Unity3D - A *寻路抖动运动

Question

我正在为我的项目使用arongranberg A * Pathfinding。 如果我离他太近，基本上敌人会跟随我的玩家。

正如你在这里看到的那样，敌人的（蓝色人）运动并不像我预期的那样顺畅。

以下是移动检测和动态路径请求的代码。

void checkPosition(){
    currentPosition = transform.position;
    if (previousPosition == null) {
        previousPosition = transform.position;
    } 
    else {

        if (currentPosition.x > previousPosition.x) {
            moveRight ();
        } else if (currentPosition.x < previousPosition.x) {
            moveLeft ();
        }
        if (currentPosition.y > previousPosition.y) {
            moveUp ();
        } else if (currentPosition.y < previousPosition.y) {
            moveDown ();
        } else if (currentPosition.x == previousPosition.x && currentPosition.y == previousPosition.y) {
            //stopNow ();
        }
        previousPosition = currentPosition;
    }
}


IEnumerator UpdatePath(){
    seeker.StartPath(transform.position, target.position, OnPathComplete);
    yield return new WaitForSeconds (1f/updateRate);
    StartCoroutine (UpdatePath ());     
}

我可以做些什么来改善它？