Vector2 v2Normal = new Vector2(normal.x, normal.y);

            float fAngle = Vector2.SignedAngle(v2Normal, Vector2.up);

            gameObject.transform.localRotation = Quaternion.Euler(, fAngle,);

            Vector3 startPos = new Vector3(transform.position.x, transform.position.y+, transform.position.z);

            Vector3 v3Dir =transform.TransformDirection(Vector3.forward);

            Vector3 endPos = startPos + v3Dir * Time.deltaTime * mMoveSpeed;

            // 检测是否碰到模型

            RaycastHit hitInfo;

            if (Physics.Linecast(startPos, endPos, out hitInfo,  << LayerMask.NameToLayer("Wall")))

            {

                // 贴着模型行走

                for (int i = ; i < ; i++)

                {

                    fAngle += 5.0f;

                    gameObject.transform.localRotation = Quaternion.Euler(, fAngle, );

                    v3Dir = transform.TransformDirection(Vector3.forward);

                    endPos = startPos + v3Dir * Time.deltaTime * mMoveSpeed;

                    if (!Physics.Linecast(startPos, endPos, out hitInfo,  << LayerMask.NameToLayer("Wall")))

                    {

                        gameObject.transform.Translate(Vector3.forward * Time.deltaTime * mMoveSpeed);

                        break;

                    }

                }

            }

            else

            {

                gameObject.transform.Translate(Vector3.forward * Time.deltaTime * mMoveSpeed);

            }