Improved Wolf AI with navmesh

WolfAI.cs

using System.Collections;
using System.Collections.Generic;
using UnityEngine;


public class NavWolfAI : MonoBehaviour {

	// Public 
	public Transform player;
	public float speed;
	public int damage;
	// Wander 
	public float wanderRadius;
    public float wanderTimer;
	//Detection 
	public float alertDist;
	public float attackDist;
	// Private 
	private Animator state;
	private Vector3 direction;
	private Transform target;
	private UnityEngine.NavMeshAgent agent;
	private float timer;
	private float distance;

	void OnEnable () {
        agent = GetComponent<UnityEngine.NavMeshAgent> ();
        timer = wanderTimer;
    }
	// Use this for initialization
	void Start () {
		state = GetComponent<Animator>();
		distance = Vector3.Distance(player.position, transform.position);
	}
	
	// Update is called once per frame
	void Update () {
		distance = Vector3.Distance(player.position, transform.position);
		
		// Alert
		if(distance < alertDist && distance > attackDist){
			print("Wolf sees player");
			state.SetBool("isFollowing",true);
			state.SetBool("isWandering",false);
			state.SetBool("isAttacking",false);
			speed = speed + 2;
			transform.LookAt(player);
			transform.Translate(Vector3.forward*speed*Time.deltaTime);
		}
		//Attacking
		else if(distance <=  alertDist){
			print("Wolf is following!");
			direction = player.position - transform.position;
			direction.y = 0;

			//transform.rotation = Quaternion.Slerp(transform.rotation, Quaternion.LookRotation(direction),0.09f*Time.deltaTime);

			//transform.Translate(Vector3.forward*speed*Time.deltaTime);
			//transform.Translate(0,0,speed*Time.deltaTime);
			

			state.SetBool("isFollowing",false);
			state.SetBool("isAttacking",true);
			state.SetBool("isWandering",false);
			
			speed = speed - 10;
			
			transform.LookAt(player);
			transform.Translate(Vector3.forward*speed*Time.deltaTime);

			if(direction.magnitude <= attackDist){
				print("wolf is attacking!");
				state.SetBool("isFollowing",false);
				state.SetBool("isAttacking",true);
				state.SetBool("isWandering",false);
				// var hit = player.gameObject;
				// var health = hit.GetComponent<playerHealth>();
		
				// if(health != null){
				// health.TakeDamage(damage);
				// }	
			}
		}
		
		//Wandering
		else if(distance > alertDist){
			 timer += Time.deltaTime;

			 	state.SetBool("isFollowing",false);
				state.SetBool("isAttacking",false);
				state.SetBool("isWandering",true);

			if (timer >= wanderTimer) {
			Vector3 newPos = RandomNavSphere(transform.position, wanderRadius, -1);
			agent.SetDestination(newPos);
			timer = 0;
			}


		}

		
	}

	public static Vector3 RandomNavSphere(Vector3 origin, float dist, int layermask) {
        Vector3 randDirection = Random.insideUnitSphere * dist;
 
        randDirection += origin;
 
        UnityEngine.NavMeshHit navHit;
 
        UnityEngine.NavMesh.SamplePosition (randDirection, out navHit, dist, layermask);
 
        return navHit.position;
    }
}

using UnityEngine;
using System.Collections;

public class NavWander : MonoBehaviour {

public float wanderRadius;
public float wanderTimer;

private Transform target;
private UnityEngine.NavMeshAgent agent;
private float timer;

public Transform enemy;
public Transform chickenPen;

public int points;
public bool isWandering = true;

// Use this for initialization
void OnEnable () {
    agent = GetComponent<UnityEngine.NavMeshAgent> ();
    timer = wanderTimer;
}

// Update is called once per frame
void Update () {
    timer += Time.deltaTime;

    if (timer >= wanderTimer) {
        Vector3 newPos = RandomNavSphere(transform.position, wanderRadius, -1);
        agent.SetDestination(newPos);
        timer = 0;
    }
}

public static Vector3 RandomNavSphere(Vector3 origin, float dist, int layermask) {
    Vector3 randDirection = Random.insideUnitSphere * dist;

    randDirection += origin;

    UnityEngine.NavMeshHit navHit;

    UnityEngine.NavMesh.SamplePosition (randDirection, out navHit, dist, layermask);

    return navHit.position;
}
// Chicken Interactions
// void OnTriggerStay(Collider other)
// {
// 	if(other.)
// }

}