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24 changes: 0 additions & 24 deletions shared/audio/scratch.ts

This file was deleted.

55 changes: 1 addition & 54 deletions shared/midi.ts
Original file line number Diff line number Diff line change
Expand Up @@ -125,57 +125,4 @@ export type MidiSubjectMessage<T extends MidiMessage = MidiMessage> = {
name: MidiInstrumentName;
type: MidiMessageType;
msg: T;
}

export const equalControlButton = (button: ControlButtonMapping | undefined, msg: MidiSubjectMessage) => {
if (!button) {
return false;
}

const noteMsg = msg.msg as easymidi.Note;
return button.channel === noteMsg.channel && button.note === noteMsg.note;
};

export const equalKeyboard = (keyboard: KeyboardMapping | undefined, msg: MidiSubjectMessage) => {
if (!keyboard) {
return false;
}

const noteMsg = msg.msg as easymidi.Note;
return keyboard.channel === noteMsg.channel;
};

export const isNoteOnEvent = (msg: MidiSubjectMessage): msg is MidiSubjectMessage<NoteOnEvent> => {
return msg.type === 'noteon';
}

export const isNoteOffEvent = (msg: MidiSubjectMessage): msg is MidiSubjectMessage<NoteOffEvent> => {
return msg.type === 'noteoff';
}

export const isControlChangeEvent = (msg: MidiSubjectMessage): msg is MidiSubjectMessage<ControlChangeEvent> => {
return msg.type === 'cc';
}

export const equalChords = (chord1: Note[], chord2: Note[]) => {
const set1 = new Set(chord1);
const set2 = new Set(chord2);

if (set1.size !== set2.size) {
return false;
}

for (const c of set1.values()) {
if (!set2.has(c)) {
return false;
}
}

return true;
}

export type MidiSubjectMessage<T extends MidiMessage = MidiMessage> = {
name: MidiInstrumentName;
type: MidiMessageType
msg: T;
}
}
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