mirror of
https://github.com/scummvm/scummvm-web.git
synced 2026-05-21 05:40:47 +00:00
Eugene Sandulenko
113 lines
3.4 KiB
PHP
113 lines
3.4 KiB
PHP
<?php
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require_once('Models/BasicModel.php');
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require_once('Objects/CompatGame.php');
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require_once('XMLParser.php');
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/**
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* The CompatibilityModel class will generate CompatGame objects.
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*/
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abstract class CompatibilityModel extends BasicModel {
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const NO_VERSION = 'No version specified.';
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const NO_VERSION_TARGET = 'No version and/or target specified.';
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const NOT_FOUND = 'Did not find any games for the specified version.';
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const NO_FILES = 'No compatibility files found.';
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/* Get all the groups and the respectively demos for the specified ScummVM version. */
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static public function getAllData($version) {
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if (!is_string($version)) {
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throw new ErrorException(self::NO_VERSION);
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}
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$fname = DIR_COMPAT . "/compat-{$version}.xml";
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if (!file_exists($fname)) {
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throw new ErrorException(self::NO_FILES);
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}
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$parser = new XMLParser();
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$a = $parser->parseByFilename($fname);
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$entries = array();
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foreach ($a['compatibility']['company'] as $key => $value) {
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$games = array();
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if (is_array($value['games'])) {
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foreach ($value['games']['game'] as $data) {
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$games[] = new CompatGame($data);
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}
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$entries[$value['name']] = $games;
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}
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}
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return $entries;
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}
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/**
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* Compares two version strings and returns an integer less than, equal
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* to, or greater than zero if the first argument is considered to be
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* respectively less than, equal to, or greater than the second.
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*/
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static public function compareVersions($version1, $version2) {
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/* Get the length of the numeric part of the version strings. */
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$lenNumber1 = strspn($version1, ".0123456789");
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$lenNumber2 = strspn($version2, ".0123456789");
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if (($lenNumber1 == $lenNumber2) && (substr($version1, 0, $lenNumber1) == substr($version2, 0, $lenNumber2))) {
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/* Same version number. Handle special cases. */
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$extraVersion1 = substr($version1, $lenNumber1);
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$extraVersion2 = substr($version2, $lenNumber2);
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/* Release candidates go before the final release. */
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$rc1 = substr($extraVersion1, 0, 2);
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$rc2 = substr($extraVersion2, 0, 2);
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if (($rc1 == "rc") && ($rc2 != "rc"))
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return -1;
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if (($rc2 == "rc") && ($rc1 != "rc"))
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return 1;
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/* Break the tie with the standard comparison. */
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}
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return strnatcmp($version1, $version2);
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}
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/* Get version numbers for all available compatibility charts, excluding the DEV charts. */
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static public function getAllVersions() {
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if (!($files = scandir(DIR_COMPAT))) {
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throw new ErrorException(self::NO_FILES);
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}
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$dates = array();
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foreach ($files as $file) {
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if (substr($file, -4) != '.xml') {
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continue;
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}
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/* Always exclude the DEV-chart. */
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if (strpos($file, 'DEV') === false) {
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$dates[] = substr($file, (strpos($file, '-') + 1), -4);
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}
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}
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usort($dates, "CompatibilityModel::compareVersions");
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$dates = array_reverse($dates);
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return $dates;
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}
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/* Get a specific CompatGame-object for the requested version. */
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static public function getGameData($version, $target) {
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if (!is_string($version) || !is_string($target)) {
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throw new ErrorException(self::NO_VERSION_TARGET);
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}
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if (!($all_games = self::getAllData($version))) {
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throw new ErrorException(self::NOT_FOUND);
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}
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$g = null;
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foreach ($all_games as $company => $games) {
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foreach ($games as $game) {
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if ($game->getTarget() == $target) {
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$g = $game;
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break;
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}
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}
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if ($g != null) {
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break;
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}
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}
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if (is_null($g)) {
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throw new ErrorException(self::NOT_FOUND);
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}
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return $g;
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}
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}
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?>
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