ListCommand.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\command\defaults;
 
use pocketmine\command\CommandSender;
use pocketmine\lang\KnownTranslationFactory;
use pocketmine\permission\DefaultPermissionNames;
use pocketmine\player\Player;
use function array_filter;
use function array_map;
use function count;
use function implode;
use function sort;
use const SORT_STRING;
 
class ListCommand extends VanillaCommand{
 
    public function __construct(string $namespace, string $name){
        parent::__construct(
            $namespace,
            $name,
            KnownTranslationFactory::pocketmine_command_list_description()
        );
        $this->setPermission(DefaultPermissionNames::COMMAND_LIST);
    }
 
    public function execute(CommandSender $sender, string $commandLabel, array $args){
        $playerNames = array_map(function(Player $player) : string{
            return $player->getName();
        }, array_filter($sender->getServer()->getOnlinePlayers(), function(Player $player) use ($sender) : bool{
            return !($sender instanceof Player) || $sender->canSee($player);
        }));
        sort($playerNames, SORT_STRING);
 
        $sender->sendMessage(KnownTranslationFactory::commands_players_list((string) count($playerNames), (string) $sender->getServer()->getMaxPlayers()));
        $sender->sendMessage(implode(", ", $playerNames));
 
        return true;
    }
}