interface Context {
  itemsCount: number
}

interface Position {
  x: number
  y: number
}

function memoryGap(): number {
  return memorySide() + memorySpace()
}

function memoryGroups(c: Context): Record<number, number> {
  var items: Record<number, number> = {};
  // @ts-ignore
  let ids = utsIndexArray(c.itemsCount);
  ids.forEach(i => {
    // @ts-ignore
    items[Number(i)] = utsFloor(Number(i) / 2)
  })
  return items;
}

function memorySide(): number {
  return 50
}

function memorySpace(): number {
  return 20
}

function memoryItemPositions(c: Context): Position[] {
  var pos: Position[] = []

  // @ts-ignore
  let ids = utsIndexArray(c.itemsCount);
  ids.forEach(i => {
    // @ts-ignore
    let row = utsFloor(Number(i) / 4)
    let x = memoryGap() + (Number(i) - row * 4) * memoryGap()
    let y = memoryGap() + row * memoryGap()
    // @ts-ignore
    pos.push(memoryCreatePosition(x, y))
  })
  return pos
}