let poseNet;

let poses = [];

let skeletons = [];

let a = 0;

let fade = 1;

​

​

​

function setup() {

  createCanvas(640, 480);

  video = createCapture(VIDEO);

  video.size(width, height);

​

  // Create a new poseNet method with a single detection

  poseNet = ml5.poseNet(video, modelReady);

  // This sets up an event that fills the global variable "poses"

  // with an array every time new poses are detected

  poseNet.on('pose', function(results) {

    poses = results;

  });

  // Hide the video element, and just show the canvas

  video.hide();

}

​

function modelReady() {

 // select('#status').html('Model Loaded');

  console.log("model loaded");

}

​

function draw() {

  push();

  translate(width,0);

  scale(-1,1)

  image(video, 0, 0, width, height);

  pop();

  // We can call both functions to draw all keypoints and the skeletons

  drawKeypoints();

  drawSkeleton();

}

​

// A function to draw ellipses over the detected keypoints

function drawKeypoints() {

​

  // Loop through all the poses detected

  for (let i = 0; i < poses.length; i++) {

    // For each pose detected, loop through all the keypoints

​

    for (let j = 0; j < poses[i].pose.keypoints.length; j++) {

      // A keypoint is an object describing a body part (like rightArm or leftShoulder)

      let keypoint = poses[i].pose.keypoints[j];

      // Only draw an ellipse is the pose probability is bigger than 0.2

​

      if (keypoint.score > 0.6) {

        stroke(0);

        fill(0);

        text(j, keypoint.position.x, keypoint.position.y - 15);

        ellipse(keypoint.position.x, keypoint.position.y, 10, 10);

      }

    }

    noFill();

     noStroke();

    beginShape();

    // 3,1,2,4,0 => .5* dist(6&5) 6 ,5

    // console.log(poses[i].pose.keypoints[0]);

    if (poses[i].pose.keypoints[0].position.x) {

      if (poses[i].pose.keypoints[0].score > 0.6) {

        vertex(poses[i].pose.keypoints[0].position.x, poses[i].pose.keypoints[0].position.y)

      }

    }

    if (poses[i].pose.keypoints[3].position.x) {

      vertex(poses[i].pose.keypoints[3].position.x, poses[i].pose.keypoints[3].position.y)

    }

    if (poses[i].pose.keypoints[1].position.x) {

      vertex(poses[i].pose.keypoints[1].position.x, poses[i].pose.keypoints[1].position.y)

    }

    if (poses[i].pose.keypoints[2].position.x) {

      vertex(poses[i].pose.keypoints[2].position.x, poses[i].pose.keypoints[2].position.y)

    }

    if (poses[i].pose.keypoints[4].position.x) {

      vertex(poses[i].pose.keypoints[4].position.x, poses[i].pose.keypoints[4].position.y)

    }

    vertex(poses[i].pose.keypoints[0].position.x, poses[i].pose.keypoints[0].position.y)

​

​

​

    if (poses[i].pose.keypoints[6].position.x && poses[i].pose.keypoints[5].position.x) {

      let dis = dist(poses[i].pose.keypoints[6].position.x, poses[i].pose.keypoints[6].position.y, poses[i].pose.keypoints[5].position.x, poses[i].pose.keypoints[5].position.y)

      vertex(poses[i].pose.keypoints[6].position.x + (dis / 2), poses[i].pose.keypoints[6].position.y);

      vertex(poses[i].pose.keypoints[6].position.x, poses[i].pose.keypoints[6].position.y);

      vertex(poses[i].pose.keypoints[5].position.x, poses[i].pose.keypoints[5].position.y);

      vertex(poses[i].pose.keypoints[5].position.x - (dis / 2), poses[i].pose.keypoints[5].position.y)

    }

    if (poses[i].pose.keypoints[11].position.x) {

      vertex(poses[i].pose.keypoints[11].position.x, poses[i].pose.keypoints[11].position.y)

    }

    if (poses[i].pose.keypoints[12].position.x) {

      vertex(poses[i].pose.keypoints[12].position.x, poses[i].pose.keypoints[12].position.y)

    }

​

    endShape();

  }

​

}

​

// A function to draw the skeletons

function drawSkeleton() {

  // Loop through all the skeletons detected

  for (let i = 0; i < poses.length; i++) {

    // For every skeleton, loop through all body connections

    for (let j = 0; j < poses[i].skeleton.length; j++) {

      let partA = poses[i].skeleton[j][0];

      let partB = poses[i].skeleton[j][1];

      stroke(255, 0, 0);

      line(partA.position.x, partA.position.y, partB.position.x, partB.position.y);

    }

  }

​

}