public HexTileMap(Game game, MapData mapData)
            : base(game)
        {
            mGame = (GameMain)game;
            mMapData = mapData;

            mMapViewPosition = new Vector3(0.0f, 0.0f, 0.0f);
            mMapZoom = 1.0f;
        }
 public GameWorld(Game game)
     : base(game)
 {
     mapData = new MapData();
     unitData = new UnitData();
 }