koobas.hobune.stream
How do you set up navmesh agents to go to multiple destinations?
I looked at some tutorials and the documentation on how NavMeshAgents work, and currently have NPC's going to a target in my scene. I can't seem to find where the documentation tells me how to setup multiple destinations for my NPC though. Here is my code for the NavMesh with one target:
public var target : Transform;
function Start () {
GetComponent(NavMeshAgent).destination = target.position;
}
Now here is what I thought up in order to do multiple positions:
public var currentTarget : Transform;
public var targets : Transform[];
public var navigation : NavMeshAgent;
public var i : int = 0;
function Start () {
navigation.destination = targets[i].position;
}
function Update () {
var dist = Vector3.Distance(targets[i].position,transform.position);
currentTarget = targets[i];
//if npc reaches its destination...
if (dist < 5){
//go to next target by setting it as the new destination
navigation.destination = navigation.nextPosition;
if (i < targets.Length){
//change next target
i++;
navigation.nextPosition = targets[i].position;
}
}
}
At the moment the NPC is warping all the way down to the last transform in targets[], so I think it's because "i" is getting incremented too fast? How should I fix this?
I figured it out a fix for myself, but it doesn't use nextPosition, so if anyone would like to chime in and explain how I would exactly use that, it'd be great.
Here's my fix, everything works fine:
public var currentTarget : Transform;
public var targets : Transform[];
public var navigation : NavMeshAgent;
private var i : int = 0;
function Start () {
navigation.destination = targets[i].position;
}
function Update () {
var dist = Vector3.Distance(targets[i].position,transform.position);
currentTarget = targets[i];
//if npc reaches its destination (or gets close)...
if (dist < 5){
if (i < targets.Length - 1){ //negate targets[0], since it's already set in destination.
i++; //change next target
navigation.destination = targets[i].position; //go to next target by setting it as the new destination
}
}
}
Thanks. $$anonymous$$odified to cycle through targets, to "loop" the NPC thingy visiting all different points. Could potentially be modified to find random targets.
Hi, to cycle between destinations:
#pragma strict
private var targets : GameObject[];
private var navigation : NavMeshAgent;
private var i : int = 0;
function Start ()
{
navigation = GetComponent(NavMeshAgent);
targets = GameObject.FindGameObjectsWithTag("NavTarget");
//set first target
navigation.destination = targets[i].transform.position;
}
function Update ()
{
var dist = Vector3.Distance(targets[i].transform.position,transform.position);
//currentTarget = targets[i].transform;
//if npc reaches its destination (or gets close)...
if (dist < 2)
{
i++; //change next target
if (i < targets.Length )
{
navigation.destination = targets[i].transform.position; //go to next target by setting it as the new destination
}
//check if at end of cycle, then reset to beginning of cycle
if (i == targets.Length )
{
Debug.Log("NAVIGATION FINISHED. RESET.");
i = 0;
navigation.destination = targets[i].transform.position;
}
}
}
Link to the docs... (I imagine that these docs are newer than the question). http://docs.unity3d.com/Manual/nav-AgentPatrol.html
