary = "----H4rkNrF"; //string boundary for the post request

Client thisClient;        //instance for the net library


//float xPos = 0;             //horizontal position of the graph
//float lastXPos = 0;         //previous horizontal position  



void setup(){
  size(400, 300);
  //list all the available serial ports
  println(Serial.list());

  myPort = new Serial(this, Serial.list()[7], 9600);

  //reads bytes into a buffer until you get a newline (ASCII 10);
  myPort.bufferUntil('\n');

  //set initial background and smooth drawing:
  background(#543174);
  smooth();
  //for a list of cameras on your computer, use this line:
  println(Capture.list());

  //use the default camera for capture at 30 fps
  myCam = new Capture(this, width, height, 30);
  myCam.start();
}

void draw(){
  //make a single number fmor the current hour, minute, and second
  currentTime = hour() * 3600 + minute() * 60 + second();

  if (myCam.available() == true) {
    //draw the camera image to the screen;
    myCam.read();
    set(0, 0, myCam);

    //get the time as a string
    String timeStamp = nf(hour(), 2) + ":" + nf(minute(), 2)
    + ":" + nf(second(), 2) + "   " + nf(day(), 2) + "-"
    + nf(month(), 2) + "-" + nf(year(), 4);

    //draw a dropshadow for the time text:
    fill(15);
    text(timeStamp, 11, height - 19);
    //draw the main time next
    fill(255);
    text(timeStamp, 10, height - 20);
  }
}

void serialEvent (Serial myPort){
  //get the ASCII string
  String inString = myPort.readStringUntil('\n');

  if (inString != null){
    //trim off any whitespace:
    inString = trim(inString);
    //convert to an int and map to the screen height
    sensorValue = float(inString);
    //println(sensorValue);
    sensorValue = map(sensorValue, 0, 1023, 0, height);
    println(sensorValue);

    if (sensorValue > threshold){
      if(currentTime - lastPictureTime > pictureInterval){
        PImage thisFrame = get();
        thisFrame.save(fileName);
        postPicture();
        lastPictureTime = currentTime;
      }
      //if the last reading was less than the threshold
      //then the cat just got on the mat
      if(prevSensorValue <= threshold){
        println("Peti na casinha");
        sendMail();
      }
    }
    else{
      //if the sensor value is less than the threshold,
      //and the previous value was greater, then the cat
      //just left the mat
      if (prevSensorValue > threshold){
        println("Peti não está na casinha");
      }
    }
    //save the current value for the next time
    prevSensorValue = sensorValue;
  }
}


void sendMail(){
  //how long has passed since the last mail
  int timeDifference = currentTime - lastMailTime;

  if( timeDifference > mailInterval){
    String[] mailScript = loadStrings(mailUrl);
    println("results from mail script:");
    println(mailScript);

    //save the current minute for next time
    lastMailTime = currentTime;
  }
}

void postPicture(){
  //load the saved image into an array of bytes
  byte[] thisFile=loadBytes(fileName);

  //open a new connection to the server
  thisClient = new Client(this, "localhost", 80);
  //make an HTTP POST request:
  thisClient.write("POST" + pictureScriptUrl + " HTTP/1.1\n");
  thisClient.write("Host: localhost\n");
  //tell the server you're sending the POST in multiple parts
  //and send a unique string that will delineate the parts
  thisClient.write("Content-Type: multipart/form-data; boundary=");
  thisClient.write(boundary + "\n");

  //form the beginning of the request
  String requestHead ="\n--" + boundary + "\n";
  requestHead +="Content-Disposition: form-data; name=\"file\"; ";
  requestHead += "filename=\"" + fileName + "\"\n";
  requestHead +="Content-Type: image/jpeg\n\n";

  //form the end of the request
  String tail="\n\n--" + boundary + "--\n\n";

  //calculate and send the length of the total request
  //including the head of the request, the file, and the tail
  int contentLength = requestHead.length() + thisFile.length + tail.length();
  thisClient.write("Content-Length: " + contentLength + "\n\n");

  //send the header of the request, the file and the tail
  thisClient.write(requestHead);
  thisClient.write(thisFile);
  thisClient.write(tail);
}

I have question concerning setting the remote location in a processing android sketch.

I am using a processing android sketch running on a nexus 7 in a visual installation to control a processing sketch on a mac computer running yesemite via OSC. This works well as long as the specified remote location in the android sketch has the correct ip that the computer is using.

My problem is that this ip is changing every time the computer connects to the network, and the network (which is a university network) does not allow for connecting with a static ip. I could change the ip in the android sketch and upload it again to the tablet but as this is an installation that will be standing for a month this would be a lot of hassle. I am therefor wondering if there is a way to integrate a setting in the android sketch where you from the android tablet could choose the ip to send to without having to reinstall the sketch on the android tablet?

alternatively, how can you set up a local network for the mac and the nexus to communicate on? I have been unable to do that as the nexus does not recognise the macs local network.

3rd option would be to connect them via bluetooth but I do not know how to/ if you can send OSC messages via bluetooth.

wouold be very thankful for any help as the exhibition starts in 2 weeks and I dont know how to solve this. Thank you!