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event-melody.ts
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event-melody.ts
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import _ from "lodash";
import * as Tone from "tone";
import { Note } from "@tonaljs/tonal";
import { getNameForEvent, GlobalConfig } from "../config";
import { StatSnapshot } from "../stats";
import { getRootForOffset, getScaledMelody } from "./melody";
import { Logger, Module, PlaySettings } from "./types";
interface Config {
readonly melodies: Record<string, readonly string[] | false>;
readonly defaultSuccessMelody: readonly string[];
readonly defaultErrorMelody: readonly string[];
readonly ignoreSuccesses: Record<string, boolean>;
}
export class EventMelodyModule implements Module {
public readonly name = "Melody (Events)";
public readonly meter: Tone.Meter;
private readonly volume: Tone.Volume;
private readonly melodySynth: Tone.MonoSynth;
private readonly dissonantSynth: Tone.MonoSynth;
private readonly melodyReverb: Tone.Reverb;
constructor(
volume: number,
private readonly config: GlobalConfig,
private readonly logger: Logger
) {
this.meter = new Tone.Meter();
this.volume = new Tone.Volume(volume).connect(this.meter);
this.melodyReverb = new Tone.Reverb();
this.melodySynth = new Tone.MonoSynth({
oscillator: {
type: "sine",
},
envelope: {
attack: 0.01,
release: 0.01,
},
volume: -10,
}).chain(this.melodyReverb, this.volume, Tone.Destination);
this.dissonantSynth = new Tone.MonoSynth({
oscillator: {
type: "sine",
},
envelope: {
attack: 0.01,
release: 0.01,
},
volume: -10,
}).chain(this.melodyReverb, this.volume, Tone.Destination);
}
public play(
snapshot: StatSnapshot,
time: number,
{ mainSpacing, semitoneOffset }: PlaySettings
): void {
const { counts } = this.config;
const config = this.config.eventMelodies as Config;
const sorted = _.sortBy(
snapshot.data
.map((s) => {
const { endpoint, success } = s;
const count =
(success
? counts.expectedSuccesses[endpoint] ??
counts.defaultExpectedSuccesses
: counts.expectedErrors[endpoint] ??
counts.defaultExpectedErrors) / s.count;
return { endpoint, success, count };
})
.filter((s) => {
if (s.success && config.ignoreSuccesses[s.endpoint])
return false;
if (s.success && config.melodies[s.endpoint] === false) {
return false;
}
const threshold = s.success
? counts.notableSuccessThreshold
: counts.notableErrorThreshold;
return s.count < threshold;
}),
(s) => s.count
);
const pick =
sorted.find((s) => !s.success) ?? sorted.find((s) => s.success);
if (pick === undefined) return;
this.logger.log(
(pick.success ? "🎉 " : "😭 ") +
getNameForEvent(pick.endpoint, this.config)
);
let melody = config.melodies[pick.endpoint];
if (melody === undefined || melody === false) {
melody = pick.success
? config.defaultSuccessMelody
: config.defaultErrorMelody;
}
const scaledMelody = getScaledMelody(
getRootForOffset(semitoneOffset),
melody
);
new Tone.Part(
(time, value) => {
this.melodySynth.triggerAttackRelease(
value.note,
1.25 / scaledMelody.length,
time
);
if (!pick.success) {
const dissonantNote = Note.transpose(value.note, "2m");
this.dissonantSynth.triggerAttackRelease(
dissonantNote,
mainSpacing / 5,
time + mainSpacing / 15
);
}
},
scaledMelody.map((n, i) => ({
time: i * (1.25 / scaledMelody.length),
note: n,
}))
).start(time);
}
public isMuted(): boolean {
return this.volume.mute;
}
public mute(): void {
this.volume.mute = true;
}
public unMute(): void {
this.volume.mute = false;
}
}