public override void OnInspectorGUI()
        {
            if (h == null)
            {
                h = (HumanMonitor)target;
            }

            serializedObject.Update();

            EditorGUILayout.PropertyField(serializedObject.FindProperty("meditionPeriod"));
            EditorGUILayout.PropertyField(serializedObject.FindProperty("meditionCount"));
            EditorGUILayout.PropertyField(serializedObject.FindProperty("loadData"));

            if (h.loadData)
            {
                EditorGUILayout.HelpBox("If you load the data, a dataset will be load and you will not play", MessageType.Warning);
            }
            EditorGUILayout.PropertyField(serializedObject.FindProperty("saveData"));
            if (!h.saveData)
            {
                EditorGUILayout.HelpBox("If you do not save your data, it will be lost", MessageType.Warning);
            }

            if (h.saveData || h.loadData)
            {
                var dropArea = GUILayoutUtility.GetRect(Screen.width, 35, GUILayout.MaxWidth(Screen.width - 40));

                if (string.IsNullOrEmpty(h.dataPath))
                {
                    GUI.Box(dropArea, "Drag a data file");
                }
                else
                {
                    GUI.Box(dropArea, Path.GetFileName(h.dataPath));
                }

                DragAndDropFile(dropArea);

                EditorGUILayout.Space();

                GUILayout.BeginHorizontal();
                if (GUILayout.Button("Clear", GUILayout.MaxWidth(Screen.width / 2 - 20)))
                {
                    h.dataPath = "";
                }
                if (GUILayout.Button("Create", GUILayout.MaxWidth(Screen.width / 2 - 20)))
                {
                    CreateFile();
                }
                GUILayout.EndHorizontal();
            }

            serializedObject.ApplyModifiedProperties();
        }
 void OnEnable()
 {
     h = (HumanMonitor)target;
 }