How to make a navmesh agent ignore navmesh borders

Question

I'm making a game where you have to run from the police, but i'm having some issues with the AI of the police car. I'm trying to use navmesh agent with physics so I'm using navmeshagent.steering target to make the car steering. In the navmesh I have some gaps because I want the cars to move through the main road but if they cross the gaps I want them to keep moving outside the road but when they cross the gap the navmesh agent stays in the road and doesn't cross it with the car. I've tried turning the navmeshagent.updateposition to false and changing it by myself but it stills happening, so I wanted to know if there's a way to make the navmesh don't stay in the gaps of the navmesh.

Answer 1

Well maybe it's not the best way to do it but I made it by enabling and desabling the navmeshagent component. I put it in a coroutine so it wouldn't do it each frame. Here I let you my code so you can see exactly how i did it. It's a Little messy but i hope it helps you.

The important things are on IEnumerator calcularCamino, void GetSteer, void start, and the beginning of the update using UnityEngine; using System.Collections; using System.Collections.Generic;

 public class MovimientoPolicia : MonoBehaviour {
 
     public int TD1_TT2_TA3;
     public float maxTorque;
     public float maxBrake;
     public float maxSpeed;
     public float maxRevSpeed;
     public float maxSteer;
 
     public float velocidadActual;
 
     private Rigidbody rg;
     public Transform centerOfMass;
 
     public WheelCollider[] wheelColliders = new WheelCollider[4];
     public Transform[] tireMeshes = new Transform[4];
 
     private float vueltasRueda;
     public float vs;
 
     private GameObject objeto;
     private Transform seguirObjeto;
 
     public float steering;
     private bool reversa = true;
 
     private bool deteccion = false;
     private float reverCounter = 0f;
     public float waitToReverse = 2f;
     public float reverFor = 1.5f;
 
     private int contadorReversas;
     public MeshRenderer mesh;
 
     public NavMeshAgent nav;
     private NavMeshPath path;
 
     private float spawnX;
     private float spawnZ;
     private Vector3 pos;
 
     private float separacion;
 
     void Start()
     {
         rg = GetComponent<Rigidbody>();
         rg.centerOfMass = centerOfMass.localPosition;
         objeto = GameObject.FindGameObjectWithTag("Carro");
         seguirObjeto = objeto.transform;
         path = new NavMeshPath();
         nav.SetDestination(seguirObjeto.position);
         StartCoroutine("calcularCamino");
         nav.updatePosition = false;
     }
 
     void Update()
     {
         UpdateMeshesPositions();
         GetSteer();
         nav.nextPosition = transform.position;
         switch (TD1_TT2_TA3)
         {
             case 1:
                 vueltasRueda = wheelColliders[0].rpm;
                 break;
             case 2:
                 vueltasRueda = wheelColliders[2].rpm;
                 break;
             case 3:
                 vueltasRueda = wheelColliders[2].rpm;
                 break;
             default:
 
                 break;
         }
         float radioV = ((2 * Mathf.PI * wheelColliders[3].radius) * vueltasRueda) * 60 / 1000;
         vs = Mathf.Round(radioV);
         velocidadActual = Mathf.Abs(vs);
 
         if (rg.velocity.magnitude > 2)
         {
             contadorReversas = 0;
         }
 
         if (rg.velocity.magnitude < 0.1 && !reversa)
         {
             reverCounter += Time.deltaTime;
             if (reverCounter >= waitToReverse)
             {
                 reverCounter = 0;
                 reversa = true;
                 contadorReversas ++;
 
                 if (contadorReversas > 4 && !mesh.isVisible && rg.velocity.magnitude < 0.1)
                 {
                     transform.rotation = Quaternion.Euler(0, transform.rotation.y, 0);
                     spawnX = seguirObjeto.position.x + Random.Range(10, 20);
                     spawnZ = seguirObjeto.position.z + Random.Range(10, 20);
                     pos = new Vector3(spawnX, 0, spawnZ);
                     transform.position = pos;
                 }
             }
         } else if (!reversa)
         {
             reverCounter = 0;
             steering *= 1;
         }
 
         if (reversa)
         {
             steering *= -1;
             reverCounter += Time.deltaTime;
             if (reverCounter >= reverFor)
             {
                 reverCounter = 0;
                 reversa = false;
             }
         }
 
         Vector3 dif = transform.position - seguirObjeto.position;
         separacion = dif.sqrMagnitude;
         if (separacion > 40000)
         {
             transform.rotation = Quaternion.Euler(0, transform.rotation.y, 0);
             spawnX = seguirObjeto.position.x + Random.Range(10, 20);
             spawnZ = seguirObjeto.position.z + Random.Range(10, 20);
             pos = new Vector3(spawnX, 0, spawnZ);
             transform.position = pos;
         }
     }
 
     void FixedUpdate()
     {
         wheelColliders[0].steerAngle = -steering;
         wheelColliders[1].steerAngle = -steering;
 
         if (!reversa)
         {
             switch (TD1_TT2_TA3)
             {
                 case 1:
                     if (velocidadActual < maxSpeed)
                     {
                         //acelerar delantera
                         wheelColliders[0].motorTorque = maxTorque;
                         wheelColliders[1].motorTorque = maxTorque;
                     }
                     else
                     {
                         wheelColliders[0].motorTorque = maxTorque / 32;
                         wheelColliders[1].motorTorque = maxTorque / 32;
                     }
                     break;
                 case 2:
                     if (velocidadActual < maxSpeed)
                     {
                         //acelerar trasera
                         wheelColliders[2].motorTorque = maxTorque;
                         wheelColliders[3].motorTorque = maxTorque;
                     }
                     else
                     {
                         wheelColliders[2].motorTorque = maxTorque / 32;
                         wheelColliders[3].motorTorque = maxTorque / 32;
                     }
                     break;
                 case 3:
                     if (velocidadActual < maxSpeed)
                     {
                         //acelerar cuatro
                         wheelColliders[0].motorTorque = maxTorque;
                         wheelColliders[1].motorTorque = maxTorque;
                         wheelColliders[2].motorTorque = maxTorque;
                         wheelColliders[3].motorTorque = maxTorque;
                     }
                     else
                     {
                         wheelColliders[0].motorTorque = maxTorque / 32;
                         wheelColliders[1].motorTorque = maxTorque / 32;
                         wheelColliders[2].motorTorque = maxTorque / 32;
                         wheelColliders[3].motorTorque = maxTorque / 32;
                     }
                     break;
                 default:
 
                     break;
             }
         }
         else if (reversa)
         {
             switch (TD1_TT2_TA3)
             {
                 case 1:
                     if (velocidadActual < maxRevSpeed)
                     {
                         //acelerar delantera
                         wheelColliders[0].motorTorque = -maxTorque;
                         wheelColliders[1].motorTorque = -maxTorque;
                     }
                     else
                     {
                         wheelColliders[0].motorTorque = -maxTorque / 32;
                         wheelColliders[1].motorTorque = -maxTorque / 32;
                     }
                     break;
                 case 2:
                     if (velocidadActual < maxRevSpeed)
                     {
                         //acelerar trasera
                         wheelColliders[2].motorTorque = -maxTorque;
                         wheelColliders[3].motorTorque = -maxTorque;
                     }
                     else
                     {
                         wheelColliders[2].motorTorque = -maxTorque / 32;
                         wheelColliders[3].motorTorque = -maxTorque / 32;
                     }
                     break;
                 case 3:
                     if (velocidadActual < maxRevSpeed)
                     {
                         //acelerar cuatro
                         wheelColliders[0].motorTorque = -maxTorque;
                         wheelColliders[1].motorTorque = -maxTorque;
                         wheelColliders[2].motorTorque = -maxTorque;
                         wheelColliders[3].motorTorque = -maxTorque;
                     }
                     else
                     {
                         wheelColliders[0].motorTorque = -maxTorque / 32;
                         wheelColliders[1].motorTorque = -maxTorque / 32;
                         wheelColliders[2].motorTorque = -maxTorque / 32;
                         wheelColliders[3].motorTorque = -maxTorque / 32;
                     }
                     break;
                 default:
 
                     break;
             }
         }
     }
 
     void GetSteer()
     {
         Vector3 steerVector = transform.InverseTransformPoint(nav.steeringTarget);
         steering = maxSteer * (steerVector.x / steerVector.magnitude);
     }
 
     IEnumerator calcularCamino ()
     {
         nav.enabled = false;
         nav.enabled = true;
 
         NavMesh.CalculatePath(transform.position, seguirObjeto.position, NavMesh.AllAreas, path);
         nav.path = path;
 
         yield return new WaitForSeconds(0.5f);
 
         StartCoroutine("calcularCamino");
     }
 
     void UpdateMeshesPositions()
     {
         for (int i = 0; i < 4; i++)
         {
             Quaternion quat;
             Vector3 pos;
             wheelColliders[i].GetWorldPose(out pos, out quat);
 
             tireMeshes[i].position = pos;
             tireMeshes[i].rotation = quat;
         }
     }
 }

How to make a navmesh agent ignore navmesh borders

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