UnityのNavmeshでターゲット方向へ移動する例

MoveToTarget.cs

using UnityEngine;

public class MoveToTarget : MonoBehaviour {
	public Transform target;
	NavMeshAgent agent;

	void Start () {
		agent = GetComponent<NavMeshAgent>();
	}

	void Update () {
		agent.SetDestination(target.position);
	}
}