NPC won't move after adding chase code.

Questions & Answers
1

Hey there! I’m following a Pluralsight tutorial on Unity Fundamentals. I’m currently working on the NPC. The NPC moves fine from waypoint to waypoint until I add the code to chase the player, it won’t move at all. Below is my NPCController script.

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

public class NPCController : MonoBehaviour
{
    public float patrolTime = 10f;
    public float aggroRange = 10f;
    public Transform[] waypoints;

    private int index;
    private float speed, agentSpeed;
    private Transform player;

    //private Animator anim;
    private NavMeshAgent agent;

    private void Awake()
    {
        //anim = GetComponent<Animator>();
        agent = GetComponent<NavMeshAgent>();
        if (agent != null) { agentSpeed = agent.speed; }
        player = GameObject.FindGameObjectWithTag("Player").transform;
        index = Random.Range(0, waypoints.Length);

        InvokeRepeating("Tick", 0, 0.5f);

        if (waypoints.Length > 0)
        {
            InvokeRepeating("Patrol", 0, patrolTime);
        }
    }

    void Patrol()
    {
        index = index == waypoints.Length - 1 ? 0 : index + 1;
    }

    void Tick()
    {
        agent.destination = waypoints[index].position;
        agent.speed = agentSpeed / 2;

        if (player != null && Vector3.Distance(transform.position, player.position) < aggroRange)
        {
            agent.destination = player.position;
            agent.speed = agentSpeed;
        }
    }
}

NPCController.cs

2

I’m going to try out your code and see what happens. After that I will update you.
*Update: Your code works as intended for me. Make sure you tagged something as Player. It won’t move until you tag something as Player.