Entity Follow Player and Attack Them?

How would i make an entity follow/attack a player? I have to spawning part down.

 

halp pls

 

Movement (not sure):

PHP:

$entity->setMotion($player->subtract($entity)->normalize());


 

https://forums.pmmp.io/threads/move-entity-to-target-then-attack-the-target.790/

 

nah doesnt work

 

help

 

You can use Zombie AI:
https://github.com/iTXTech/Genisys/blob/master/src/pocketmine/entity/Zombie.php#L139

 

Use the search bar, there are a lot of similar threads.