public String[] getPlayerGroups(String playerName){
		ArrayList<String> groups = new ArrayList<String>();
		String[] worlds = xm.getXworld().getAllWorlds();
		for(int i = 0; i < worlds.length; i++){
			if(xm.getUsers().get().isSet("users." + playerName + "." + worlds[i])){
				groups.add(xm.getUsers().get().getString("users." + playerName + "." + worlds[i]));
			}
		}
		
		return groups.toArray(new String[0]);
	}