How do I add a chase player if seen for 10 seconds if not in sight while still returning to navmesh patrol route if player is not seen

@derpypickachu01 thanks I will try to make it work though it is not working now I will see what I can do thanks I will update you today later on what happened thank you

I had some difficulty trying to understand what you were getting at here, but I believe I've come up with a solution to what you're asking to do here. I've added and changed a lot of things to fit the function, and I do admit that it may be a bit messy and rushed.

List of changes:

• Casted a Ray in front of the enemy (this should be visible in the Scene view if Gizmos are turned on) and the ray has a adjustable range to it, meaning it can see for as far as you want it to. The colour of the ray is drawn to be cyan as well.

• Made a boolean variable which turns true if it's chasing the Player, and false if it's not. If it's true, it will ignore its normal patrolling procedure and only focus on chasing the player.

• Added a timer of 10 seconds. The timer will countdown if it's chasing the player as soon as the player is out of the enemy's vision. Once the timer hits 0, the enemy will stop chasing the player and resume to its normal patrol.

• If the enemy is chasing the player it will attempt to go inside of it. Of course, this wouldn't be a problem as the colliders would prevent them both from going inside each other, but this function can be useful to use a OnCollisionEnter() method which would do something as soon as the both of them collide.

  ---

Note: I have NOT worked in 3D Environments and I have NOT tested this code out yet. I've worked on my own things in different environments. However, this doesn't completely mean that this code will not work right off the bat, although there is a possibility it might. I've implemented what I already know and what I've learnt in the time I researched to tackle this problem, so I have some confidence in this.

I'm aware that not testing this is deemed as sloppy, but instead I just imagined an environment similar to what you described and imagined scenarios where each line of code I wrote would work in the scene.

I noticed you have a Transform Array for the transforms of the wall gameobjects, I think it may be useful to add all the children wall gameobjects, if you have a parent for them, in script using a for loop.

Needless to say, this script may or may not create errors but it's a basic idea of what's supposed to happen. If you do find any errors, I believe that you can figure it out or get a better answer than this. Wish you the best of luck on your project!

The Changed Script

 using UnityEngine;
 using UnityEngine.AI;
 using System.Collections;
 using System.Collections.Generic;
 
 
 public class Patrol : MonoBehaviour
 {
 
     public Transform[] points;
     private int destPoint = 0;
     private NavMeshAgent agent;
 
     public float rayDistance = 5f;
     private float timeToChase;
     private bool isChasingPlayer;
     public LayerMask whatToDetect;
     public Transform playerTransform;
 
 
     void Start()
     {
         agent = GetComponent<NavMeshAgent>();
 
         // Disabling auto-braking allows for continuous movement
         // between points (ie, the agent doesn't slow down as it
         // approaches a destination point).
         agent.autoBraking = false;
         timeToChase = 10f;
         isChasingPlayer = false;
 
         if (playerTransform == null)
             Debug.Log("Error. Can't find Player Transform.");
         else
             playerTransform = GameObject.Find("Player").transform;
 
         CheckAndChase();
     }
 
     void CheckAndChase()
     {
         // Returns if no points have been set up
         if (points.Length == 0)
             return;
 
         RaycastHit hitInfo;
         if (Physics.Raycast(transform.position, transform.forward, out hitInfo, rayDistance, whatToDetect))
         {
             if (hitInfo.collider != null)
             {
                 // If the ray detects a collider of a GameObject with the tag "Player"
                 if (hitInfo.collider.CompareTag("Player"))
                 {
                     isChasingPlayer = true;
 
                     // Each time it detects the Player, the timer is reset to 10 seconds. As soon as the Player is out of the
                     //  Enemy's range, the timer begins to count down.
                     timeToChase = 10f;
                 }
                 // If the Player isn't being detected anymore, the enemy will still change the Player.
                 else if (isChasingPlayer == true)
                 {
                     if (timeToChase > 0)
                     {
                         agent.destination = playerTransform.position;
                         timeToChase -= Time.deltaTime;
                     }
                     else
                         isChasingPlayer = false;
                 }
 
                 else
                 {
                         // Set the agent to go to the currently selected destination.
                         agent.destination = points[destPoint].position;
 
                         // Choose the next point in the array as the destination,
                         // cycling to the start if necessary.
                         destPoint = (destPoint + 1) % points.Length;
                 }
             }
         }
     }
 
     void OnDrawGizmosSelected()
     {
         Debug.DrawLine(transform.position, transform.forward * rayDistance, Color.cyan);
     }
 
 
     void Update()
     {
         // Choose the next destination point when the agent gets
         // close to the current one.
         if (!agent.pathPending && ((agent.remainingDistance < 0.5f && isChasingPlayer == false) || isChasingPlayer == true))
             CheckAndChase();
     }
 
 }