koobas.hobune.stream
How to make enemies randomly wander in a certain area of NavMesh?
Hey Guys,
So I'm currently making an open world game, and I want to make it so my enemies will roam around certain areas.
I have all my coding done for the enemies to attack my character if I move into a certain distance, but when I'm not in there radius I've currently just got them in a walk animation on the spot.
This is what I have so far... using UnityEngine; using UnityEngine.AI;
public class EnemyController : MonoBehaviour
{
public float lookRadius = 10f;
Transform target;
NavMeshAgent agent;
CharacterCombat combat;
private BaseEnemyAnimator baseEnemyAnimator;
private float wanderSpeed = 2f;
public float normalSpeed;
public int roamRadius=70;
void Start()
{
target = PlayerManager.instance.player.transform;
agent = GetComponent<NavMeshAgent>();
combat = GetComponent<CharacterCombat>();
normalSpeed = agent.speed;
baseEnemyAnimator = GetComponent<BaseEnemyAnimator>();
}
void Update()
{
// Distance to the target
float distance = Vector3.Distance(target.position, transform.position);
//if not inside the lookRadius
if (distance >= lookRadius)
{
agent.speed = wanderSpeed;
baseEnemyAnimator.IsWandering();
}
// If inside the lookRadius
if (distance <= lookRadius)
{
// Move towards the target
agent.SetDestination(target.position);
agent.speed = normalSpeed;
baseEnemyAnimator.IsNotWandering();
// If within attacking distance
if (distance <= agent.stoppingDistance)
{
CharacterStats targetStats = target.GetComponent<CharacterStats>();
if (targetStats != null)
{
combat.Attack(targetStats);
}
FaceTarget(); // Make sure to face towards the target
}
}
}
// Rotate to face the target
void FaceTarget()
{
Vector3 direction = (target.position - transform.position).normalized;
Quaternion lookRotation = Quaternion.LookRotation(new Vector3(direction.x, 0, direction.z));
transform.rotation = Quaternion.Slerp(transform.rotation, lookRotation, Time.deltaTime * 5f);
}
// Show the lookRadius in editor
void OnDrawGizmosSelected()
{
Gizmos.color = Color.red;
Gizmos.DrawWireSphere(transform.position, lookRadius);
}
}
If anyone could help me figure out how to move them it would be greatly appreciated!
Happy Easter
If the world is big enough you could just pick a random position around them like new Vector3(transform.position.x + Random.Range(-x, x), 0, transform.position.y + Random.Range(-x, x)
If you want them to stay in a certain area you could parent them to an object with a box colider and use the bounds of it as max points for the next position. You can access the bounds.min and bound.max of the collider.
