public function testGetIterator()
{
$coordsArray = ['A1', 'J10', 'J1', 'B2', 'A10'];
$coordsCollection = new CoordsCollection($coordsArray);
$this->assertInstanceOf('\\ArrayIterator', $coordsCollection->getIterator());
$this->assertEquals(count($coordsArray), $coordsCollection->getIterator()->count());
}
/**
* @param Event $event
* @return CoordsCollection
*/
private function getAttackerShots(Event $event)
{
$shotEvents = $this->eventRepository->findForGameByTypeAndPlayer($event->getGame(), Event::TYPE_SHOT, $event->getPlayer());
$attackerShots = new CoordsCollection();
foreach ($shotEvents as $shotEvent) {
$attackerShots->append($shotEvent->getValue());
}
return $attackerShots;
}
/**
* @param CoordsCollection $shipsCollection
* @throws InvalidShipsException
*/
private function validateShipsTypes(CoordsCollection $shipsCollection)
{
// sizes of ships to be count
$shipsTypes = [1 => 0, 2 => 0, 3 => 0, 4 => 0];
// B3 (index 12), going 2 down and 3 left is D6 (index 35), so 12 + (2 * 10) + (3 * 1) = 35
$directionOffsets = [CoordsManager::OFFSET_RIGHT, CoordsManager::OFFSET_BOTTOM];
$checkedCoordsCollection = new CoordsCollection();
foreach ($shipsCollection as $shipCoords) {
// we ignore masts which have already been marked as a part of a ship
if ($checkedCoordsCollection->contains($shipCoords)) {
continue;
}
$shipLength = 1;
foreach ($directionOffsets as $offset) {
$checkCoords = $this->coordsManager->getByOffset($shipCoords, $offset);
// check for masts until the battleground border is reached
while ($shipsCollection->contains($checkCoords)) {
// ship is too long
if (++$shipLength > self::MAX_SHIP_LENGTH) {
throw new InvalidShipsException(sprintf('Ships can\'t have more than %d masts', self::MAX_SHIP_LENGTH));
}
// mark the mast as already checked
$checkedCoordsCollection->append($checkCoords);
$checkCoords = $this->coordsManager->getByOffset($checkCoords, $offset);
}
// masts found so don't look for more
if ($shipLength > 1) {
break;
}
}
$shipsTypes[$shipLength]++;
}
// whether the number of different ship types is correct
$diff = array_diff_assoc($shipsTypes, [1 => 4, 2 => 3, 3 => 2, 4 => 1]);
if (!empty($diff)) {
throw new InvalidShipsException('Number of ships\' types is incorrect');
}
}