/*

 * developed by John Flitcroft and Serena Leonardi from movement code

 * origonally by andrewwright

 *

 */

import processing.video.*; //Library

import ddf.minim.*;

int W = 640; //Hight

int H = 480; //Width

Minim minim;

AudioOutput out;

AudioSample Bong;

AudioSample Bim;

color pColor;

Capture Rcam;

Capture Lcam;

PImage Panorama;

int res = 60; //Resolution (Higher=Bigger pixels)

int thresh = 50; //Threshold (Higher, less accurate/ bigger differances needed)

color[] buffer;

void setup()

{

  size ( W * 2, H );

  background(0);

  Rcam = new Capture(this, W, H);

  Rcam.settings();

  Lcam = new Capture(this, W, H);

  Lcam.settings();

  Panorama = new PImage(W * 2, H);

  buffer = new color[W * 2 * H];

  minim = new Minim(this);

  Bong = minim.loadSample("Bong.mp3", 2048);

  Bim = minim.loadSample("Bim.mp3", 2048);

}

void captureEvent(Capture Panorama)

{

  Panorama.read();

}

void draw()    //Draw Image from buffer, in order to compaire for movement.

{

  video();

  sampleAndPaint1();

  sampleAndPaint2();

  swapBuffer();

}

void video()

{

  if(Lcam.available());

  {

    Lcam.read();

    Lcam.loadPixels();

    Panorama.copy(Lcam, 0, 0, W, H, 0, 0, W, H);

  }

  if(Rcam.available());

  {

    Rcam.read();

    Rcam.loadPixels();

    Panorama.copy(Rcam, 0, 0, W, H, W, 0, W, H);

  }

}

void sampleAndPaint1() //Top Left

{

  fill(0, 10); //How long presence lingers

  rect(0, 0, W, H); //Create rectangle (location for motion detection)

  for ( int i = 0; i < W; i+= res )

  {

    for ( int j = 0; j < H; j+=res ) //j < Hight of y, 240= half way

    {

      int offset = i + j * W;

      color c = Panorama.pixels[offset];

      color r = buffer[offset];

      float cB = brightness(c);

      float rB = brightness(r);

      float delta = abs ( cB - rB );

      if ( delta > thresh )// if differance is greater than threshold fill with...

      {

        fill ( 0, 255, 0 ); // fill empty pixels with.. RGB

        noStroke();

        rect ( i, j, res, res ); //create new image, output

        Bong.trigger();

      }

    }

  }

}

void sampleAndPaint2() //Top Middle

{

  fill(0, 10); //How long presence lingers

  rect(W, 0, W, H); //Create rectangle (location for motion detection)

  for ( int i = W; i < W * 2; i+= res ) // i =x, x is < than 32... must be location

  {

    for ( int j = 0; j < H; j+=res )//j < Hight of y, 240= half way

    {

      int offset = i + j * W;

      color c = Panorama.pixels[offset];

      color r = buffer[offset];

      float cB = brightness(c);

      float rB = brightness(r);

      float delta = abs ( cB - rB );

      if ( delta > thresh )// if differance is greater than threshold fill with...

      {

        fill ( 255, 0, 0 ); // fill empty pixels with.. RGB

        noStroke();

        rect ( i, j, res, res ); //create new image, output

        Bim.trigger();

      } 

    }

  }

}

  void swapBuffer()

{

  arrayCopy(Panorama.pixels, buffer);    // Save frame, to compare for movement

}