public boolean isSupportedByWorld(String group, String world){
		if(xm.getPermissions().get().isSet("groups." + group + ".worlds")){
			String[] worldsSupported = xm.getPermissions().get().getStringList("groups." + group + ".worlds").toArray(new String[0]);
			
			for(int i = 0; i < worldsSupported.length; i++){
				if(worldsSupported[i].equalsIgnoreCase(world)){			
					return true;
				}
				if(worldsSupported[i].equalsIgnoreCase("-" + world)){
					return false;
				}
			}
			
			return false;
		}
		else{
			return true;
		}
	}