javanbs

A simple java library to read and write .nbs files from Open Note Block Studio.a

javanbs has all the functionality pynbs has, like iterating over Note Block Studio songs

import omninbs.javanbs.NBSReader;
import omninbs.javanbs.NBSNote;

for (NBSNote note : NBSReader.readSong("example.nbs").getNotes()) {
  System.out.print("tick: "); System.out.print(note.getTick());
  System.out.print("instrument: "); System.out.println(note.getInstrument());
}

or generating new songs programmatically

import omninbs.javanbs.NBSSong;
import omninbs.javanbs.NBSNote;

NBSSong song = new NBSSong("example (name)");
for (int i = 0; 0 < 10; i++) {
  song.addNote(new NBSNote(0, i+35, 0, 30, 0), i, 0));
}

Installation

the package can note yet be installed with a package manager.

Reading / Writing

You can use the omninbs.javanbs.NBSReader.readSong(String file) function to read an parse a specific NBS file of any version.

NBSSong song = NBSReader.readSong("example.nbs");

This returns an NBSSong wich can then be written using NBSWriter.writeSong(file, song, optional(version))

NBSWriter.writeSong("example.nbs", song, version);

where version = nil saves it in the newest version.

Fields

Header

The first field is header, the file header. It contains information about the file.

Attribute	Type	Details
header.version	int	The NBS version this file was saved on.
header.defaultInstruments	int	The amount of instruments from vanilla Minecraft in the song.
header.length	int	The length of the song, measured in ticks.
header.layerCount	int	The ID of the last layer with at least one note block in it.
header.name	str	The name of the song.
header.author	str	The author of the song.
header.originalAuthor	str	The original song author of the song.
header.description	str	The description of the song.
header.tempo	int	The tempo of the song.
header.autoSaving	bool	Whether auto-saving has been enabled.
header.autoSaveDuration	int	The amount of minutes between each auto-save.
header.timeSignature	int	The time signature of the song.
header.minutesSpent	int	The amount of minutes spent on the project.
header.leftClicks	int	The amount of times the user has left-clicked.
header.rightClicks	int	The amount of times the user has right-clicked.
header.blocksAdded	int	The amount of times the user has added a block.
header.blocksRemoved	int	The amount of times the user has removed a block.
header.songOrigin	str	The file name of the original MIDI or schematic.
header.looping	bool	Whether the song should loop back to the start after ending.
header.maxLoops	int	The amount of times to loop. 0 = infinite.
header.loopStart	int	The tick the song will loop back to at the end of playback.

Notes

The notes attribute holds a list of all the notes of the song in order.

Attribute	Type	Details
note.tick	int	The tick at which the note plays.
note.layer	int	The ID of the layer in which the note is placed.
note.instrument	int	The ID of the instrument.
note.key	int	The key of the note. (between 0 and 87)
note.volume	int	The velocity of the note. (between 0 and 100)
note.stereo	int	The stereo panning of the note. (between -100 and 100)
note.pitch	int	The detune of the note, in cents. (between -1200 and 1200)

Layers

The layers attribute holds a list of all the layers of the song in order.

Attribute	Type	Details
layer.id	int	The ID of the layer.
layer.name	str	The name of the layer.
layer.lock	bool	Whether the layer is locked.
layer.volume	int	The volume of the layer.
layer.stereo	int	The stereo panning of the layer.

Instruments

The instruments attribute holds a list of all the custom instruments of the song in order.

Attribute	Type	Details
instrument.id	int	The ID of the instrument.
instrument.name	str	The name of the instrument.
instrument.file	str	The name of the sound file of the instrument.
instrument.pitch	int	The pitch of the instrument. (between 0 and 87)
instrument.piano	bool	Whether the piano should automatically press keys with the instrument when the marker passes them.