Function charInCellAt

src/ink/screen.ts:666–675

(
  screen: Screen,
  x: number,
  y: number,
)

}

export function charInCellAt(
  screen: Screen,
  x: number,
  y: number,
): string | undefined {
  if (x < 0 || y < 0 || x >= screen.width || y >= screen.height)
    return undefined
  const ci = (y * screen.width + x) << 1
  return screen.charPool.get(screen.cells[ci]!)
}
/**
 * Set a cell, optionally creating a spacer for wide characters.
 *