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Added support for move objects(from and to) in getparsed method

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This commit is contained in:
DHTMLGoodies
2013-01-25 16:54:09 +01:00
parent 74900962f4
commit f117acc00e
2 changed files with 91 additions and 80 deletions
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129
FenParser0x88.php
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@@ -16,7 +16,8 @@ class FenParser0x88
} }
} }
public function newGame($fen = 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1'){ public function newGame($fen = 'rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/RNBQKBNR w KQkq - 0 1')
{
$this->validMoves = null; $this->validMoves = null;
$this->setFen($fen); $this->setFen($fen);
} }
@@ -33,7 +34,7 @@ class FenParser0x88
'blackSliding' => array(), 'blackSliding' => array(),
'king' => array('white' => null, 'black' => null) 'king' => array('white' => null, 'black' => null)
); );
if($this->fen){ if ($this->fen) {
$this->previousFen = $this->fen; $this->previousFen = $this->fen;
} }
$this->fen = $fen; $this->fen = $fen;
@@ -43,7 +44,8 @@ class FenParser0x88
private $longNotation; private $longNotation;
public function getLongNotation(){ public function getLongNotation()
{
return $this->longNotation; return $this->longNotation;
} }
@@ -52,7 +54,8 @@ class FenParser0x88
* @param bool $shortNotation * @param bool $shortNotation
* @return string * @return string
*/ */
public function getLongNotationForAMove($move, $shortNotation) { public function getLongNotationForAMove($move, $shortNotation)
{
if (strstr($shortNotation, 'O-')) { if (strstr($shortNotation, 'O-')) {
return $shortNotation; return $shortNotation;
} }
@@ -64,7 +67,7 @@ class FenParser0x88
$type = Board0x88Config::$typeMapping[$type]; $type = Board0x88Config::$typeMapping[$type];
$separator = strstr($shortNotation, 'x') >= 0 ? 'x' : '-'; $separator = strstr($shortNotation, 'x') >= 0 ? 'x' : '-';
$ret = $type . $fromSquare .$separator .$toSquare; $ret = $type . $fromSquare . $separator . $toSquare;
if (isset($move['promoteTo'])) { if (isset($move['promoteTo'])) {
$ret .= '=' + $move['promoteTo']; $ret .= '=' + $move['promoteTo'];
@@ -127,7 +130,8 @@ class FenParser0x88
} }
} }
public function getPieceOnSquare($square) { public function getPieceOnSquare($square)
{
$piece = $this->cache['board'][$square]; $piece = $this->cache['board'][$square];
if (isset($piece)) { if (isset($piece)) {
return array( return array(
@@ -142,9 +146,10 @@ class FenParser0x88
return null; return null;
} }
public function isValid($move, $fen){ public function isValid($move, $fen)
{
$this->setFen($fen); $this->setFen($fen);
if(!isset($move['from'])){ if (!isset($move['from'])) {
$fromAndTo = $this->getFromAndToByNotation($move[CHESS_JSON::MOVE_NOTATION]); $fromAndTo = $this->getFromAndToByNotation($move[CHESS_JSON::MOVE_NOTATION]);
$move['from'] = $fromAndTo['from']; $move['from'] = $fromAndTo['from'];
$move['to'] = $fromAndTo['to']; $move['to'] = $fromAndTo['to'];
@@ -155,7 +160,7 @@ class FenParser0x88
$obj = $this->getValidMovesAndResult(); $obj = $this->getValidMovesAndResult();
$moves = $obj['moves']; $moves = $obj['moves'];
if(isset($moves[$from]) && in_array($to, $moves[$from])){ if (isset($moves[$from]) && in_array($to, $moves[$from])) {
return true; return true;
} }
return false; return false;
@@ -207,7 +212,8 @@ class FenParser0x88
return Board0x88Config::$colorAbbreviations[$this->fenParts['color']]; return Board0x88Config::$colorAbbreviations[$this->fenParts['color']];
} }
function switchColor() { function switchColor()
{
$this->fenParts['color'] = $this->fenParts['color'] == 'w' ? 'b' : 'w'; $this->fenParts['color'] = $this->fenParts['color'] == 'w' ? 'b' : 'w';
} }
@@ -310,7 +316,7 @@ class FenParser0x88
$paths[] = $piece['s'] - 15; $paths[] = $piece['s'] - 15;
} }
} }
if($piece['s'] - 17 >= 0){ if ($piece['s'] - 17 >= 0) {
if (!isset($pinned[$piece['s']]) || ($pinned[$piece['s']] && $pinned[$piece['s']]['by'] === $piece['s'] - 17)) { if (!isset($pinned[$piece['s']]) || ($pinned[$piece['s']] && $pinned[$piece['s']]['by'] === $piece['s'] - 17)) {
if ($enPassantSquare == $piece['s'] - 17 || ($this->cache['board'][$piece['s'] - 17]) && !($this->cache['board'][$piece['s'] - 17] & 0x8)) { if ($enPassantSquare == $piece['s'] - 17 || ($this->cache['board'][$piece['s'] - 17]) && !($this->cache['board'][$piece['s'] - 17] & 0x8)) {
$paths[] = $piece['s'] - 17; $paths[] = $piece['s'] - 17;
@@ -391,8 +397,9 @@ class FenParser0x88
if ($kingSideCastle if ($kingSideCastle
&& !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s']]) && !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s']])
&& ($piece['s'] < 118 && !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s'] + 1]) ) && ($piece['s'] < 118 && !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s'] + 1]))
&& ($piece['s'] < 117 && !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s'] + 2]))) { && ($piece['s'] < 117 && !strstr($protectiveMoves, Board0x88Config::$keySquares[$piece['s'] + 2]))
) {
$paths[] = $piece['s'] + 2; $paths[] = $piece['s'] + 2;
} }
@@ -411,8 +418,7 @@ class FenParser0x88
$result = 0; $result = 0;
if ($checks && !$totalCountMoves) { if ($checks && !$totalCountMoves) {
$result = $color === 'black' ? 1 : -1; $result = $color === 'black' ? 1 : -1;
} } else if (!$checks && !$totalCountMoves) {
else if (!$checks && !$totalCountMoves) {
$result = .5; $result = .5;
} }
$this->validMoves = array('moves' => $ret, 'result' => $result, 'check' => $checks); $this->validMoves = array('moves' => $ret, 'result' => $result, 'check' => $checks);
@@ -525,8 +531,7 @@ class FenParser0x88
case 0x0E: case 0x0E:
if ($numericDistance % 16 === 0) { if ($numericDistance % 16 === 0) {
$ret[] = array('s' => $piece['s'], 'p' => $boardDistance); $ret[] = array('s' => $piece['s'], 'p' => $boardDistance);
} } else if (($piece['s'] & 240) == ($king['s'] & 240)) {
else if (($piece['s'] & 240) == ($king['s'] & 240)) {
$ret[] = array('s' => $piece['s'], 'p' => $numericDistance > 0 ? 1 : -1); $ret[] = array('s' => $piece['s'], 'p' => $numericDistance > 0 ? 1 : -1);
} }
break; break;
@@ -535,8 +540,7 @@ class FenParser0x88
case 0x0F: case 0x0F:
if ($numericDistance % 15 === 0 || $numericDistance % 17 === 0 || $numericDistance % 16 === 0) { if ($numericDistance % 15 === 0 || $numericDistance % 17 === 0 || $numericDistance % 16 === 0) {
$ret[] = array('s' => $piece['s'], 'p' => $boardDistance); $ret[] = array('s' => $piece['s'], 'p' => $boardDistance);
} } else if (($piece['s'] & 240) == ($king['s'] & 240)) {
else if (($piece['s'] & 240) == ($king['s'] & 240)) {
$ret[] = (array('s' => $piece['s'], 'p' => $numericDistance > 0 ? 1 : -1)); $ret[] = (array('s' => $piece['s'], 'p' => $numericDistance > 0 ? 1 : -1));
} }
break; break;
@@ -584,9 +588,11 @@ class FenParser0x88
return $ret; return $ret;
} }
public function getBoardCache(){ public function getBoardCache()
{
return $this->cache['board']; return $this->cache['board'];
} }
/** /**
* Return valid squares for other pieces than king to move to when in check, i.e. squares * Return valid squares for other pieces than king to move to when in check, i.e. squares
* which avoids the check * which avoids the check
@@ -806,16 +812,23 @@ class FenParser0x88
} }
public function getParsed($move){ public function getParsed($move)
if($move['m'] == '--'){ {
if (is_string($move)) $move = array('m' => $move);
if (isset($move['m'])) {
if ($move['m'] == '--') {
$this->fen = null; $this->fen = null;
$this->switchColor(); $this->switchColor();
return array( return array(
'm' => $move['m'] , 'm' => $move['m'],
'fen' => $this->getFen() 'fen' => $this->getFen()
); );
} }
$fromAndTo = $this->getFromAndToByNotation($move['m']); $fromAndTo = $this->getFromAndToByNotation($move['m']);
}else{
$fromAndTo = $move;
}
$this->makeMove($fromAndTo); $this->makeMove($fromAndTo);
$newProperties = array( $newProperties = array(
'from' => $fromAndTo['from'], 'from' => $fromAndTo['from'],
@@ -858,17 +871,16 @@ class FenParser0x88
$ret['to'] = $this->getToSquareByNotation($notation); $ret['to'] = $this->getToSquareByNotation($notation);
switch ($pieceType) { switch ($pieceType) {
case 0x01: case 0x01:
case 0x09: case 0x09:
if ($color === 'black') { if ($color === 'black') {
$offsets = array(15, 17,16); $offsets = array(15, 17, 16);
if($ret['to'] >= 64){ if ($ret['to'] >= 64) {
$offsets[] = 32; $offsets[] = 32;
} }
} else { } else {
$offsets = array(-15, -17,-16); $offsets = array(-15, -17, -16);
if($ret['to'] < 64){ if ($ret['to'] < 64) {
$offsets[] = -32; $offsets[] = -32;
} }
} }
@@ -916,7 +928,7 @@ class FenParser0x88
if ($this->cache['board'][$sq] && $this->cache['board'][$sq] === $pieceType) { if ($this->cache['board'][$sq] && $this->cache['board'][$sq] === $pieceType) {
$foundPieces[] = ($sq); $foundPieces[] = ($sq);
} }
if($this->cache['board'][$sq]){ if ($this->cache['board'][$sq]) {
break; break;
} }
$sq += $patterns[$i]; $sq += $patterns[$i];
@@ -930,15 +942,14 @@ class FenParser0x88
$ret['from'] = $foundPieces[0]; $ret['from'] = $foundPieces[0];
} else { } else {
if ($fromRank!==null && $fromRank >= 0) { if ($fromRank !== null && $fromRank >= 0) {
for ($i = 0, $len = count($foundPieces); $i < $len; $i++) { for ($i = 0, $len = count($foundPieces); $i < $len; $i++) {
if ($this->isOnSameRank($foundPieces[$i], $fromRank)) { if ($this->isOnSameRank($foundPieces[$i], $fromRank)) {
$ret['from'] = $foundPieces[$i]; $ret['from'] = $foundPieces[$i];
break; break;
} }
} }
} } else if ($fromFile !== null && $fromFile >= 0) {
else if ($fromFile !== null && $fromFile >= 0) {
for ($i = 0, $len = count($foundPieces); $i < $len; $i++) { for ($i = 0, $len = count($foundPieces); $i < $len; $i++) {
if ($this->isOnSameFile($foundPieces[$i], $fromFile)) { if ($this->isOnSameFile($foundPieces[$i], $fromFile)) {
$ret['from'] = $foundPieces[$i]; $ret['from'] = $foundPieces[$i];
@@ -946,11 +957,11 @@ class FenParser0x88
} }
} }
} }
if(!isset($ret['from'])){ if (!isset($ret['from'])) {
$config = $this->getValidMovesAndResult(); $config = $this->getValidMovesAndResult();
$moves = $config['moves']; $moves = $config['moves'];
foreach($foundPieces as $piece){ foreach ($foundPieces as $piece) {
if(in_array($ret['to'], $moves[$piece])){ if (in_array($ret['to'], $moves[$piece])) {
$ret['from'] = $piece; $ret['from'] = $piece;
break; break;
} }
@@ -958,8 +969,8 @@ class FenParser0x88
} }
} }
if(!isset($ret['from'])){ if (!isset($ret['from'])) {
$msg = $this->fen .", ". $notation.", Rank:". $fromRank. ", File:". $fromFile.",". count($foundPieces).", ". $foundPieces[0]; $msg = $this->fen . ", " . $notation . ", Rank:" . $fromRank . ", File:" . $fromFile . "," . count($foundPieces) . ", " . $foundPieces[0];
throw new Exception($msg); throw new Exception($msg);
} }
$ret['from'] = Board0x88Config::$numberToSquareMapping[$ret['from']]; $ret['from'] = Board0x88Config::$numberToSquareMapping[$ret['from']];
@@ -968,29 +979,31 @@ class FenParser0x88
return $ret; return $ret;
} }
public function hasThreeFoldRepetition($fens = array()){ public function hasThreeFoldRepetition($fens = array())
if(!count($fens))return false; {
if (!count($fens)) return false;
$shortenedFens = array(); $shortenedFens = array();
foreach($fens as $fen){ foreach ($fens as $fen) {
$fen = array_slice(explode(" ", $fen), 0, 3); $fen = array_slice(explode(" ", $fen), 0, 3);
$fen = implode(" ", $fen); $fen = implode(" ", $fen);
$shortenedFens[] = $fen; $shortenedFens[] = $fen;
} }
$lastFen = $shortenedFens[count($shortenedFens)-1]; $lastFen = $shortenedFens[count($shortenedFens) - 1];
$count = array_count_values($shortenedFens); $count = array_count_values($shortenedFens);
return $count[$lastFen] >= 2; return $count[$lastFen] >= 2;
} }
public function getPromoteByNotation($notation){ public function getPromoteByNotation($notation)
if(strstr($notation,'=')){ {
$piece = preg_replace("/^.*?=([QRBN]).*$/",'$1', $notation); if (strstr($notation, '=')) {
$piece = preg_replace("/^.*?=([QRBN]).*$/", '$1', $notation);
return Board0x88Config::$pieceAbbr[$piece]; return Board0x88Config::$pieceAbbr[$piece];
} }
if(preg_match("/[a-h][18][NBRQ]/", $notation)){ if (preg_match("/[a-h][18][NBRQ]/", $notation)) {
$notation = preg_replace("/[^a-h18NBRQ]/s", "", $notation); $notation = preg_replace("/[^a-h18NBRQ]/s", "", $notation);
return Board0x88Config::$pieceAbbr[substr($notation, strlen($notation)-1, 1)]; return Board0x88Config::$pieceAbbr[substr($notation, strlen($notation) - 1, 1)];
} }
return ''; return '';
} }
@@ -1016,7 +1029,7 @@ class FenParser0x88
function getToSquareByNotation($notation) function getToSquareByNotation($notation)
{ {
$notation = preg_replace("/.*([a-h][1-8]).*/s", '$1', $notation); $notation = preg_replace("/.*([a-h][1-8]).*/s", '$1', $notation);
if(isset(Board0x88Config::$mapping[$notation])){ if (isset(Board0x88Config::$mapping[$notation])) {
return Board0x88Config::$mapping[$notation]; return Board0x88Config::$mapping[$notation];
} }
return ''; return '';
@@ -1024,28 +1037,26 @@ class FenParser0x88
function getPieceTypeByNotation($notation, $color = null) function getPieceTypeByNotation($notation, $color = null)
{ {
$notation = preg_replace("/\=[QRNB]/s", "", $notation);
if ($notation === 'O-O-O' || $notation === 'O-O') { if ($notation === 'O-O-O' || $notation === 'O-O') {
$notation = 'K'; $pieceType = 'K';
} else { } else {
$notation = preg_replace("/.*?([NRBQK]).*/s", '$1', $notation); $token = substr($notation, 0, 1);
if (!$notation || strlen($notation) > 1) { $pieceType = preg_match("/[NRBQK]/", $token) ? $token : 'P';
$notation = 'P';
}
} }
$notation = Board0x88Config::$pieces[$notation]; $pieceType = Board0x88Config::$pieces[$pieceType];
if ($color === 'black') { if ($color === 'black') {
$notation += 8; $pieceType += 8;
} }
return $notation; return $pieceType;
} }
private $piecesInvolved; private $piecesInvolved;
private $notation; private $notation;
private $validMoves = null; private $validMoves = null;
function move($move) function move($move)
{ {
$this->fen = null; $this->fen = null;
@@ -1092,7 +1103,8 @@ class FenParser0x88
return $this->fenParts['castle']; return $this->fenParts['castle'];
} }
function getCastleCode(){ function getCastleCode()
{
return $this->fenParts['castleCode']; return $this->fenParts['castleCode'];
} }
@@ -1306,8 +1318,7 @@ class FenParser0x88
if (array_search($move['to'], $moves) >= 0) { if (array_search($move['to'], $moves) >= 0) {
if (($square & 15) != ($move['from'] & 15)) { if (($square & 15) != ($move['from'] & 15)) {
$ret += Board0x88Config::$fileMapping[$move['from'] & 15]; $ret += Board0x88Config::$fileMapping[$move['from'] & 15];
} } else if (($square & 240) != ($move['from'] & 240)) {
else if (($square & 240) != ($move['from'] & 240)) {
$ret += Board0x88Config::$rankMapping[$move['from'] & 240]; $ret += Board0x88Config::$rankMapping[$move['from'] & 240];
} }
} }

2
test/ParserTest.php
View File

@@ -1765,7 +1765,7 @@ class ParserTest extends PHPUnit_Framework_TestCase
/** /**
* @test * @test
*/ */
public function shouldDetermine3FoldReptition(){ public function shouldDetermine3FoldRepetition(){
// given // given
$parser = new FenParser0x88(); $parser = new FenParser0x88();
// when // when