Make AI object with Nav Mesh work with script to stop following player?

Questions & Answers
1

Hello,

I am relatively new to coding and am trying to make this AI script work with navmesh so that an object ‘Enemy’ does the following;

    1. looks at the player within a certain distance
    1. Moves towards the player within a certain
    1. once it is doing 2 and reaches 1.5 away from the player it stops
    1. it continuously follows the player until the player gets a certain distance away from it
    1. it moves around objects

I did have 1 to 4 working properly but since ive added the Nav Mesh part to my script the Enemy completes 1 and 2 and 5 but not 3 or 4, it just follows the player continuously. Here is my script for the enemy object, the ‘function chase’ is the part I changed in order for the Nav Mesh thing to work. Note the lines I commented out:

var Distance;
var Target : Transform;
var lookAtDistance = 25.0;
var chaseRange = 15.0;
var attackRange = 1.5;
var moveSpeed = 5.0;
var Damping = 6.0;
var attackRepeatTime = 1;

var TheDamage = 40;

private var attackTime : float;

var controller : CharacterController;
var gravity : float = 20.0;
private var MoveDirection : Vector3 = Vector3.zero;

function Start ()
{
	attackTime = Time.time;
}

function Update ()
{
	Distance = Vector3.Distance(Target.position, transform.position);
	
	if (Distance < lookAtDistance)
	{
		lookAt();
	}
	
	if (Distance > lookAtDistance)
	{
		renderer.material.color = Color.green;
	}
	
	if (Distance < attackRange)
	{
		attack();
	}
	else if (Distance < chaseRange)
	{
		chase ();
	}
}

function lookAt ()
{
	renderer.material.color = Color.yellow;
	var rotation = Quaternion.LookRotation(Target.position - transform.position);
	transform.rotation = Quaternion.Slerp(transform.rotation, rotation, Time.deltaTime * Damping);
}

function chase ()
{
	renderer.material.color = Color.red;
	
	//moveDirection = transform.forward;
	//moveDirection *= moveSpeed;
	GetComponent(NavMeshAgent).destination = Target.position;
//	moveDirection.y -= gravity * Time.deltaTime;
	//controller.Move(moveDirection * Time.deltaTime);
}

function attack ()
{
	if (Time.time > attackTime)
	{
		Target.SendMessage("ApplyDamage", TheDamage);
		Debug.Log("The Enemy Has Attacked");
		attackTime = Time.time + attackRepeatTime;
	}
}

function ApplyDamage ()
{
	chaseRange += 30;
	moveSpeed += 2;
	lookAtDistance += 40;
}

If there is any lack of clarity feel free to ask, thanks.

2

var target : Transform; //drag player here in inspector
var Distance;
var chaseDistance : float = 10.0;
var closeStopDistance : float = 2.0;

var agent: NavMeshAgent; //drag navmesh enemy here in inspector

function Start(){

}


function Update()
{

	Distance = Vector3.Distance(target.position, transform.position);
	
	if (Distance < chaseDistance){
		
		agent.SetDestination(target.position);
	}
	if (Distance < closeStopDistance){
		agent.Stop(false);
	}

	//etc... just fill in all the distance based actions...	
	// if (enemyAgro = 10 && Distance < 3.0) then attackfunction() etc.		
					

}