/**
* @param string $mast
* @param CoordsCollection $allShips
* @param CoordsCollection $allShots
* @param string $offset
* @return bool
*/
private function remainingMastInDirectionExists($mast, CoordsCollection $allShips, CoordsCollection $allShots, $offset)
{
while ($allShips->contains($mast)) {
if (!$allShots->contains($mast)) {
return true;
}
$mast = $this->coordsManager->getByOffset($mast, $offset);
}
return false;
}
/**
* @inheritdoc
*/
public function validate($value, Constraint $constraint)
{
if (!$constraint instanceof EventValue) {
throw new UnexpectedTypeException($constraint, sprintf('%s\\EventValue', __NAMESPACE__));
}
if (!$value instanceof Event) {
throw new UnexpectedTypeException($value, 'AppBundle\\Entity\\Event');
}
switch ($value->getType()) {
case Event::TYPE_SHOT:
$this->coordsManager->validateCoords($value->getValue());
break;
default:
break;
}
}
/**
* @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');
}
}
/**
* @expectedException \AppBundle\Exception\InvalidOffsetException
* @expectedExceptionMessage Invalid offset provided: invalidOffset
*/
public function testGetByOffsetThrowsExceptionOnIncorrectOffset()
{
$this->coordsManager->getByOffset('coords', 'invalidOffset');
}