maia-util/es6/sort_points_asc.js

Utility math and music functions supporting various applications by Music Artificial Intelligence Algorithms, Inc.

export default function sort_points_asc(a, b){
  // Tom Collins 17/11/2014.
  // In
  // a Object mandatory
  // b Object mandatory
  // Out Object
	// A helper function to sort two notes (points) or rests by ascending ontime.
	// If the ontimes match and MNNs are defined, sort by these instead. If these
	// match, sort by staffNo. If these match, sort by voiceNo.

	if (a.ontime != b.ontime){
    return a.ontime - b.ontime;
	}
	if (a.MNN != undefined){
		if (a.MNN != b.MNN){
			return a.MNN - b.MNN;
		}
	}
	if (a.staffNo != b.staffNo){
		return a.staffNo - b.staffNo;
	}
	return a.voiceNo - b.voiceNo;
}