NavmeshAgentからパスを取得する

FindPath.cs

using System.Collections;
using UnityEngine;
using UnityEngine.AI;

[RequireComponent(typeof(NavMeshAgent))]
public class Path2 : MonoBehaviour {

    [SerializeField] NavMeshAgent agent;
    [SerializeField] Transform target;

    const int maxPosition = 9; // パスの最大登録数

    // 座標リスト。使い回す
    Vector3[] positions = new Vector3[maxPosition];

    IEnumerator Start ()
    {
        agent.updatePosition = false;
        agent.SetDestination(target.position);

        yield return new WaitWhile(() => agent.pathStatus != NavMeshPathStatus.PathComplete);

        agent.path.GetCornersNonAlloc(positions);
        agent.Stop();
	}

    private void OnDrawGizmosSelected()
    {
        for (int i = 0; i < positions.Length - 1; i++)
        {
            Gizmos.DrawLine(positions[i], positions[i + 1]);
        }
    }

}