/**
* @param Game $game
* @return array
*/
public function getMove(Game $game)
{
$maximizingPlayerMark = $game->getCurrentPlayerMark();
$minimizingPlayerMark = $game->getOtherPlayerMark();
/*
* Initial revenue has to be worse than in the worse case game scenario
*/
$currentRevenue = -self::MAX_REVENUE * 2;
$currentColumn = null;
$currentRow = null;
$boardState = $game->getBoard();
$emptyFields = $boardState->getEmptyFields();
foreach ($emptyFields as $column => $rows) {
foreach ($rows as $row => $emptyValue) {
$boardState->markField($column, $row, $maximizingPlayerMark);
$newRevenue = $this->calculateMiniMaxRevenue($boardState, $maximizingPlayerMark, true, $minimizingPlayerMark);
$boardState->clearField($column, $row);
if ($newRevenue > $currentRevenue) {
$currentRevenue = $newRevenue;
$currentColumn = $column;
$currentRow = $row;
}
}
}
return [$currentColumn, $currentRow];
}
/**
* @param Game $game
*/
private function showBoard(Game $game)
{
$view = $this->boardViewFactory->create($game->getBoard());
$this->ioService->printMessageLine($view->render());
}
public function test_it_returns_game_board()
{
$this->assertEquals($this->board, $this->game->getBoard());
}
