How to send bossbar these days

Code:

$z->getId();

just replace it with id of zombie entity.
it's defined under $z variable

 

Code:

[16:41:16] [Server thread/CRITICAL]: Unhandled exception executing command 'testc' in testc: Argument 1 passed to pocketmine\utils\BinaryStream::putUnsignedVarInt() must be of the type integer, null given, called in phar://C:/Users/arjxy/Desktop/pocketmine/PocketMine-MP.phar/src/pocketmine/network/mcpe/protocol/BossEventPacket.php on line 115
[16:41:16] [Server thread/CRITICAL]: TypeError: "Argument 1 passed to pocketmine\utils\BinaryStream::putUnsignedVarInt() must be of the type integer, null given, called in phar://C:/Users/arjxy/Desktop/pocketmine/PocketMine-MP.phar/src/pocketmine/network/mcpe/protocol/BossEventPacket.php on line 115" (EXCEPTION) in "vendor/pocketmine/binaryutils/src/BinaryStream" at line 230

PHP:

$pk = new AddEntityPacket();
        $pk->type = Entity::ZOMBIE;
        $pk->entityRuntimeId = Entity::$entityCount++;
        $pk->position = new Vector3();
        $pk->metadata[Entity::DATA_NAMETAG] = [Entity::DATA_TYPE_STRING, "Title"];
        $sender->dataPacket($pk);

        $pbk = new BossEventPacket();
        $pbk->bossEid = (int)32;
        $pbk->eventType = BossEventPacket::TYPE_SHOW;
        $pbk->healthPercent = 1;
$pbk->playerEid = $sender->getId();
        $pbk->title = "hi";
        $sender->dataPacket($pbk);

 

anybody

 

PHP:

$id = Entity::$entityCount++;
$pk = new AddEntityPacket();
$pk->type = Entity::ARROW;
$pk->entityRuntimeId = $id;
$pk->position = $player->asVector3();
$pk->metadata = [Entity::DATA_NAMETAG => [Entity::DATA_TYPE_STRING, "text"]];
$player->dataPacket($pk);

$pk = new BossEventPacket();
$pk->bossEid = $id;
$pk->playerEid = $player->getId();
$pk->eventType = BossEventPacket::TYPE_SHOW;
$pk->healthPercent = 100;
$pk->unknownShort = 1;
$pk->color = 1;
$pk->overlay = 1;
$pk->title = "text";
$player->dataPacket($pk);


 

i have that in repeating task. and the bossbar created 3 bossbars

 

that spawns arrows wth

 

1. Why do you use a repeating task for sending the boss bar? Explain what you're trying to do and we will be able to help.
2. You can replace

PHP:

Entity::ARROW

to whatever you want, It was an example.

 

I have a live timer in bossbar, it won't update if i just send it once, rigght

 

How can I change the color of the bossbar? I tried to change the $ this->color but it was not.

 

you cannot change the color of it in MC:Bedrock. The color variable does nothing.