NavMesh.SamplePosition и NavMesh.AllAreas

using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.AI;
 
public class NavMesh : MonoBehaviour
{
    public float random_point_radius = 25;
    public Transform player;
    public Transform patrol_zone_center;
    NavMeshAgent agent;
    NavMeshPath nav_mesh_path;
    Vector3 random_point;
    bool path_complete;
    bool ray_blocked;
    NavMeshHit hit;
 
    void Start()
    {
        agent = GetComponent<NavMeshAgent>();
        nav_mesh_path = new NavMeshPath();
        Nav_random_point();
    }
 
    void Nav_random_point()
    {
        bool get_correct_point = false;
        while (!get_correct_point)
        {
            NavMeshHit navmesh_hit;
            NavMesh.SamplePosition(Random.insideUnitSphere * random_point_radius + patrol_zone_center.position, out navmesh_hit, random_point_radius, NavMesh.AllAreas);
            random_point = navmesh_hit.position;
 
            agent.CalculatePath(random_point, nav_mesh_path);
            if (nav_mesh_path.status == NavMeshPathStatus.PathComplete) get_correct_point = true;
        }
        path_complete = true;
        agent.SetDestination(random_point);
    }
 
    void OnDrawGizmos()
    {
        Gizmos.color = Color.yellow;
        Gizmos.DrawWireSphere(patrol_zone_center.position, random_point_radius);
    }
}