Enemy AI Random Patrolling

I'm trying to make an Enemy AI. I decided to start with random patrolling before making the attack and other. I tried this:

Code (CSharp):

1. public NavMeshAgent agent;
2. public Vector3 RandomPoint;
3. public Vector3 RandomPointOnTerrain;
4. public bool isPatrolling;
5. void Start(){
6.    agent = GetComponent<NavMeshAgent>();
7.  
8. }
9. void Update(){
10.    if(isPatrolling == false){ //it finished the current patrolle and need other point
11.       RandomPoint = Random.insideUnitSphere * 6; //find point in sphere
12.       RandomPointOnTerrain = new Vector3(RandomPoint.x, Terrain.activeTerrain.SampleHeight(RandomPoint), RandomPoint.z); //find the random point on terrain
13.       agent.SetDestination(RandomPointOnTerrain); //set the patrolling target
14.       isPatrolling = true //it received a target
15.     }
16.     if(agent.remainingDistance > 0){
17.        isPatrolling = true; //still patrolling
18.     }
19.     else{
20.        isPatrolling = false; //it finished the current patrolle and need other point
21.     }
22. }
23.  
24.  
25.  

It doesn't work.

 

A screenshot would probably help. Also what exactly doesn't work.

Looking at your code

agent.remainingDistance > 0

doesn't work. You have to subtract your

agent.StoppingDistance

, otherwise you will probably never reach 0 on the remaining distance.

 

Ok, thank you for this information. Only this is a problem with the code? Because the enemies doesn't move.

 

Could you show a screenshot of you generated NavMesh?
Did you try to debug your generated position?

If you want to make sure your generated position are valid, use

NavMesh.SamplePosition

.

 

@MikeyJY I would suggest you test everything one by one, so that you see which thing works and which doesn't. That way you can isolate your problem faster. i.e. visualize/do Debug.Log prints for those random points, check that they are valid like suggested above and so on.

 

@DwinTeimlon The navmesh works for other AI animals
@Olmi I'm doing this. In all my script I have a public bool isScriptHere. I enable after a line of code that I'm not sure it is executing and I i see the checkbox checked in Inspector that means the line is executed.