Ytukyg

Enemy character not moving to the 3rd waypoint. After moving to waypoint 2 it just stops and the idle animation plays. The character has a NavMeshAgent on it and it looks like the destination reached event is not being triggered when he gets to the waypoint. If anyone has had a situation like this before I would appreciate any information possible. I have been trying to figure out whats wrong for a few hours now and am starting to think it might not be any of the scripts.

here is the waypoint controller

using UnityEngine;

using UnityEngine.AI; 



public class WaypointController : MonoBehaviour {



    Waypoints waypoints;

    public Transform target; 

    //NavMeshPath path; 

    int currentWaypointIndex = -1;

    //private NavMeshAgent agent;

    //EnemyCharacter enemy; 



    public event System.Action<Waypoints> OnWaypointChanged;



    // Use this for initialization

    void Awake () {



        waypoints = GetWaypoints();



    }



    public void SetNextWaypoint() {



        if (currentWaypointIndex != waypoints.Length)

            currentWaypointIndex++;



        if (currentWaypointIndex == waypoints.Length)

            currentWaypointIndex = 0;



        if (OnWaypointChanged != null)

            OnWaypointChanged(waypoints[currentWaypointIndex]);

        //Debug.Log("OnWaypointChanged == null: " + (OnWaypointChanged == null));

        //Debug.Log("OnWaypointChanged != null: " + (OnWaypointChanged != null));



    }

    Waypoints GetWaypoints()

    {

        return GetComponentsInChildren<Waypoints>();



    }

    private void OnDrawGizmos()

    {

        Gizmos.color = Color.red;



        Vector3 previousWaypoint = Vector3.zero;

        foreach (var waypoint in GetWaypoints())

        { 

            Vector3 waypointPosition = waypoint.transform.position; 

            Gizmos.DrawWireSphere(waypointPosition, .2f);

            if (previousWaypoint != Vector3.zero)

                Gizmos.DrawLine(previousWaypoint, waypointPosition);

            previousWaypoint = waypointPosition;

        }

    }

}

Here is the EnemyPatrolPoints script

using UnityEngine;



[RequireComponent(typeof(AI_PathFinder))]

public class EnemyPatrolPoints : MonoBehaviour {



    [SerializeField]

    WaypointController waypointController;



    [SerializeField]

    float waitTimeMin;



    [SerializeField]

    float waitTimeMax;



    AI_PathFinder pathfinder;



    private void Start()

    {

        waypointController.SetNextWaypoint(); 

    }



    private void Awake()

    {

        pathfinder = GetComponent<AI_PathFinder>();

        pathfinder.OnDestinationReached += Pathfinder_OnDestinationReached;

        waypointController.OnWaypointChanged += WaypointController_OnWaypointChanged;

    }

    private void WaypointController_OnWaypointChanged(Waypoints waypoint)

    {

        pathfinder.SetTarget(waypoint.transform.position);

        print("waypoint changed"); 

    }

    private void Pathfinder_OnDestinationReached()

    {

        SealForce_GameManager.Instance.Timer.Add(waypointController.SetNextWaypoint, Random.Range(waitTimeMin, waitTimeMax));

        print("destination reached"); 

    }   

}

Here is the AI Pathfinder script`

using UnityEngine;

using UnityEngine.AI;



[RequireComponent(typeof(NavMeshAgent))]

public class AI_PathFinder : MonoBehaviour

{



    [HideInInspector]

    public NavMeshAgent agent;

    public EnemyPatrolPoints enemyPatrolPoints;



    [SerializeField] float distanceRemainingThreshold;



    bool m_destinationReached;

    bool destinationReached

    {

        get

        { return m_destinationReached; }



        set

        {

            m_destinationReached = value;



            if (m_destinationReached)

            {

                if (OnDestinationReached != null)

                    OnDestinationReached();

            }

        }

    }



    public event System.Action OnDestinationReached;



    void Start()

    {

        agent = GetComponent<NavMeshAgent>();

        //enemyPatrolPoints = GetComponent<EnemyPatrolPoints>();

    }

    public void SetTarget(Vector3 target)

    {

        agent.SetDestination(target);

    }



    void Update()

    {

        if (destinationReached)

            return;



        if (agent.remainingDistance < distanceRemainingThreshold)

            destinationReached = true;





    }

}

The lines

if (agent.remainingDistance < distanceRemainingThreshold)

    destinationReached = true;

are never reached as long as destinationReached is true because of

if (destinationReached)

    return;

You are setting it to true after the first waypoint is reached and then never reset it to false so your Update is always skipped in the future.

You should add it e.g. to

public void SetTarget(Vector3 target)

{

    agent.SetDestination(target);

    destinationReached = false;

}