SetTouches.js

function onTouchStart(evt) {
  startTime = new Date().getTime();
  startX = evt.touches[0].pageX;
  startY = evt.touches[0].pageY;

  touchingElement = true;

  touchStart(startX, startY);
}

function onTouchMove(evt) {
  if (!touchingElement)
    return;

  currentX = evt.touches[0].pageX;
  currentY = evt.touches[0].pageY;
  const translateX = currentX - startX; // distance moved in the x axis
  const translateY = currentY - startY; // distance moved in the y axis

  touchMove(evt, currentX, currentY, translateX, translateY);
}

function onTouchEnd(evt) {

  if (!touchingElement)
    return;

  touchingElement = false;
  const translateX = currentX - startX; // distance moved in the x axis
  const translateY = currentY - startY; // distance moved in the y axis

  const timeTaken = (new Date().getTime() - startTime);
}