/**
* @param string $question
* @return bool
*/
protected function getBooleanAnswer($question)
{
$msg = sprintf("%s (y/n) ", $question);
$this->ioService->printMessageLine($msg);
$answer = $this->ioService->fetchInput();
if (preg_match('/^[yY]/', $answer)) {
return true;
}
return false;
}
/**
* @param Game $game
* @return array (column, row)
*/
public function getMove(Game $game)
{
if ($game->hasEmptyBoard()) {
/*
* If the board is empty, instead of calculating the field to mark,
* we select it by random.
*
* We can do this, because it never worsens this game's result for
* the player: a computer player will still draw with another computer
* player, and not lose with a human player.
*
* We want to do this, because it's quicker than calculating the move.
*/
list($column, $row) = $game->getRandomBoardCoordinates();
} else {
list($column, $row) = $this->getMiniMaxMove($game);
}
$this->ioService->printMessage(sprintf("%s %s\n", $column, $row));
return [$column, $row];
}
/**
* @param Game $game
* @return array (column, row)
*/
public function getMove(Game $game)
{
$move = $this->ioService->fetchInput();
$coordinates = explode(' ', $move);
return [$coordinates[0], $coordinates[1]];
}
