解决NavmeshAgent寻路边界的判定

if (Input.GetMouseButtonDown(1))
{
    NavMeshHit hit;
    NavMesh.Raycast(transform.position, target.position, out hit, 1);

    if (hit.hit)
    {
        NavMeshPath path = new NavMeshPath();
        if (agent.CalculatePath(hit.position, path))
        {
            var pos = path.corners[path.corners.Length - 1];
            var o = GameObject.CreatePrimitive(PrimitiveType.Sphere);
            o.transform.localScale = Vector3.one * 0.1f;
            o.transform.position = pos;
        }
    }
}