/**
* @param Cell $cell
*
* @return Cell
* @throws AIException
*/
private static function attackCell(Cell $cell) : Cell
{
if ($cell->hasFlag(CellModel::FLAG_DEAD)) {
throw new AIException("cell: {$cell->getId()} already flagged as *DEAD*");
}
return CellModel::switchPhase($cell);
}
/**
* @param Cell $cell
* @param int[] $paths
*
* @return Cell[]
*/
protected function processPaths(Cell $cell, array $paths) : array
{
$cells = [];
foreach ($paths as $path) {
try {
$cells[] = $this->processPath($cell->getBattlefield(), $path, $cell->getCoordinate());
} catch (CellException $e) {
continue;
}
}
return $cells;
}
public static function isShipDead(Cell $cell) : bool
{
if (!$cell->hasFlag(static::FLAG_DEAD_SHIP)) {
return false;
}
foreach ((new PathProcessor($cell->getCoordinate()))->getAdjacentCells($cell->getBattlefield(), 4, static::FLAG_SHIP) as $cell) {
if (!$cell->hasFlag(static::FLAG_DEAD_SHIP)) {
return false;
}
}
return true;
}
/**
* @since 3.5
*
* @param Cell $cell
*
* @return int
*/
private function chooseStrategy(Cell $cell) : int
{
$processor = new PathProcessor($cell->getCoordinate());
$battlefield = $cell->getBattlefield();
foreach (static::$strategyMap as $path => $strategy) {
$processor->setPath($path);
/** @var Cell $cell */
if (null !== ($cell = $battlefield->getCellByCoordinate($processor->calculateNextCoordinate()))) {
if ($cell->hasFlag(CellModel::FLAG_DEAD_SHIP)) {
return $strategy;
}
}
}
return AIStrategyProcessor::STRATEGY_BOTH;
}
/**
* @param Cell $cell
*
* @return Game
* @throws GameProcessorException
*/
public function processTurn(Cell $cell) : Game
{
$game = $cell->getBattlefield()->getGame();
if (null !== $game->getResult()) {
throw new GameProcessorException("game: {$game->getId()} already has result");
}
foreach ($game->getBattlefields() as $battlefield) {
$attacker = $battlefield->getPlayer();
if ($this->processPlayerTurnOnBattlefields($game, $attacker, $cell)) {
$result = (new GameResult())->setPlayer($attacker);
$game->setResult($result);
break;
}
}
return $game;
}
public static function flagWaterAroundShip(Cell $cell)
{
$processor = new PathProcessor($cell->getCoordinate());
$battlefield = $cell->getBattlefield();
$cells = $processor->getAdjacentCells($cell->getBattlefield(), 4, CellModel::FLAG_SHIP);
$cells[$cell->getCoordinate()] = $cell;
foreach ($cells as $cell) {
foreach ($processor->reset($cell->getCoordinate())->getAdjacentCells($battlefield, 1, 0, CellModel::FLAG_SHIP) as $waterCell) {
CellModel::switchPhase($waterCell, CellModel::FLAG_SKIP);
}
}
}