/**
* @param Ship $ship
* @param Hole $hole
* @param Position $position
*
* @return Grid
*
* @throws ShipAlreadyPlacedException
*/
public function placeShip(Ship $ship, Hole $hole, Position $position)
{
$grid = static::fromGrid($this);
$shipId = $ship->id();
if (isset($grid->ships[$shipId])) {
throw new ShipAlreadyPlacedException();
}
for ($i = 0; $i < $ship->size(); ++$i) {
$x = Hole::letterToNumber($hole->letter()) + ($position->equals(Position::fromVertical()) ? $i : 0) - 1;
$y = $hole->number() + ($position->equals(Position::fromHorizontal()) ? $i : 0) - 1;
if (!isset($grid->grid[$x][$y])) {
throw new \OutOfBoundsException('Ship does not fit into the grid with such a hole and position');
}
if ($grid->grid[$x][$y] > 0) {
throw new \InvalidArgumentException('Ship overlaps with another one, please choose another space.');
}
$grid->grid[$x][$y] = $ship->id();
$grid->ships[$shipId] = $ship;
}
return $grid;
}
public function gridsAndTheirRenderingDataProvider()
{
return [['1111100000' . '2222000000' . '3330000000' . '4440000000' . '5500000000' . '0000000000' . '0000000000' . '0000000000' . '0000000000' . '0000000000', (new Grid())->placeShip(new Carrier(), new Hole('A', 1), Position::fromHorizontal())->placeShip(new Battleship(), new Hole('B', 1), Position::fromHorizontal())->placeShip(new Cruiser(), new Hole('C', 1), Position::fromHorizontal())->placeShip(new Submarine(), new Hole('D', 1), Position::fromHorizontal())->placeShip(new Destroyer(), new Hole('E', 1), Position::fromHorizontal())], ['4000000002' . '4000000002' . '4000000002' . '0000000002' . '0000000000' . '0000000000' . '0000000000' . '3000000005' . '3000000005' . '3000011111', (new Grid())->placeShip(new Carrier(), new Hole('J', 6), Position::fromHorizontal())->placeShip(new Battleship(), new Hole('A', 10), Position::fromVertical())->placeShip(new Cruiser(), new Hole('H', 1), Position::fromVertical())->placeShip(new Submarine(), new Hole('A', 1), Position::fromVertical())->placeShip(new Destroyer(), new Hole('H', 10), Position::fromVertical())]];
}
