• Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
  • Asset Store
  • Get Unity

UNITY ACCOUNT

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account
  • Blog
  • Forums
  • Answers
  • Evangelists
  • User Groups
  • Beta Program
  • Advisory Panel

Navigation

  • Home
  • Products
  • Solutions
  • Made with Unity
  • Learning
  • Support & Services
  • Community
    • Blog
    • Forums
    • Answers
    • Evangelists
    • User Groups
    • Beta Program
    • Advisory Panel

Unity account

You need a Unity Account to shop in the Online and Asset Stores, participate in the Unity Community and manage your license portfolio. Login Create account

Language

  • Chinese
  • Spanish
  • Japanese
  • Korean
  • Portuguese
  • Ask a question
  • Spaces
    • Default
    • Help Room
    • META
    • Moderators
    • Topics
    • Questions
    • Users
    • Badges
  • Home /
  • Help Room /
avatar image
0
Question by mgravelat · Feb 12 at 12:30 AM · c#scripting problemscript.navmeshagentpatrol

Unity Navmesh agent patrol and chase player script issues.

I just began scripting for the first time and am completely stuck with trying to convert this script from a simple patrol script to a script where the enemy will leave the patrol and chase the player the second the player comes into his view. Once I figure this all out I can start working on making attack scripts and game state changes.

If anyone can tell me how they would do it or just send me a tutorial, I'd appreciate it. I have seen multiple patrol tutorials but combining the chase script I have with the ray and the patrol script seems to just keep failing. I have worked a few days on this problem but am running out of time and have to work on other parts of the assignment as well.

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class NPCSimplePatrol : MonoBehaviour {
 
     //Dictates whether the agent waits on each node.
     [SerializeField]
     bool _patrolWaiting;
 
     //The total time we wait at each node.
     [SerializeField]
     float _totalWaitTime = 3f;
 
     //The probability of switching direction.
     [SerializeField]
     float _switchProbability = 0.2f;
 
     //The list of all patrol nodes to visit.
     [SerializeField]
     List<Waypoint> _patrolPoints;
 
     //Private variables for base behaviour.
     UnityEngine.AI.NavMeshAgent _navMeshAgent;
     int _currentPatrolIndex;
     bool _travelling;
     bool _waiting;
     bool _patrolForward;
     float _waitTimer;
 
     // Use this for initialization
     public void Start()
     {
         _navMeshAgent = this.GetComponent<UnityEngine.AI.NavMeshAgent>();
 
         if (_navMeshAgent == null)
         {
             Debug.LogError("The nav mesh agent component is not attached to " + gameObject.name);
         }
         else
         {
             if (_patrolPoints != null && _patrolPoints.Count >= 2)
             {
                 _currentPatrolIndex = 0;
                 SetDestination();
             }
             else
             {
                 Debug.Log("Insufficient patrol points for basic patrolling behaviour.");
             }
 
         }
     }
 
     
     public void Update()
     {
         Debug.Log(_patrolWaiting);
         //Check if we're close to the destination.
         if (_travelling && _navMeshAgent.remainingDistance <= 1.0f)
         {
             _travelling = false;
 
             //If we're going to wait, then wait.
             if (_patrolWaiting)
             {
                 _waiting = true;
                 _waitTimer = 0f;
             }
             else
             {
                 ChangePatrolPoint();
                 SetDestination();
             }
         }
       
         //Instead if we're waiting.
         if (_waiting)
         {
             _waitTimer += Time.deltaTime;
             if (_waitTimer >= _totalWaitTime)
             {
                 _waiting = false;
 
                 ChangePatrolPoint();
                 SetDestination();
             }
         }
     }
 
     private void SetDestination()
     {
         if (_patrolPoints != null)
         {
             Vector3 targetVector = _patrolPoints[_currentPatrolIndex].transform.position;
             _navMeshAgent.SetDestination(targetVector);
             _travelling = true;
         }
     }
 
     /// <summary>
     /// Selects a new patrol point in the available list, but
     /// also with a small probability allows for us to move forward or backwards.
     /// </summary>
     private void ChangePatrolPoint()
     {
         if (UnityEngine.Random.Range(0f, 1f) <= _switchProbability)
         {
             _patrolForward = !_patrolForward;
         }
 
         if (_patrolForward)
         {
             _currentPatrolIndex = (_currentPatrolIndex + 1) % _patrolPoints.Count;
         }
         else
         {
             if (--_currentPatrolIndex < 0)
             {
                 _currentPatrolIndex = _patrolPoints.Count - 1;
             }       
         }
     }
 }

Comment
Add comment
10 |3000 characters needed characters left characters exceeded
▼
  • Viewable by all users
  • Viewable by moderators
  • Viewable by moderators and the original poster
  • Advanced visibility
Viewable by all users

0 Replies

· Add your reply
  • Sort: 

Your answer

Hint: You can notify a user about this post by typing @username

Up to 2 attachments (including images) can be used with a maximum of 524.3 kB each and 1.0 MB total.

Welcome to Unity Answers

The best place to ask and answer questions about development with Unity.

To help users navigate the site we have posted a site navigation guide.

If you are a new user to Unity Answers, check out our FAQ for more information.

Make sure to check out our Knowledge Base for commonly asked Unity questions.

If you are a moderator, see our Moderator Guidelines page.

We are making improvements to UA, see the list of changes.



Follow this Question

Answers Answers and Comments

687 People are following this question.

avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image avatar image

Related Questions

Can someone please help me find out what wrong with my code. 1 Answer

Menu object not responding 0 Answers

Update() and FixedUpdate() not running on C# scripts 0 Answers

How can i scale a cube from one side only on x only ? 2 Answers

How can i sort a List ? 1 Answer

  • Anonymous
  • Sign in
  • Create
  • Ask a question
  • Spaces
  • Default
  • Help Room
  • META
  • Moderators
  • Explore
  • Topics
  • Questions
  • Users
  • Badges