Function hasVisibleCellAt

src/ink/screen.ts:734–747

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

}

export function hasVisibleCellAt(screen: Screen, x: number, y: number): boolean {
  if (x < 0 || y < 0 || x >= screen.width || y >= screen.height) {
    return false
  }
  const ci = (y * screen.width + x) << 1
  const charId = screen.cells[ci]!
  if (charId === 1) {
    return false
  }
  if (charId !== 0) {
    return true
  }
  return (screen.cells[ci + 1]! & 0x3fffc) !== 0
}

export type FillableSpaceGapBlocker =
  | 'none'