interface Context {
  itemsCount: number
}

interface Position {
  x: number
  y: number
}

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

function memorySide(): number {
  return 50
}

function memorySpace(): number {
  return 20
}

function memoryItemPositions(c: Context): Position[] {
  var pos: Position[] = []
  for (var i = 0; i < c.itemsCount; i++) {
    let row = Math.floor(i / 4)
    let x = memoryGap() + (i - row * 4) * memoryGap()
    let y = memoryGap() + row * memoryGap()
    // @ts-ignore
    pos.push(memoryCreatePosition(x, y))
  }
  return pos
}