//by Heeya Mody

//faculty: Xin Xin and Aarati Akkapeddi

​

let capture;

let vScale = 1;

let tracker;

​

let sx; //source x

let sy; //source y

let sw = 20; //source w

let sh = 20; //source h

let dx; //destination x

let dy; //destination y

let dw = 20; //destination w

let dh = 20; //destination h

​

function setup() {

  createCanvas(640, 480);

  rectMode(CENTER);

  frameRate(1);

  pixelDensity(1);

  //create video capture

  capture = createCapture(VIDEO);

  //resize the video capture

  capture.size(width, height);

  //hide the video capture HTML element

  capture.hide();

  tracker = new clm.tracker(); //create clmtracker object

  tracker.init(); //initialize

  tracker.start(capture.elt);

}

​

function draw() {

  background(220);

  //flip video

  translate(width, 0);

  scale(-1, 1);

  capture.loadPixels();

  let positions = tracker.getCurrentPosition();

  // image(capture, 0, 0, width, height);

  if(positions){

    // ellipse(positions[27][0], positions[27][1], 5, 5);

    // ellipse(positions[32][0], positions[32][1], 5, 5);

    let d = int(dist(positions[32][0], positions[32][1], positions[27][0], positions[27][1]));

    // console.log(d);

    // rect((positions[32][0] - positions[27][0])/2 + positions[27][0], positions[27][1], d+100, d+200);

    sx = int((positions[32][0] - positions[27][0])/2 + positions[27][0] - (d+100)/2);

    sy = int(positions[27][1] - (d+200)/2);

    sw = d+100;

    sh = d+200;

    dx = width/2;

    dy = height/2;

    dw = 100;

    dh = 150;

    for (let i = sx; i < sx+sw; i++){

    for (let j = sy; j < sy+sh; j++){

      //magic formula: x + y * width * 4

      let index = (i + j * capture.width) * 4;

      let r = capture.pixels[index];

      let g = capture.pixels[index + 1];

      let b = capture.pixels[index + 2];

      let brightness = (r+g+b)/3; //average of all three values

      if(brightness < 255 && brightness >= 220){

        fill(232, 233, 201); //light

      } else if(brightness < 220 && brightness >= 190){

        fill(133, 187, 101); //medium

      } else {

        fill(34, 141, 87); //dark

      }

      rect(i/2*vScale, j/2*vScale, 1, 1);

      // tint(0, 155, 0, 200);

//       dx = dw * i;

//       dy = dh * j;

//       sx = sw * i;

//       sy = sh * j;

//       let offset = 120;

    }

  }

//     let copiedImg = 

    copy(capture, sx, sy, sw, sh, dx, dy, dw, dh);

    // console.log(copiedImg);

  }

  capture.updatePixels();

}