Maps with custom images PocketMine

CustomMapImage.php

<?php

namespace Picture;

use pocketmine\item\Item;
use pocketmine\event\Listener;
use pocketmine\{Server, Player};
use pocketmine\plugin\PluginBase;
use pocketmine\event\player\PlayerJoinEvent;
use pocketmine\utils\{Color, TextFormat as T};
use pocketmine\nbt\tag\{CompoundTag, StringTag};
use pocketmine\network\mcpe\protocol\ClientboundMapItemDataPacket;

class Main extends PluginBase implements Listener{
	
	public function onEnable(){
	$this->getServer()->getPluginManager()->registerEvents($this, $this);
	$this->getServer()->getLogger()->info("enabled");
	@mkdir($this->getDataFolder());
	@mkdir($this->getDataFolder()."Image/");
	}
	
	public function onJoin(PlayerJoinEvent $event){
	$player = $event->getPlayer();
	$folder = $this->getDataFolder()."Image/";
	$colores = [];
	$imagen = @imagecreatefrompng($folder."BEcraft.png");
	if($imagen === false){
	$player->sendMessage(T::RED."Error with image!");
	return;
	}
	$r = 0;
	$g = 0;
	$b = 0;
	$ancho = 128;
	$altura = 128;
	$imagen = imagescale($imagen, $ancho, $altura, IMG_NEAREST_NEIGHBOUR);
	imagepng($imagen, $folder."BEcraft-new.png");
	for($y = 0; $y < $altura; ++$y){
	for($x = 0; $x < $ancho; ++$x){
	$rgb = imagecolorat($imagen, $x, $y);
	$color = imagecolorsforindex($imagen, $rgb);
	$r = $color["red"];
	$g = $color["green"];
	$b = $color["blue"];
	$colores[$y][$x] = new Color($r, $g, $b, 0xff);
	}
	}
	$map = Item::get(Item::FILLED_MAP);
	$map->setCount(1);
	$key = 18293883;
	$tag = new CompoundTag("", []);
	$tag->map_uuid = new StringTag("map_uuid", $key);
	$map->setCompoundTag($tag);
	$player->getInventory()->setItem(6, $map);
	$pk = new ClientboundMapItemDataPacket();
	$pk->mapId = $key;
	$pk->type = ClientboundMapItemDataPacket::BITFLAG_TEXTURE_UPDATE;
	$pk->height = 128;
	$pk->width = 128;
	$pk->scale = 1;
	$pk->colors = $colores;
	$player->dataPacket($pk);
	$player->sendMessage(T::GREEN."Image completed!");
	return true;
	}
	
}