public function testGetStartingPosition()
{
$this->assertNull($this->boardWalker->getStartingPosition(), 'Starting position should not be set yet');
$this->boardWalker->start(SquareInterface::POSITION_D5)->forward(1);
$this->assertEquals(SquareInterface::POSITION_D5, $this->boardWalker->getStartingPosition(), 'Starting position should still be the same after calling forward()');
$this->assertNotEquals($this->boardWalker->getPosition(), $this->boardWalker->getStartingPosition(), 'Current position and starting position should not match at this point');
$this->boardWalker->restart();
$this->assertEquals(SquareInterface::POSITION_D5, $this->boardWalker->getStartingPosition(), 'Starting position should still be the same after restart()');
}
/**
* {@inheritdoc}
*/
public function configureWalker(BoardWalker $walker, GameInterface $game)
{
$pawnMoves = $game->getMovesByPiece($game->getBoard()->getSquare($walker->getStartingPosition())->getPiece()->getId());
if (empty($pawnMoves)) {
if ($game->getCurrentColor() === Color::WHITE && $walker->getRow() == 2 || $game->getCurrentColor() === Color::BLACK && $walker->getRow() == 7) {
$newPosition = $walker->peek(BoardWalker::DIRECTION_FORWARD, 1);
// allowed to make two steps forward
if ($newPosition && !$game->getBoard()->getSquare($newPosition)->getPiece()) {
$newPosition = $walker->peek(BoardWalker::DIRECTION_FORWARD, 2);
if ($newPosition && !$game->getBoard()->getSquare($newPosition)->getPiece()) {
// temporary check because walker does not seem to consider obstructing pieces of own color
$walker->jump(BoardWalker::DIRECTION_FORWARD, 2)->restart();
}
}
}
}
$walker->forward(1, false)->restart();
$forwardLeftCapture = $walker->peek(BoardWalker::DIRECTION_FORWARDLEFT, 1, null, false, true);
$forwardRightCapture = $walker->peek(BoardWalker::DIRECTION_FORWARDRIGHT, 1, null, false, true);
if ($forwardLeftCapture !== null) {
$walker->forwardLeft(1)->restart();
}
if ($forwardRightCapture !== null) {
$walker->forwardRight(1)->restart();
}
$this->walkEnPassant($walker, $game->getLastMove(false));
}
