CODEWITHSUNDEEP
c#unity-game-engine
Jonah Starling
Jonah Starling

Reputation: 543

NavAgent Destination Switching

I have a NavAgent that is supposed to randomly run from one target location to the next. Here is my current code.

public Transform target1;
public Transform target2;
NavMeshAgent agent;
Vector3 destinationLoc;

// Use this for initialization
void Start () {
    destinationLoc = target1.position;
    agent = GetComponent<NavMeshAgent> ();
}

// Update is called once per frame
void Update () {
    agent.SetDestination (destinationLoc);
    Debug.Log (agent.remainingDistance);
    if (agent.remainingDistance <= 1.0) {
        Debug.Log ("It gets here.");
        if (Random.Range(1,3) == 1) {
            destinationLoc = target1.position;
            Debug.Log ("Changed to 1.");
        } else {
            destinationLoc = target2.position;
            Debug.Log("Changed to 2");
        }
    }
}

Right now it only switches between two locations but it will eventually be more. Any thoughts on why this code is not working?

Upvotes: 0

Views: 427

Answers (1)

DRapp
DRapp

Reputation: 48139

I think you may be doing an overkill on setting the destination. I would set it up once in the Start() and again only once it has reached its destination. As for the Random.Range(1,3), may be a complete coincidence. You are getting an integer of 3 possibilities and it is returning 1. Try putting into a var, showing the log and adjust from there. Try expanding the range to 30 (for testing)

void Start () {
    destinationLoc = target1.position;
    agent = GetComponent<NavMeshAgent> ();
    agent.SetDestination (destinationLoc);
}

// Update is called once per frame
void Update () {
    Debug.Log (agent.remainingDistance);
    if (agent.remainingDistance <= 1.0) {
        Debug.Log ("It gets here.");
        int rr = Random.Range(1,30);
        Debug.Log( "Random value: " + rr );

        if (rr == 1) {
            destinationLoc = target1.position;
            Debug.Log ("Changed to 1.");
        } else {
            destinationLoc = target2.position;
            Debug.Log("Changed to 2");
        }

        // Set destination AFTER it has been changed
        agent.SetDestination (destinationLoc);

    }
}

Additionally, you might get a better and faster response by going to the sister site of

https://gamedev.stackexchange.com/

Upvotes: 1

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