NetworkBroadcastUtils.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\network\mcpe;
 
use pocketmine\network\mcpe\protocol\ClientboundPacket;
use pocketmine\player\Player;
use pocketmine\timings\Timings;
use function count;
use function spl_object_id;
 
final class NetworkBroadcastUtils{
 
    private function __construct(){
        //NOOP
    }
 
    public static function broadcastPackets(array $recipients, array $packets) : bool{
        if(count($packets) === 0){
            throw new \InvalidArgumentException("Cannot broadcast empty list of packets");
        }
 
        return Timings::$broadcastPackets->time(function() use ($recipients, $packets) : bool{
            $sessions = [];
            foreach($recipients as $player){
                if($player->isConnected()){
                    $sessions[] = $player->getNetworkSession();
                }
            }
            if(count($sessions) === 0){
                return false;
            }
 
            $uniqueBroadcasters = [];
            $broadcasterTargets = [];
            foreach($sessions as $recipient){
                $broadcaster = $recipient->getBroadcaster();
                $uniqueBroadcasters[spl_object_id($broadcaster)] = $broadcaster;
                $broadcasterTargets[spl_object_id($broadcaster)][spl_object_id($recipient)] = $recipient;
            }
            foreach($uniqueBroadcasters as $broadcaster){
                $broadcaster->broadcastPackets($broadcasterTargets[spl_object_id($broadcaster)], $packets);
            }
 
            return true;
        });
    }
 
    public static function broadcastEntityEvent(array $recipients, \Closure $callback) : void{
        $uniqueBroadcasters = [];
        $broadcasterTargets = [];
 
        foreach($recipients as $recipient){
            $session = $recipient->getNetworkSession();
            $broadcaster = $session->getEntityEventBroadcaster();
            $uniqueBroadcasters[spl_object_id($broadcaster)] = $broadcaster;
            $broadcasterTargets[spl_object_id($broadcaster)][spl_object_id($session)] = $session;
        }
 
        foreach($uniqueBroadcasters as $k => $broadcaster){
            $callback($broadcaster, $broadcasterTargets[$k]);
        }
    }
}