//================================================
// Ex26
//   Video capture and  visualization
// ===============================================

import processing.video.*;
Capture camera;
int screenWidth= 1280, screenHeight = 720;
color  trackingColor             = color(255,0,0);
int    matchingTolerance         =10;
int    trackColor              = 1;
PImage img;
// ===============================================
// ===============================================
void setup()
{
  size(screenWidth, screenHeight);   // Set  window Size

  println(Capture.list()); // Get available devices and resolutions

  camera = new Capture(this, screenWidth, screenHeight);

  camera.start();
  img = loadImage("mostacho.png");

}


// ===============================================
// ===============================================

void draw()
{


 image(camera,0,0);
 trackSelectedColor();


}
void mousePressed(){
  int loc=(mouseY*screenWidth + mouseX);
  trackingColor = camera.pixels[loc];


}
// ===============================================
// ===============================================

void captureEvent(Capture camera)
{
  camera.read();
}
// ===============================================
// ===============================================
void trackSelectedColor()
{

  camera.loadPixels();


  float bestMatch = 100000;
  int closestX = 0;
  int closestY = 0;

  for (int x = 0; x < camera.width; x ++ )
  {
    for (int y = 0; y < camera.height; y ++ )
    {
      int linearPosition = x + y*camera.width;
      color currentColor = camera.pixels[linearPosition];
      float r1 = red(currentColor);
      float g1 = green(currentColor);
      float b1 = blue(currentColor);
      float r2 = red(trackingColor);
      float g2 = green(trackingColor);
      float b2 = blue(trackingColor);
      float d = dist(r1,g1,b1,r2,g2,b2);

      // If current color is more similar to tracked color than
      // closest color, save current location and current difference
      if (d < bestMatch )
      {
        bestMatch = d;
        closestX = x;
        closestY = y;
      }
    }
  }

  if ((bestMatch < matchingTolerance)  && (trackColor ==1 ))
  {
    println("Similar Point found!!!");
    // Draw a circle at the tracked pixel
    fill(trackingColor);
    stroke(0);
    image(img, closestX-(img.width/2), closestY-(img.height/2));
   // String s="CoordenadaX= "+ closestX+ "CloordenadaY= "+ closestY;
    //text(s,closestX,closestY);
  }
}