Unity 2018 Artificial Intelligence Cookbook - Second Edition

How to do it...

We will create a patrol behavior component to be used along with a NavMeshAgent component:

1. Create a script named NMPatrol.cs, and include the NavMeshAgent as a required component:

using UnityEngine;using UnityEngine.AI;[RequireComponent(typeof(NavMeshAgent))]public class NMPatrol : MonoBehaviour{  // next steps}

2. Add the member variables required:

public float pointDistance = 0.5f;public Transform[] patrolPoints;private int currentPoint = 0;private NavMeshAgent agent;

3. Create a function for finding the closest patrol point in the array:

private int FindClosestPoint(){  // next step}

4. Add the internal variables required:

int index = -1;float distance = Mathf.Infinity;int i;Vector3 agentPosition = transform.position;Vector3 ...