PocketMine-MP/src/world/generator/FlatGeneratorOptions.php
2025-03-04 20:44:01 +00:00

129 lines
3.6 KiB
PHP

<?php
/*
*
* ____ _ _ __ __ _ __ __ ____
* | _ \ ___ ___| | _____| |_| \/ (_)_ __ ___ | \/ | _ \
* | |_) / _ \ / __| |/ / _ \ __| |\/| | | '_ \ / _ \_____| |\/| | |_) |
* | __/ (_) | (__| < __/ |_| | | | | | | | __/_____| | | | __/
* |_| \___/ \___|_|\_\___|\__|_| |_|_|_| |_|\___| |_| |_|_|
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* @author PocketMine Team
* @link http://www.pocketmine.net/
*
*
*/
declare(strict_types=1);
namespace pocketmine\world\generator;
use pocketmine\data\bedrock\BiomeIds;
use pocketmine\item\LegacyStringToItemParser;
use pocketmine\item\LegacyStringToItemParserException;
use pocketmine\world\World;
use function array_map;
use function explode;
use function preg_match;
use function preg_match_all;
use const PHP_INT_MAX;
/**
* @internal
*/
final class FlatGeneratorOptions{
/**
* @param int[] $structure
* @param mixed[] $extraOptions
* @phpstan-param array<int, int> $structure
* @phpstan-param array<string, array<string, string>|true> $extraOptions
*/
public function __construct(
private array $structure,
private int $biomeId,
private array $extraOptions = []
){}
/**
* @return int[]
* @phpstan-return array<int, int>
*/
public function getStructure() : array{ return $this->structure; }
public function getBiomeId() : int{ return $this->biomeId; }
/**
* @return mixed[]
* @phpstan-return array<string, array<string, string>|true>
*/
public function getExtraOptions() : array{ return $this->extraOptions; }
/**
* @return int[]
* @phpstan-return array<int, int>
*
* @throws InvalidGeneratorOptionsException
*/
public static function parseLayers(string $layers) : array{
$result = [];
$split = array_map('\trim', explode(',', $layers, limit: World::Y_MAX - World::Y_MIN));
$y = 0;
$itemParser = LegacyStringToItemParser::getInstance();
foreach($split as $line){
if(preg_match('#^(?:(\d+)[x|*])?(.+)$#', $line, $matches) !== 1){
throw new InvalidGeneratorOptionsException("Invalid preset layer \"$line\"");
}
$cnt = $matches[1] !== "" ? (int) $matches[1] : 1;
try{
$b = $itemParser->parse($matches[2])->getBlock();
}catch(LegacyStringToItemParserException $e){
throw new InvalidGeneratorOptionsException("Invalid preset layer \"$line\": " . $e->getMessage(), 0, $e);
}
for($cY = $y, $y += $cnt; $cY < $y; ++$cY){
$result[$cY] = $b->getStateId();
}
}
return $result;
}
/**
* @throws InvalidGeneratorOptionsException
*/
public static function parsePreset(string $presetString) : self{
$preset = explode(";", $presetString, limit: 4);
$blocks = $preset[1] ?? "";
$biomeId = (int) ($preset[2] ?? BiomeIds::PLAINS);
$optionsString = $preset[3] ?? "";
$structure = self::parseLayers($blocks);
$options = [];
//TODO: more error checking
preg_match_all('#(([0-9a-z_]{1,})\(?([0-9a-z_ =:]{0,})\)?),?#', $optionsString, $matches);
foreach($matches[2] as $i => $option){
$params = true;
if($matches[3][$i] !== ""){
$params = [];
$p = explode(" ", $matches[3][$i], limit: PHP_INT_MAX);
foreach($p as $k){
//TODO: this should be limited to 2 parts, but 3 preserves old behaviour when given e.g. treecount=20=1
$k = explode("=", $k, limit: 3);
if(isset($k[1])){
$params[$k[0]] = $k[1];
}
}
}
$options[$option] = $params;
}
return new self($structure, $biomeId, $options);
}
}