props.setBoolean("allow-nether", world.isNetherAllowed());
props.setInt("difficulty", world.getDifficulty().getId());
props.setBoolean("enable-query", server.isQueryEnabled());
props.setBoolean("enable-rcon", server.isRconEnabled());
props.setInt("gamemode", world.getGameMode().getId());
props.setBoolean("generate-structures", world.generatesStructures());
props.setString("level-name", world.getWorldName());
props.setString("level-seed", world.getWorldSeed());
props.setString("level-type", world.getWorldType().toString());
props.setInt("max-build-height", world.getMaxBuildHeight());
props.setInt("max-players", server.getMaxPlayers());