How to add movement to an Entity?

I have already created the entity:

PHP:

public function spawnBot($x, $y, $z, $world, $nametag) {
        $chunk = $world->getChunk($x>>4, $z>>4);
        $nbt = $this->getNBT($x, $y, $z, 0, 0);
        $bot = Entity::createEntity("Zombie", $chunk, $nbt);
        $bot->setNameTag($nametag);
        $bot->spawnToAll();
        $this->getLogger()->critical("PocketBot has been spawned");
    }
 

But I have no idea how to add movement to it.

Also, how do I get a specific entity in a world? My current code:

PHP:

    public function getBot() {
        $level = $this->getBotLevel();
        foreach($level->getEntities() as $entity) {
            if($entity->getX() == $this->getBotX() && $entity->getY() == $this->getBotY() && $entity->getZ() == $this->getBotZ()) {
                return $entity;
                }
        }
    }

But it doesn't work.

Try, teleporting it back and then again and again. Or you can create a movement pattern and create a task that's teleport the Zombie to the pattern for teleport use $bot->teleport // I'm trying the same thing. I;ll post an update when i figue it out.

Teleporting is one of the worst ways to make a mob walk/move. It looks glitchy.
There is a way to make the mob walk, but I'm not entirely sure how to do i t.

How about this??? https://github.com/milk0417/EntityManager , It has an API idk.. Anyway take a look at it alright.

SetEntityMotionPacket

Thanks, but I'm still having trouble actually getting the entity. My current code doesn't return the entity. And addEntityMotion() & addEntityMovement() require and entity ID. How do I give my mob an entity ID or get its current one?

PHP:

$bot->getId()

returns its entity ID.

When you have its ID (look above), you can use $level->getEntity($id);

Thanks I'll test this later when I can.