/** 
 * Serial Call-Response 
 * by Tom Igoe. 
 * 
 * Sends a byte out the serial port, and reads 3 bytes in. 
 * Sets foregound color, xpos, and ypos of a circle onstage
 * using the values returned from the serial port. 
 * Thanks to Daniel Shiffman  and Greg Shakar for the improvements.
 * 
 * Note: This sketch assumes that the device on the other end of the serial
 * port is going to send a single byte of value 65 (ASCII A) on startup.
 * The sketch waits for that byte, then sends an ASCII A whenever
 * it wants more data. 
 */


import processing.serial.*;
import ddf.minim.*;

Minim minim;
AudioSample kick;
AudioSample snare;

AudioSample one;
AudioSample two;

int bgcolor;			     // Background color
int fgcolor;			     // Fill color
Serial myPort;                       // The serial port
int[] serialInArray = new int[3];    // Where we'll put what we receive
int serialCount = 0;                 // A count of how many bytes we receive
int xpos, ypos;		             // Starting position of the ball
boolean firstContact = false;        // Whether we've heard from the microcontroller

AudioSample[] samples = new AudioSample[6];

int sampleCounter = 0;
int stepCounter = 0;

void setup() {
  size(256, 256);  // Stage size
  noStroke();      // No border on the next thing drawn
  minim = new Minim(this);
  // load BD.wav from the data folder
  //kick = minim.loadSample( "BD.mp3", // filename

  samples[0] = minim.loadSample("1eng2.aiff", 512);
  samples[1] = minim.loadSample("2eng2.aiff", 512);
  samples[2] = minim.loadSample("1eng2.aiff", 512);
  samples[3] = minim.loadSample("2eng2.aiff", 512);
  samples[4] = minim.loadSample("1eng2.aiff", 512);
  samples[5] = minim.loadSample("2eng2.aiff", 512);


  one = samples[sampleCounter];
  two = samples[sampleCounter + 1];  

  // Print a list of the serial ports, for debugging purposes:
  printArray(Serial.list());

  // I know that the first port in the serial list on my mac
  // is always my  FTDI adaptor, so I open Serial.list()[0].
  // On Windows machines, this generally opens COM1.
  // Open whatever port is the one you're using.
  String portName = Serial.list()[5];
  myPort = new Serial(this, portName, 9600);
}

void draw() {
}

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

  //if ( inByte == 0 ) one.trigger();
  if ( inByte % 2 == 0 ) {
    one.trigger();
  }
  else {
    two.trigger();
  }
  //if ( inByte == 1 ) two.trigger();
  
  
  stepCounter = stepCounter + 1;
  
  if(stepCounter > 100) {
    changeLanguage();
    stepCounter = 0;
  }
}

void changeLanguage() {
  sampleCounter = sampleCounter + 2;

  if (sampleCounter >= samples.length) {
    sampleCounter = 0;
  }

  one = samples[sampleCounter];
  two = samples[sampleCounter + 1];
}