/*
Based on snippets from 'Circle Follow' by Monica Monin 
*/

//Import JMyron library

import JMyron.*;

JMyron m; //camera object

//switches
boolean showCamera = true; //Will use this boolean variable to turn the visual of the camera on and off
boolean showBlobs = true;

//threshhold for lighting
int threshold = 255;


void setup(){
  
 size (320,240);
 m = new Jmyron(); //new instance of camera object
 m.start(width,height); //Capture field of view
 
 m.trackColor (255,255,255,threshold);

 m.mindensity(100); //min pixels permitted to form a box
 m.maxdensity(10000); // max "
 
 println ("Myron " + m.version());
 noFill();
}


void draw(){
 
 m.update(); //update (keep updating camera view)
 
 //camera on/off
 if (showCamera) {
    drawCamera();//draw the camera to the screen
  } else { //showCamera must be false
    background(0); //draw the background
  }
 
 
 //glob centers - based on revised Jmyron library by _________
 
 //two arrays
 
 int[][] a; //store the centers of the globs
 int[][] b = m.globBoxes();  //will return an array with X,Y position + width+height - rectangles
 
 //store initial area of biggest blob
 float biggestBlob = 0;
 int d = 0;//this will store the index of our biggest blob in the globBoxes array
 
 
//Position 2 and 3 hold the width and height of the glob at index i, times them together to get the area of the blob
 float blobSize = b[i][2]*b[i][3];

   //If the current blob is bigger, then make it the biggest blob
    if (blobSize > biggestBlob) {
      biggestBlob = blobSize;
      d = i; //store its position in the array
    }

       //Draw the biggest blob, it will come up red
    if (showBlobs) {
      stroke(255,0,0);
      noFill();
      rect( b[d][0] , b[d][1] , b[d][2] , b[d][3] );
    }


  //fetch the centers of the globs
  a = m.globCenters();
  
  //draw the globs
  stroke(255,128,128);
  fill(128,0,128,128);
  
  //for every blob center  
  print("i see                    " + a.length + " blobs\n");

  //itterate through all blobs in array to find biggest one 
// start at i=1
  for(int i=1;i<a.length;i++){
    
    
    //output to the console which blob this is
    print("blob " + i + " : ");
    
  }
    
    //if the blob is not exactly at 0 x 0
    //(jmyron may have this quirk, but it only rarely occurs)
    if(a[i][1] != 0 && a[i][0] != 0){

      //output the x and y coords of the blob to the console
      print(a[i][0] + " X " + a[i][1] + "\n");
    
      //draw the exact point of the blob center
      point(a[i][0],a[i][1]);
    
      //draw an ellipse around the point to make it easyer to see
      //you might also use it as bounds for tracking objects.
      
      ellipse(a[i][0],a[i][1],20,20);   
      
    } else {
      //(if the blob center was at 0x0)
      //output to the console that this blob was skipped
      print ("skipped. (0x0) \n");
    }

}