Chronomia

A timing conversion tool for Spin Rhythm XD.

Chronomia is a tool to convert BPM layouts and other tools from Osu!, Clone Hero, Be-Music Source, K-Shoot Mania and Stepmania into SRTB files for use with Spin Rhythm.

Features

Osu! (Osu)

Core

BPM conversion

Cue points

Editor bookmarks to cue points
Break points to cue points

Notes

Hit objects to tap notes

Standard exclusive

Sliders to match streams
Sliders to Spin Rhythm sliders

Metadata

Title to Song Name
Artist to Artist
Source to Subtitle

Be-Music Source / BME / PMS (BMS, BME, PMS)

Core

BPM conversion

Notes

Hit objects to tap notes

Metadata

TITLE to Song Name
ARTIST to Artist
GENRE to Subtitle

K-Shoot Mania (KSM)

Core

BPM conversion

Notes

FX-L to beats (On expert)
FX-R to beats (On XD)
VOL-L to slides (On expert)
VOL-R to slides (On XD)

Metadata

TITLE to Song Name
ARTIST to Artist
ILLUS to Subtitle

Stepmania (SM)

Core

BPM conversion

Notes

Notes to matches

Metadata

TITLE to Song Name
ARTIST to Artist
SUBTITLE to Subtitle

Clone Hero (Chart)

Core

BPM conversion

Notes

Notes to matches

Metadata

Song Name
Artist

Contributing

If you have knowledge of a common rhythm game format, contribute! We recommend looking at the current importers for what the format expected from an importer is. You can see these in the SM and Chart implementations.

The basic structure

All files should have a clearly named import function ie importSM or importChart, these functions are expected to take in an options table and the actual file data.

File data is a string containing the raw file passed in.

Options is an object formatted like the following: (Import/Export specifies when the variable is used, you probably don't need to worry about export options.)

{
  bpm: {
    base: boolean, // Whether to output a base BPM, export
    changes: boolean, // Whether to output BPM changes, export
    offset: boolean // Whether to output chart offset, export
  }
  cue: {
    osu: {
      bookmark: boolean, // Whether to use osu editor bookmarks as cues, import
      break: boolean // Whether to use map break times as cues, import
    }
  }
  note: {
    base: boolean, // Whether to attempt to place notes in the converts. Import.
    ksm: {
      fxL: boolean, // Whether to place FX-L notes. Import.
      fxR: boolean, // Whether to place FX-R notes. Import.
      volL: boolean, // Whether to place Vol-L lasers. Import.
      volR: boolean // Whether to place Vol-R lasers. Import.
    },
    osu: {
      slider: boolean, // Whether to place Osu sliders. Import.
    },
    bms: {
      scratch: boolean, // Whether to place IIDX scratch notes. Import.
    }
  }
  meta: {
    title: boolean, // Whether to use the song title in the meta. Import.
    subtitle: boolean, // Whether to use the song subtitle in the meta. Export.
    artist: boolean // Whether to use the artist in the meta. Export.
  }
}

You should then process the file according to the options and return an object with the format:

{
    name: string, // Meta name
    subtitle: string, // Meta subtitle
    artist: string, // Meta artist
    bpm: number, // Base bpm to use for when changes are off
    offset: number, // Number to globally offset bpm changes by
    bpmChanges: [ // Array of BPM changes
      {
        beat: number, // Time in beats the BPM change occurs at.
        bpm: number, // The BPM it changes to.
        absolute: number // The time in seconds the BPM change occurs at.
      }
    ],
    notes:[ // Array of notes, yet to be defined in format.
      
    ],
    cues:[ // Array of cues/bookmarks/labels
      {
        name: string, // Name associated with it
        absolute: number // Absolute time it occurs
      }
    ]
}

You can then add your converter to the case list at https://github.com/LavenderTheGreat/chronomia/blob/master/index.js#L55 and the appropriate function to load below.

Then add your script to the head of https://github.com/LavenderTheGreat/chronomia/blob/master/index.html around the rest of the converters and submit your PR.

An example of a good PR can be found at the .chart PR: #1