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This is part of the world protect v.1.1.5 plug-in. I want this part to not be buged when other players leave the game in the world that we are limiting.

 

<?php
//= cmd:max,Sub_Commands
//: Limits the number of players per world
//> usage : /wp _[world]_ max _[value]_
//> - /wp _[world]_ **max**
//: - shows the current limit
//> - /wp _[world]_ **max** _value_
//: - Sets limit value to _value_.
//> - /wp _[world]_ **max** **0**
//: - Removes world limits
//:
//= features
//: * Limit the number of players in a world
namespace aliuly\worldprotect;

use pocketmine\plugin\PluginBase as Plugin;
use pocketmine\event\Listener;
use pocketmine\command\CommandSender;
use pocketmine\command\Command;
use pocketmine\event\entity\EntityTeleportEvent;
use pocketmine\Player;
use aliuly\worldprotect\common\mc;
use pocketmine\level\Level;

class MaxPlayerMgr extends BaseWp implements Listener {
public function __construct(Plugin $plugin) {
parent::__construct($plugin);
$this->owner->getServer()->getPluginManager()->registerEvents($this, $this->owner);
$this->enableSCmd("max",["usage" => mc::_("[value]"),
"help" => mc::_("Limits number of players\n\tin a world to [value]\n\tuse 0 or -1 to remove limits"),
"permission" => "wp.cmd.limit",
"aliases" => ["limit"]]);
}
public function getMaxPlayers($world) {
if ($world instanceof Level) $world = $world->getName();
return $this->getCfg($world,null);
}
public function onSCommand(CommandSender $c,Command $cc,$scmd,$world,array $args) {
if ($scmd != "max") return false;
if (count($args) == 0) {
$count = $this->owner->getCfg($world, "max-players", null);
if ($count == null) {
$c->sendMessage(mc::_("[WP] Max players in %1% is un-limited",$world));
} else {
$c->sendMessage(mc::_("[WP] Players allowed in %1%: %2%", $world, $count));
}
return true;
}
if (count($args) != 1) return false;
$count = intval($args[0]);
if ($count <= 0) {
$this->owner->unsetCfg($world,"max-players");
$this->owner->getServer()->broadcastMessage(mc::_("[WP] Player limit in %1% removed",$world));
} else {
$this->owner->setCfg($world,"max-players",$count);
$this->owner->getServer()->broadcastMessage(mc::_("[WP] Player limit for %1% set to %2%",$world, $count));
}
return true;
}

public function onTeleport(EntityTeleportEvent $ev){
if ($ev->isCancelled()) return;
$et = $ev->getEntity();
if (!($et instanceof Player)) return;

$from = $ev->getFrom()->getLevel();
$to = $ev->getTo()->getLevel();
if (!$from) {
// THIS SHOULDN'T HAPPEN!
return;
}
if (!$to) {
// Somebody did not initialize the level properly!
// But we return because they do not intent to change worlds
return;
}

$from = $from->getName();
$to = $to->getName();

if ($from == $to) return;
$max = $this->getCfg($to,0);
if ($max == 0) return;
$np = count($this->owner->getServer()->getLevelByName($to)->getPlayers());
if($np >= $max) {
$ev->setCancelled();
$et->sendMessage(mc::_("Unable to teleport to %1%\nWorld is full",$to));
$t

his->owner->getLogger()->notice(mc::_("%1% is FULL",$to));
}
}
}