Entity follows player

I use this:

PHP:

$entity = $player->getLevel()->getEntity($this->pet[$player->getName()]);

$speed = 1;
$x = $player->x;
$y = $player->y;
$z = $player->z;
if($x ** 2 + $z ** 2 < 0.7){
$motionX = 0;
$motionZ = 0;
}else{
$diff = abs($x) + abs($z);
$motionX = $speed * 0.15 * ($x / $diff);
$motionZ = $speed * 0.15 * ($z / $diff);
}
$entity->move($motionX, $y, $motionZ);

$entity->level->addEntityMotion($entity->chunk->getX(),$entity->chunk->getZ(),$entity->getId(),$motionX,0,$motionZ);

$entity->updateMovement();

 

Don't call updateMovement

 

That helped. And I removed move (). But now the entity isn't following me

 

How can I make the entity follow me?

 

It should work. What code do you have now?

 

PHP:

$entity = $player->getLevel()->getEntity($this->ID);

if($entity != NULL) {

$speed = 1;
$x = $player->x;
$y = $player->y;
$z = $player->z;
if($x ** 2 + $z ** 2 < 0.7){
$motionX = 0;
$motionZ = 0;
}else{
$diff = abs($x) + abs($z);
$motionX = $speed * 0.15 * ($x / $diff);
$motionZ = $speed * 0.15 * ($z / $diff);
}
$entity->level->addEntityMotion($x,$z,$entity->getId(),$motionX,0,$motionZ);

 

What I wrong with this? The entity isn't following me