private void Awake()
 {
     domina         = GetComponent <DominaAttribute>();
     humenAttribute = GameObject.FindWithTag("Player").GetComponent <HumenAttributeManage>();
     placeDomina    = GameObject.FindWithTag("Player").GetComponent <PlaceDomina>();
     view           = GameObject.Find("ViewManagment").GetComponent <ExtraMessageView>();
     rigidbody      = GetComponent <Rigidbody>();
     player         = GameObject.FindWithTag("Player").GetComponent <Transform>();
 }
    // Update is called once per frame
    void Update()
    {
        // 只有准备好放置才会出现后面的情况
        if (!IfPreparePlace)
        {
            return;
        }

        dominaAttribute = humenAttribute.DominaModel;

        ifCollider = false;

        dominaModel.localScale = new Vector3(dominaAttribute.xScale, dominaAttribute.yScale, dominaAttribute.zScale);
        Ray        ray = Camera.main.ScreenPointToRay(Input.mousePosition);
        RaycastHit hit;

        if (Physics.Raycast(ray, out hit))
        {
            if (hit.collider.CompareTag("Floor"))
            {
                // 如果是地板的话,才可以放置

                // 首先在在碰撞点生成一个绿色透明的多米诺骨牌,表示将要放置的多米诺骨牌
                dominaModel.transform.position = new Vector3(hit.point.x, dominaAttribute.yScale / 2, hit.point.z);
                ifCollider = true;

                // 如果按下R键,则可以将该多米诺骨牌绕Y咒向右旋转
                if (Input.GetKey(KeyCode.R))
                {
                    dominaModel.Rotate(0, 1, 0);
                }
                if (Input.GetKey(KeyCode.E))
                {
                    dominaModel.Rotate(0, -1, 0);
                }
                nowRotation  = dominaModel.rotation;
                nowTransform = dominaModel.position;

                if (Input.GetButtonDown("Fire1"))
                {
                    if (Vector3.Distance(hit.point, transform.position) > 3f)
                    {
                        extraView.ShowExtraMessage("目标地点距离角色太远了!请走进一点再放置多米诺骨牌");
                    }
                    else
                    {
                        domina = humenAttribute.Cube;
                        //GameObject cube = GameObject.Instantiate<GameObject>(domina, nowTransform, nowRotation);
                        //domina.SetActive(true);
                        domina.transform.position = nowTransform;
                        domina.transform.rotation = nowRotation;
                        humenAttribute.IsGetCube  = false;
                        IfPreparePlace            = false;
                        dominaModel.position      = originPositionModel;
                    }
                }
            }
        }

        if (!ifCollider)
        {
            dominaModel.position = originPositionModel;
        }
    }