libpairtwo/src/Tournament.php

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<?php
/**
* Created by PhpStorm.
* User: jeroen
* Date: 1/02/19
* Time: 11:18
*/
namespace JeroenED\Libpairtwo;
use JeroenED\Libpairtwo\Enums\Tiebreak;
use JeroenED\Libpairtwo\Enums\Color;
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class Tournament extends Tiebreaks
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{
/**
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* Gets a player by its ID
*
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* @param integer $id
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* @return Player
*/
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public function getPlayerById(int $id)
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{
return $this->GetPlayers()[$id];
}
/**
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* Adds a player
*
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* @param Player $Player
*/
public function addPlayer(Player $Player)
{
$newArray = $this->GetPlayers();
$newArray[] = $Player;
$this->setPlayers($newArray);
}
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/**
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* Updates player on id to the given Player object
*
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* @param int $id
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* @param Player $player
*/
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public function updatePlayer(int $id, Player $player)
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{
$newArray = $this->GetPlayers();
$newArray[$id] = $player;
$this->setPlayers($newArray);
}
/**
* Adds a Tiebreak
*
* @param Tiebreak $tiebreak
*/
public function addTiebreak(Tiebreak $tiebreak)
{
$newArray = $this->getTiebreaks();
$newArray[] = $tiebreak;
$this->setTiebreaks($newArray);
}
/**
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* Adds a round with given Round object
*
* @param Round $round
*/
public function addRound(Round $round)
{
$newArray = $this->getRounds();
$newArray[$round->getRoundNo()] = $round;
$this->setRounds($newArray);
}
/**
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* Gets a round by its number.
*
* @param int $roundNo
* @return Round
*/
public function getRoundByNo(int $roundNo): Round
{
return $this->getRounds()[$roundNo];
}
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/**
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* Adds a pairing to the tournament
*
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* @param Pairing $pairing
*/
public function addPairing(Pairing $pairing)
{
$newArray = $this->GetPairings();
$newArray[] = $pairing;
$this->setPairings($newArray);
}
/**
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* Converts pairings into games with a black and white player
*/
public function pairingsToRounds(): void
{
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/** @var Pairing[] $pairings */
$pairings = $this->getPairings();
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/** @var Pairing[] */
$cache = array();
foreach ($pairings as $pairing) {
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// Add pairing to player
$pairing->getPlayer()->addPairing($pairing);
$round = $pairing->getRound();
$color = $pairing->getColor();
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$this->getRoundByNo($round)->addPairing($pairing);
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$opponent = null;
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foreach ($cache as $key=>$cached) {
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if (!is_null($cached)) {
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if (($cached->getOpponent() == $pairing->getPlayer()) && ($cached->getRound() == $pairing->getRound())) {
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$opponent = $cached;
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$cache[$key] = null;
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break;
}
}
}
$game = new Game();
if ($color->getValue() == Color::white) {
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$game->setWhite($pairing);
$game->setBlack($opponent);
} elseif ($color->getValue() == Color::black) {
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$game->setWhite($opponent);
$game->setBlack($pairing);
}
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if (is_null($game->getWhite()) || is_null($game->getBlack())) {
$cache[] = $pairing;
} else {
// Check if game already exists
if (!$this->GameExists($game, $round)) {
$this->AddGame($game, $round);
}
}
}
}
/**
* Checks if a game already is already registered
*
* @param Game $game
* @param int $round
* @return bool
*/
public function GameExists(Game $game, int $round = -1): bool
{
$search = [ $round ];
if ($round == -1) {
$search = [];
for ($i = 0; $i < $this->getNoOfRounds(); $i++) {
$search[] = $i;
}
}
foreach ($search as $round) {
if (!isset($this->getRounds()[$round])) {
return false;
}
$games = $this->getRounds()[$round]->getGames();
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if (is_null($games)) {
return false;
}
foreach ($games as $roundgame) {
if ($roundgame->getWhite() == $game->getWhite() &&
$roundgame->getBlack() == $game->getBlack() &&
$roundgame->getResult() == $game->getResult()
) {
return true;
}
}
}
return false;
}
/**
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* Adds a game to the tournament
*
* @param Game $game
* @param int $round
*/
public function addGame(Game $game, int $round)
{
if (!isset($this->getRounds()[$round])) {
$roundObj = new Round();
$roundObj->setRoundNo($round);
$this->addRound($roundObj);
}
$this->getRoundByNo($round)->addGame($game);
}
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/**
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* Gets the ranking of the tournament
*
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* @return Player[]
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*/
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public function getRanking()
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{
$players = $this->getPlayers();
foreach ($this->getTiebreaks() as $tbkey=>$tiebreak) {
foreach ($players as $pkey => $player) {
$break = $this->calculateTiebreak($tiebreak, $player, $tbkey);
$tiebreaks = $player->getTiebreaks();
$tiebreaks[$tbkey] = $break;
$player->setTiebreaks($tiebreaks);
$this->updatePlayer($pkey, $player);
}
}
$sortedplayers[0] = $players;
foreach ($this->getTiebreaks() as $tbkey=>$tiebreak) {
$newgroupkey = 0;
$tosortplayers = $sortedplayers;
$sortedplayers = [];
foreach ($tosortplayers as $groupkey=>$sortedplayerselem) {
usort($tosortplayers[$groupkey], $this->SortTiebreak($tbkey));
foreach ($tosortplayers[$groupkey] as $playerkey => $player) {
if (!is_null($player->getTiebreaks()[$tbkey])) {
if ($playerkey != 0) {
$newgroupkey++;
if ($player->getTiebreaks()[$tbkey] == $tosortplayers[$groupkey][$playerkey - 1]->getTiebreaks()[$tbkey]) {
$newgroupkey--;
}
}
}
$sortedplayers[$newgroupkey][] = $player;
}
$newgroupkey++;
}
}
$finalarray = [];
foreach ($sortedplayers as $sort1) {
foreach ($sort1 as $player) {
$finalarray[] = $player;
}
}
return $finalarray;
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}
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/**
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* @param Player $a
* @param Player $b
* @return \Closure
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*/
private function sortTiebreak(int $key)
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{
return function (Player $a, Player $b) use ($key) {
if (($b->getTiebreaks()[$key] == $a->getTiebreaks()[$key]) || ($a->getTiebreaks()[$key] === false) || ($b->getTiebreaks()[$key] === false)) {
return 0;
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}
return ($b->getTiebreaks()[$key] > $a->getTiebreaks()[$key]) ? +1 : -1;
};
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}
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/**
* @return float|bool
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*/
private function calculateTiebreak(Tiebreak $tiebreak, Player $player, int $tbkey = 0): ?float
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{
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switch ($tiebreak) {
case Tiebreak::Keizer:
return $this->calculateKeizer($player);
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break;
case Tiebreak::American:
return $this->calculateAmerican($player);
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break;
case Tiebreak::Points:
return $this->calculatePoints($player);
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break;
case Tiebreak::Baumbach:
return $this->calculateBaumbach($player);
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break;
case Tiebreak::BlackPlayed:
return $this->calculateBlackPlayed($player);
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break;
case Tiebreak::BlackWin:
return $this->calculateBlackWin($player);
break;
case Tiebreak::Between:
return $this->calculateMutualResult($player, $this->getPlayers(), $tbkey);
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break;
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case Tiebreak::Aro:
return $this->calculateAverageRating($player);
break;
default:
return null;
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}
}
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/**
* Return the average rating for tournament
*
* @return int
*/
public function getAverageElo(): int
{
$totalrating = 0;
$players = 0;
foreach ($this->getPlayers() as $player) {
$toadd = $player->getElos()['home'];
if ($toadd == 0) {
$toadd = $this->getNonRatedElo();
}
$totalrating += $toadd;
$players++;
}
return intdiv($totalrating, $players);
}
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}