EntityZ

<?php

namespace Tungst_geo;

use pocketmine\plugin\PluginBase;
use pocketmine\Player;
use pocketmine\Server;
use pocketmine\event\Listener;
use pocketmine\command\Command;
use pocketmine\command\CommandSender;
use pocketmine\event\Event;
use pocketmine\event\player\PlayerJoinEvent;

use pocketmine\entity\Skin;
use pocketmine\utils\TextFormat as C;


use pocketmine\entity\Entity;
use pocketmine\math\Vector3;
use pocketmine\entity\Human;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\nbt\tag\StringTag;
use pocketmine\nbt\tag\ListTag;
use pocketmine\nbt\tag\NamedTag;
use pocketmine\nbt\tag\DoubleTag;
use pocketmine\nbt\tag\ShortTag;
use pocketmine\nbt\ReaderTracker;
use pocketmine\nbt\NBTStream;

use tungst_geo\EntityZ;

class Main extends PluginBase implements Listener {


    public function onEnable(){
        $this->getLogger()->info("How to play enable");
        $this->getServer()->getPluginManager()->registerEvents($this, $this);
        Entity::registerEntity(EntityZ::class, true,["EnityZ",EntityZ::class]);

    }


    public function onCommand(CommandSender $sender, Command $command, String $label, array $args) : bool {
        if($sender instanceof Player){
        switch(strtolower($command->getName())){
            case "a":
            $this->skin($sender);
            break;
            case "npc":
            $this->createnpc($sender);

            break;
        }
        }else{
        };
        return true;
    }
   public function createnpc($sen){//$sen is sender from onCommand
        $skin = $sen->getSkin();
        $path = $this->getDataFolder() . "poop.png";
        $img = @imagecreatefrompng($path);
        $skinbytes = "";
        $s = (int)@getimagesize($path)[1];
        for($y = 0; $y < $s; $y++){
            for($x = 0; $x < 64; $x++){
                $colorat = @imagecolorat($img, $x, $y);
                $a = ((~((int)($colorat >> 24))) << 1) & 0xff;
                $r = ($colorat >> 16) & 0xff;
                $g = ($colorat >> 8) & 0xff;
                $b = $colorat & 0xff;
                $skinbytes .= chr($r) . chr($g) . chr($b) . chr($a);
            }
        }
        @imagedestroy($img);

       $player = $sen;
       $nbt = Entity::createBaseNBT($sen, null, $sen->getYaw(), $sen->getPitch());
       $skinTag = $sen->namedtag->getCompoundTag("Skin");
       assert($skinTag !== null);
       $nbt->setTag(clone $skinTag);
       $npc = Entity::createEntity("EntityZ",$sen->getLevel(),$nbt);

       $npc->setSkin(new Skin("nothing", $skinbytes, "", "geometry.poop", file_get_contents($this->getDataFolder() . "poop.json")));
       $npc->sendSkin();
       $npc->setScale(0.5);
   $npc->spawnToAll();
   }



   public function skin($player){
        $skin = $player->getSkin();
        $path = $this->getDataFolder() . "texture.png";
        $img = @imagecreatefrompng($path);
        $skinbytes = "";
        $s = (int)@getimagesize($path)[1];
        for($y = 0; $y < $s; $y++){
            for($x = 0; $x < 64; $x++){
                $colorat = @imagecolorat($img, $x, $y);
                $a = ((~((int)($colorat >> 24))) << 1) & 0xff;
                $r = ($colorat >> 16) & 0xff;
                $g = ($colorat >> 8) & 0xff;
                $b = $colorat & 0xff;
                $skinbytes .= chr($r) . chr($g) . chr($b) . chr($a);
            }
        }
        @imagedestroy($img);
        $player->setSkin(new Skin($skin->getSkinId(), $skin->getSkinData(),@imagecreatefrompng("texture.png"), $skin->getGeometryName(), $skin->getGeometryData()));
        $player->sendSkin();
        //$player->sendMessage("ok");
    }

}

<?php

namespace Tungst_geo;

use pocketmine\entity\Human;
use pocketmine\level\Level;
use pocketmine\nbt\tag\CompoundTag;
use pocketmine\Server;

use pocketmine\network\mcpe\protocol\EntityEventPacket;
class EntityZ extends Human{


    public function entityBaseTick(int $tickDiff = 1) : bool{
        print("Hi");


        return parent::entityBaseTick($tickDiff);
    }
    public function getName(): string{
                return "EntityZ";
    }

}