NavMeshAgent.SamplePathPosition

Parameters

Returns

bool True if terminated before reaching the position at maxDistance, false otherwise.

Description

Sample a position along the current path.

This function looks ahead a specified distance along the current path. Details of the mesh at that position are then returned in a NavMeshHit object. This could be used, for example, to check the type of surface that lies ahead before the character gets there - a character could raise his gun above his head if he is about to wade through water, say.

#pragma strict
public var target: Transform;
public var mesh: NavMesh;
private var agent: NavMeshAgent;
private var waterMask: int;
function Start() {
	agent = GetComponent.<NavMeshAgent>();
	waterMask = 1 << NavMesh.GetAreaFromName("Water");
	agent.SetDestination(target.position);
}
function Update() {
	var hit: NavMeshHit;
	// Check all areas one length unit ahead.
	if (!agent.SamplePathPosition(NavMesh.AllAreas, 1.0F, hit))if ((hit.mask & waterMask) != 0) {
		// Water detected along the path...
	}
}

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour {
    public Transform target;
    public NavMesh mesh;
    private NavMeshAgent agent;
    private int waterMask;


    void Start() {
        agent = GetComponent<NavMeshAgent>();
        waterMask = 1 << NavMesh.GetAreaFromName("Water");
        agent.SetDestination(target.position);
    }
    
    
    void Update() {
        NavMeshHit hit;
        
        // Check all areas one length unit ahead.
        if (!agent.SamplePathPosition(NavMesh.AllAreas, 1.0F, out hit))
            if ((hit.mask & waterMask) != 0) {
            	// Water detected along the path...
            }
    }
}