// Cop.php
public function spawnTo(Player $p) {
        $uuid = $this->getUniqueId();
        $pk = new AddPlayerPacket();
        $pk->eid = $this->getId();
        $pk->uuid = $uuid;
        $pk->x = $this->x;
        $pk->y = $this->y;
        $pk->z = $this->z;
        $pk->speedX = 0;
        $pk->speedY = 0;
        $pk->speedZ = 0;
        $pk->yaw = 0;
        $pk->pitch = 0;
        $this->setNameTag($this->namedtag->displayname);
        $this->setNameTagAlwaysVisible(true);
        $this->setNameTagVisible(true);
        $pk->metadata = $this->dataProperties;
        $pk->metadata[self::DATA_NAMETAG] = [self::DATA_TYPE_STRING];
        $p->dataPacket($pk);
        $player->server->removePlayerListData($uuid, [$p]);
        Server::getInstance()->removePlayerListData($this->getUniqueId(), [$p]);
        $this->saveNBT();
        parent::spawnTo($p);
    }

// Utils.php

public static function addCop($player, $name = null) : CompoundTag {
        $nbt = new CompoundTag;
        $name = TF::DARK_RED . TF::BOLD . 'SECURITY ' . TF::RESET . TF::AQUA . ($name ?? CopData::randomName());
        $nbt->Pos = new ListTag("Pos", [
            new DoubleTag("", $player->x),
            new DoubleTag("", $player->y),
            new DoubleTag("", $player->z)
        ]);
        $nbt->Rotation = new ListTag("Rotation", [
            new FloatTag("", $player->yaw),
            new FloatTag("", $player->pitch)
        ]);
        $nbt->Skin = new CompoundTag("Skin", ["Data" => new StringTag("Data", $player->getSkinData()), "Name" => new StringTag("Name", $player->getSkinId())]);
        $nbt->Health = new ShortTag("Health", 20);
        $nbt->Invulnerable = new ByteTag("Invulnerable", 1);
        $nbt->CustomName = new StringTag("CustomName", $name);
        $nbt->displayname = $name;
        $level = $player->getLevel();
        $entity = Entity::createEntity("Cop", $level, $nbt);
        $entity->spawnToAll();
        $entity->saveNBT();
        PrisonCore::$npcs["Cop"][] = $nbt;
        return $nbt;
    }