setMotion and setRotation

Hello, I have been trying to make my boss move smoothly for the last 10 hours and i've finally decided to ask for some help. I am trying to get my boss to sprint/walk to a viewer in 5 blocks range, attack the player, and also look at the player.(I have the range down and the attack). I've heard that i need to use Sin/Cos/Tan but i dont know how to apply that to my php coding.

PHP:


foreach($this->entity->getViewers() as $viewer) {
    if ($viewer instanceof Player) {
        if ($viewer->distance($this->entity->getPosition()) < 5) {
            $attackdamage = mt_rand(1, 20);
            $ev = new EntityDamageByEntityEvent($this->entity, $viewer, EntityDamageEvent::CAUSE_ENTITY_ATTACK, $attackdamage);
            $viewer->attack($ev);

        }
    }
}



Thank you for your time.

 

Doesn't seem like that code will move the entity. Also, try focusing more on what you can do, and ask for help on new things.

 

I'm saying I need help with moving the entity. I don't really know where to start.

 

I recommend taking a look at how the AI driven mobs from PEX or VanillaEntityAI function. Can give you a hint probs.

 

I have and I understand like 1% of what they are doing. Ill try again i guess

 

For very simple moving you might want to check out https://github.com/diamond-gold/MiniBosses/blob/master/src/MiniBosses/Boss.php#L238

 

ok i was reading it and this part started to mess with my brain.

PHP:


if($x ** 2 + $z ** 2 < 0.7){
$this->motion->x = 0;
$this->motion->z = 0;
} else{



Can someone explain?

 

It prevents the entity from having motion that is too small

 

I understand slightly more now. I decided to open Notepad and start writing down what everything is doing. This is what I have so far

Code:

Players X = 30
Players Y = 38
Players Z = 82

Boss X = 25
Boss Y = 40
Boss Z = 80

PX Away From BX = PX - BX (30-25)[5] ($x)
PY Away From BY = PY - BY (38-40)[-2] ($y)
PZ Away From BZ = PZ - BZ (82-80)[2] ($z)

if $x * $x + $z * $z less than 0.7 then dont move

else the amount of blocks away is absoulte value of $x + $y ($diff)

$diff = 7


move the boss's x at 1 * 0.15 * ($x / $diff) [Motion: 0.10] {Player Is Too Close But Not Close Enough For Boss Not To Move}

Am I Basicallly Correct So Far?