Can someone Please Help with the worldArea

//create an Area object
Area area = new Area(...);


//create a WorldArea which visualizes the Area object
WorldArea worldArea = new WorldArea(area);


//optionally change some settings
worldArea.setAlwaysVisible(false);
worldArea.setColor(0xFF0000AA);  //RGBA hex code


//attach the WorldArea object to a player
player.addWorldElement(worldArea);