DragMove Set Direction.js

function touchMove(evt, currentX, currentY, translateX, translateY) {
  if (!dragDirection) {
    if (Math.abs(translateX) >= Math.abs(translateY)) {
      dragDirection = "horizontal";
    } else {
      dragDirection = "vertical";
    }

    requestAnimationFrame(updateUi); 
    // this is what actually does the animation (ﾉ◕ヮ◕)ﾉ*:・ﾟ✧
  }
  // ...
}