Solved Player is in radius of a zombie

I am making a guards plugin but got into the error. How do i get if a player is in the radius of the mob?


Previous Attempt

PHP:

public function onKill(EntityDamageEvent $ev){

           $player = $ev->getEntity();
           $boss = $ev->getEntity()->getNameTag() == "§3Guard §8<§a" . $entity->getHealth() . "/" . $entity->getMaxHealth() . "§8>";

  if($ev instanceof EntityDamageByEntityEvent && $player instanceof Player){

  $fighter = $ev->getDamager();

   if($player->distanceSquared($boss) < 64 && $fighter->distanceSquared($boss) < 64){

//Code

 

You are comparing Vector3 with string

 

Anyone help

 

Few things wrong with your code:

1. You were comparing a Vector3 against a string
2. You were assuming that the event had a damager
3. You were checking the entities nametag

Fixes:

1. You can check the distance (squared) from a vector with Position::distance(Vector)
2. EntityDamageEvent has a number of causes, it isn't always an EntityDamageByEntityEvent
3. I suggest saving the bosses entity ID and checking that against the entities ID. Using the nametag isn't the best choice.

PHP:

public function onDamage(EntityDamageEvent $ev) {
    if(!$ev instanceof EntityDamageByEntityEvent) {
        return;
    }

    $entity = $ev->getEntity();
    $damager = $ev->getDamager();
    if(!$damager instanceof Player or $entity->getNameTag() !== "§3Guard §8<§a" . $entity->getHealth() . "/" . $entity->getMaxHealth() . "§8>") {
        return;
    }

    $vector = new Vector3($damager->getX(), $damager->getY(), $damager->getZ());
    if($entity->getPosition()->distance($vector) <= 64) {
        //code
    }
}

 

To be honest, after I saw him compare a vector and a string I wasn't entirely sure he know what he was doing squaring.