martin_cork_processing

import java.util.*;

// library for audio
import ddf.minim.*;
import processing.serial.*;

//audio
Minim minim;
AudioPlayer player;

Serial myPort;

int[] serialInArray = new int[3];
int serialCount = 0;
int rfid, rotary, cardPresent;
boolean firstContact = false;

int[] churnArray = {0,0,0,0};
float value;
int churnInt;

//the lenght of time between ms and begin time is
//the amount of time between the track being turned down
//and it being ejected
//2nd June: ms = 3000
int begintime = 10;
int window = 0;
int start;

PFont font;
//figure out which track to play
boolean playerPlaying = false;
boolean playStory = false;
boolean ejected = false;

void setup()
{
  size(640,480);
  noStroke();
  fill(0);

  loop();
  frameRate(1);
  background(0);

  hint(ENABLE_NATIVE_FONTS);
  font = createFont("Arial", 18);

  minim = new Minim(this);

  println(Serial.list());
  String portName = Serial.list()[0];
  myPort = new Serial(this, portName, 9600);

  player = minim.loadFile("sean_1.mp3");
  println("player gain is " + player.getGain());

}

void draw()
{

  if(window == 0){
  background(#FF0000);
  }

  //Get the rotary encoder
  churnArray = splice(churnArray, rotary, 0);
  churnArray = shorten(churnArray);
  //println(churnArray);
  //println("draw fnt, player.getGain() "+player.getGain());

  //if there is no change begin the stop music playing function
  if(churnArray[0] == churnArray[3]){
    //println("someone has stopped churning");
    //minim.stop();
    //playerPlaying = false;
    //churningStopped();
  }
  //CHECK IF SOMEONE IS CHURNING
  //if there is a change begin to play the music
  //if(churnArray[0] != churnArray[1]){
  //change to if a card is present and there is a difference in churning
  if((churnArray[0] != churnArray[1]) && (cardPresent == 1)){

    churningStarted();
    player.play();
    player.setGain(10.0);
    /*
    //this turns the volume (gain) up gradually - didn't work that well
    if(player.getGain() < 2.0){
      //println("playerGain on churn " + player.getGain());
      player.shiftGain(-10.0, 6.0, 2000);
    }
    */
    playerPlaying = true;
    window = 1;
    start = millis();
    //myPort.write('3');
  }

  if (window == 1) {
    background(#FFFFFF);

    int ms = millis()-start;
    println("ms = " + ms);
    //myPort.write('3');
    //println("writing 3 to port");
    int sec = ms/1000;

    int timer = begintime - sec;

    //get the current position of the player to see wheter or not to
    float currentPos = player.position();
    float num = currentPos / 1000;
    float posRound = round(num);
    println("seconds since start " + posRound);

    if(posRound == 10){
      println("its 10 seconds in");
      println("print");
      myPort.write('5');
    }
    if(posRound == 20){
      println("its 20 seconds in");
      println("print again");
      myPort.write('6');
    }
    if(posRound == 30){
      println("tell them the butter has been made");
      myPort.write('7');
    }
    if(posRound == 44){
      //player.rewind();
      player.mute();
      posRound = 0;
      //player = minim.loadFile("sean_1.mp3");
      //the person has churned their way to the end of the track
      println("eject and print");
      //stopPlaying();
      //minim.stop();
      myPort.write('0');
      ejected = true;
      //myPort.stop();
      //setup();
    }

    if(ms > 6000){
      println("start to turn down");
      println("turn down. player.getGain() is now : " +player.getGain());
      if(player.getGain() > 6.0){
        player.shiftGain(6.0, -10.0, 1000);
      }
      //myPort.write('2');
    }


    if ( (timer <= 0) || (posRound == 45) ) {
      println("Stop the track and eject the token.");
      //println("player gain " + player.getGain());
      //programming for if someone churns full lenght of track
      //if(currentPos < 25000){
        stopPlaying();
        myPort.write('1');
        window = 2;
      //}
    }
  }

  if((playerPlaying == true) && (churnArray[0] == churnArray[2])){
      println("someone has stopped churning as the track is playing");
      myPort.write('4');
    }

  if (window == 2) {
    //println("change bg");
    background(0);
  }
}



void keyPressed(){
  if (key == 'p') {
    churningStarted();

    player.play();

    //get the controls available to the player
    //println(player.getControls());
    //and shift the volume up
    //only turn it up if the sound has been off
    if(player.getGain() < 6.0){
      player.shiftGain(-10.0, 6.0, 5000);
    }
    //player.setGain(1.0);
    //float volumeLevel;
    //volumeLevel = player.getVolume();
    //println("volumeLevel is " + volumeLevel);
    playerPlaying = true;
    println("playing from keypress");

    window = 1;
    start = millis();
  }

  if (key == 's') player.pause();

  if (key == 'e'){
    //minim.stop();
    //playerPlaying = false;
    player.shiftGain(6.0, -10.0, 5000);
    //churningStopped();
    println("e");
    //window = 1;
    //start = millis();
  }
  if (key == 'g'){
    println("g");
    window = 1;
    start = millis();
  }
}

void churningStarted(){
  if(cardPresent == 0){
    minim.stop();
  }
  if(rfid == 0){
    //println("rfid == 0, stop minim, set player to false");
    minim.stop();
    playerPlaying = false;
    //no card has been inserted, so if someone churns play some cows mooing
    //player = minim.loadFile("cow2.mp3");
  }
  if(rfid == 1){
     //println("rfid card 1");
     if(playerPlaying == false){
        player = minim.loadFile("sean_nar_1.mp3");
        playerPlaying = true;
     }
   }

  if(rfid == 2){
    //println("rfid == 2");
    if(playerPlaying == false){
      player = minim.loadFile("sean_nar_2.mp3");
      playerPlaying = true;
    }
  }

  if(rfid == 3){
    //println("rfid == 3");
    if(playerPlaying == false){
      //player = minim.loadFile("sean_nar_3.mp3");
      playerPlaying = true;
    }
  }

  if(rfid == 4){
    //println("rfid == 4");
    if(playerPlaying == false){
      player = minim.loadFile("sean_nar_4.mp3");
      playerPlaying = true;
    }
  }

  if(rfid == 5){
    //println("rfid == 5");
    if(playerPlaying == false){
      player = minim.loadFile("sean_nar_5.mp3");
      playerPlaying = true;
    }
  }

  if(rfid == 6){
    //println("rfid == 6");
    if(playerPlaying == false){
      player = minim.loadFile("sean_nar_6.mp3");
      playerPlaying = true;
    }
  }

  if(rfid == 7){
    //println("rfid == 7");
    if(playerPlaying == false){
      player = minim.loadFile("story_7.mp3");
      playerPlaying = true;
    }
  }
}

//inside in this loop, we'll first begin to turn the sound down
//over the course of 5 seconds. If noone has churned since then
//then stop the track altogether
void churningStopped(){

  println("turn sound down and get ready to stop");
  player.shiftGain(6.0, -10.0, 5000);
  //stopPlaying();
}


void stopPlaying(){
  //now stop the track from playing
  println("stop minim object");
  minim.stop();
  playerPlaying = false;
  //myPort.write('0');
  //myPort.write('2');
}

void serialEvent(Serial myPort) {
  // read a byte from the serial port:
  int inByte = myPort.read();
  // if this is the first byte received, and it's an A,
  // clear the serial buffer and note that you've
  // had first contact from the microcontroller.
  // Otherwise, add the incoming byte to the array:
  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 > 2 ) {
      //println("rfid track is " + rfid);
      rfid = serialInArray[0];
      rotary = serialInArray[1];
      cardPresent = serialInArray[2];
      //println(serialInArray);
      // print the values (for debugging purposes only):
      //println(rfid + "\t" + rotary + "\t");

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