public function onOpen(Player $who)
{
parent::onOpen($who);
if (count($this->getViewers()) === 1) {
$pk = new TileEventPacket();
$pk->x = $this->main->getFakeTile()->x;
$pk->y = $this->main->getFakeTile()->y;
$pk->z = $this->main->getFakeTile()->z;
$pk->case1 = 1;
$pk->case2 = 2;
if (($level = $this->main->getFakeTile()->getLevel()) instanceof Level) {
Server::broadcastPacket($level->getChunkPlayers($this->main->getFakeTile()->x >> 4, $this->main->getFakeTile()->z >> 4), $pk->setChannel(Network::CHANNEL_WORLD_EVENTS));
}
}
}
