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if (Input.touchCount > 0 && Input.GetTouch(0).phase == TouchPhase.Began)
            {
                focusObj = null;
                Ray ray = Camera.main.ScreenPointToRay(Input.GetTouch(0).position);
                RaycastHit hit;

                if (Physics.Raycast(ray, out hit, Mathf.Infinity))
                {
                    focusObj = hit.transform.gameObject;

                }
            }
            if (Input.GetTouch(0).phase == TouchPhase.Ended)
            {
                if (focusObj != null)
                {
                    focusObj.GetComponent<IntKsgKey>().PressKeyByRaycast();
                }

                focusObj = null;
            }

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