var random_judge = false
var dfractal_judge = false
$(window).scroll(function() {
  var scTop = $(window).scrollTop()
  if (scTop <= start_point || scTop >= end_point) {
    if (!random_judge) {
      random_judge = true
      dfractal_judge = false
      transform_random()
    }
  } else if (scTop > start_point && scTop <= end_point) {
    if (!dfractal_judge) {
      random_judge = false
      dfractal_judge = true
      transform_dfractal()
    }
  }
})

function transform_random() {
  // wrapper.position.y = 0
  const SIZE = 500
  for (var i = 0; i < par_n; i++) {
    for (var j = 0; j < d_fractalArray[0].length; j++) {
      if (rndArray[i][j]) {
        pTween[j] = new TWEEN.Tween(geometry[i].vertices[j])
          .to({ x: rndArray[i][j].x, y: rndArray[i][j].y, z: rndArray[i][j].z }, 1000)
          .easing(TWEEN.Easing.Quintic.In)
          .start()
      }
    }
  }
}

function transform_dfractal() {
  wrapper.position.x = 120
  var hogen = 0
  for (var i = 0; i < par_n; i++) {
    for (var j = 0; j < d_fractalArray[0].length; j++) {
      if (d_fractalArray[i][j]) {
        pTween[j] = new TWEEN.Tween(geometry[i].vertices[j])
          .to({ x: d_fractalArray[i][j].x * 1.1 + 100, y: d_fractalArray[i][j].y * 1.1, z: d_fractalArray[i][j].z * 1.1 }, 2500)
          .easing(TWEEN.Easing.Quartic.Out)
          .start()
      } else {
        num = j - 794
        pTween[j] = new TWEEN.Tween(geometry[i].vertices[j])
          .to({ x: d_fractalArray[i][num].x * 1.1 + 100, y: d_fractalArray[i][num].y * 1.1, z: d_fractalArray[i][num].z * 1.1 }, 2500)
          .easing(TWEEN.Easing.Quartic.Out)
          .start()
      }
    };
  }
}