/**
* @param Hole $hole
*
* @return int
*
* @throws AllShipsAreNotPlacedException
*/
public function shot(Hole $hole)
{
if (!$this->areAllShipsPlaced()) {
throw new AllShipsAreNotPlacedException('All ships must be placed before shooting');
}
$y = Hole::letterToNumber($hole->letter()) - 1;
$x = $hole->number() - 1;
$shipId = $this->grid[$y][$x];
if ($shipId !== 0) {
$this->grid[$y][$x] = -abs($this->grid[$y][$x]);
if ($this->isShipSunk($this->ships[abs($shipId)])) {
return self::SUNK;
}
return self::HIT;
}
return self::WATER;
}
