How do I make this ai stop in front of target?

Questions & Answers
1

I am making an ai that attacks enemies in my scene. So far it is able to target 1 enemy and fire projectiles at it. but it runs into the enemy and pushes it back. What I want it to do is stop moving towards it, when it is within a certain distance from the enemy.

Here is my script:

#pragma strict

var target : Transform;
var moveSpeed = 20;
var rotationSpeed = 5;
var myTransform : Transform;
var turret : Transform;
var damp = 1.0;
var bullet : Transform;
var bulletSpawn : Transform;
var timer = 0.0;
 
function Awake() {
        myTransform = transform;
}
 
function Start() {
 
        target = GameObject.FindWithTag("Enemy").transform;
}
 
function Update () {
   
    myTransform.rotation = Quaternion.Slerp(myTransform.rotation,
    Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed*Time.deltaTime);
    myTransform.position += myTransform.forward * moveSpeed * Time.deltaTime;
}

function OnTriggerStay (objectTriggered : Collider)
{
	timer += Time.deltaTime;
	if(objectTriggered.transform == target)
	{
	var rotate = Quaternion.LookRotation(target.position - turret.position);
	turret.rotation = Quaternion.Slerp(turret.rotation, rotate, Time.deltaTime * damp);
	
	if(timer>8.0)
	{
	Instantiate(bullet, bulletSpawn.position, bulletSpawn.rotation);
	timer = 0.0;
	}
	}
	
}
2

you can do one thing, First calculate your player position and then enemy and calculate distance between both, When distance will be less, Whatever you want on that time you can stop player/enemy.