import { BufferAttribute, InterleavedBufferAttribute } from 'three'

export default class ClonableInterleavedBufferAttribute extends InterleavedBufferAttribute {
  getX: any
  getY: any
  getZ: any
  getW: any
  clone() {
    console.warn('Cloning an InterleavedBufferAttribute is unsupported. Converting to a BufferAttribute instead.')
    const count = this.count
    const itemSize = this.itemSize
    const array = (this.array as any).slice(0, count * itemSize)
    for (let i = 0, j = 0; i < count; ++i) {
      array[j++] = this.getX(i)
      if (itemSize >= 2) array[j++] = this.getY(i)
      if (itemSize >= 3) array[j++] = this.getZ(i)
      if (itemSize >= 4) array[j++] = this.getW(i)
    }
    return new BufferAttribute(array, itemSize, this.normalized)
  }
}