bms.js

BMS.parse(bms string)

Parse BMS data and returns a JavaScript object.

BMS.stringify(bms object)

Generate BMS data from BMS object.

BMS.isNote(event object)

Checks if the event object is a note event. (11-29, 51,69)

BMS Object

{ "headers": { ... }
, "keysounds": { ... }
, "measureSizes": { "0": 0.5 }
, "events": [ bms events... ]
}

BMS Event Object

{ "measure": measure number (5 for #005)
, "position": position in measure (0 through 1)
, "channel": bms channel (see below)
, "value": "ZZ" (number for BPM events, string for others)
}

For BPM events, only use channel=8. BPM events gets normalized during parsing and when stringified will be converted to hex-bpm or ref-bpm automatically.