//发射一条射线,去检测玩家是否在自己面前,用来随后的发射炮弹

            bool isForward = false;

            var TranformShootPoint = ai.WorkingMemory.GetItem<GameObject>("enemyShootPoint");

            Ray ray = new Ray(TranformShootPoint.transform.position, TranformShootPoint.transform.forward);

            RaycastHit hit;//这个是碰撞检测的目标

            if (Physics.Raycast(ray, out hit, ))//传入的参数依次是：射线、射线碰撞物、射线检测距离

            {

                GameObject obj = hit.transform.gameObject;//得到碰撞的游戏对象

                if (obj.tag == "Player")

                {

                    isForward = true;

                }

            }