function singleAnimation( verticesArray, animateBuffArrays, stepTotal) {
  let len = verticesArray.length
  let pollIndex = 0;

  return function () {
    for (let i = 0, index = 0; i < len; i += 3, index++) {
      let Indexes = index * stepTotal + pollIndex
      verticesArray[i + 2] = animateBuffArrays[Indexes]
    }

    pollIndex++
    
    if (pollIndex < stepTotal) {
      // mesh.geometry.attributes.position.needsUpdate = true;
      return false
    } else {
      return true
    }
  }
}


self.addEventListener('message', event => {
  let data = event.data
  let id = data.id
  let fns = singleAnimation(
    data.verticesArray,
    data.animateBuffArrays,
    data.stepTotal
  )
  let interval = setInterval(() => {
    if (fns()) {
      clearInterval(interval)
      self.postMessage(id)
    }
  }, 16)
})