NateTheGreatt

export const Bitmask = (length, type=Uint32Array) => {

  const bitsPerMask = type.BYTES_PER_ELEMENT * 8,
        totalBytes = Math.ceil(length / bitsPerMask) * type.BYTES_PER_ELEMENT,
        masks = new type(new SharedArrayBuffer(totalBytes))

  const on = (i) => {
      const masksIndex = Math.floor(i/bitsPerMask)
      const index = i - bitsPerMask*masksIndex
      const bitflag = Math.pow(2,index)