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Load piano Enter-demo from external recording JSON

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Jage9
2026-02-23 01:35:46 -05:00
parent 01ec672693
commit 0f616a3fe8
3 changed files with 100 additions and 70 deletions
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164
client/src/main.ts
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@@ -112,49 +112,19 @@ const PIANO_SHARP_KEY_MIDI_BY_CODE: Record<string, number> = {
KeyP: 75,
BracketRight: 78,
};
const PIANO_DEMO_STEPS_F_MAJOR: Array<{ midi: number; durationMs: number; gapMs: number }> = [
// "Yama no Ongakuka" / "Das Lied vom Musikanten" core melody in F major.
{ midi: 65, durationMs: 240, gapMs: 40 }, // F4
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 72, durationMs: 240, gapMs: 60 }, // C5
{ midi: 72, durationMs: 240, gapMs: 40 }, // C5
{ midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
{ midi: 69, durationMs: 240, gapMs: 60 }, // A4
{ midi: 67, durationMs: 240, gapMs: 40 }, // G4
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 65, durationMs: 240, gapMs: 60 }, // F4
{ midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
{ midi: 72, durationMs: 240, gapMs: 60 }, // C5
{ midi: 72, durationMs: 240, gapMs: 40 }, // C5
{ midi: 74, durationMs: 240, gapMs: 40 }, // D5
{ midi: 72, durationMs: 240, gapMs: 60 }, // C5
{ midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 67, durationMs: 240, gapMs: 60 }, // G4
{ midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
{ midi: 72, durationMs: 240, gapMs: 40 }, // C5
{ midi: 72, durationMs: 240, gapMs: 40 }, // C5
{ midi: 74, durationMs: 240, gapMs: 60 }, // D5
{ midi: 65, durationMs: 240, gapMs: 40 }, // F4
{ midi: 65, durationMs: 240, gapMs: 40 }, // F4
{ midi: 65, durationMs: 240, gapMs: 60 }, // F4
{ midi: 67, durationMs: 240, gapMs: 40 }, // G4
{ midi: 65, durationMs: 240, gapMs: 40 }, // F4
{ midi: 64, durationMs: 240, gapMs: 60 }, // E4
{ midi: 65, durationMs: 480, gapMs: 120 }, // F4 (held)
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
{ midi: 72, durationMs: 240, gapMs: 60 }, // C5
{ midi: 72, durationMs: 240, gapMs: 40 }, // C5
{ midi: 74, durationMs: 240, gapMs: 40 }, // D5
{ midi: 72, durationMs: 240, gapMs: 60 }, // C5
{ midi: 70, durationMs: 240, gapMs: 40 }, // Bb4
{ midi: 69, durationMs: 240, gapMs: 40 }, // A4
{ midi: 67, durationMs: 240, gapMs: 60 }, // G4
{ midi: 65, durationMs: 520, gapMs: 140 }, // F4 (held, phrase ending)
];
type PianoDemoEvent = {
t: number;
keyId: string;
midi: number;
on: boolean;
instrument?: string;
voiceMode?: 'mono' | 'poly';
attack?: number;
decay?: number;
release?: number;
brightness?: number;
emitRange?: number;
};
declare global {
interface Window {
@@ -320,7 +290,8 @@ let activePianoMonophonicKey: string | null = null;
let activePianoDemoRunToken = 0;
let activePianoDemoItemId: string | null = null;
const activePianoDemoTimeoutIds: number[] = [];
const activePianoDemoNotes = new Map<string, number>();
const activePianoDemoNotes = new Map<string, { runtimeKey: string; midi: number }>();
let pianoDemoEvents: PianoDemoEvent[] = [];
const activeRemotePianoKeys = new Set<string>();
let pianoPreviewTimeoutId: number | null = null;
let activeTeleport:
@@ -375,6 +346,7 @@ loadMicInputGain();
loadMasterVolume();
void loadHelp();
void loadPianoHelp();
void loadPianoDemo();
void loadChangelog();
/** Fetches a required DOM element and casts it to the requested element type. */
@@ -491,6 +463,45 @@ async function loadPianoHelp(): Promise<void> {
}
}
/** Loads piano demo note events from `piano_demo.json` for Enter-key demo playback. */
async function loadPianoDemo(): Promise<void> {
try {
const response = await fetch(withBase('piano_demo.json'), { cache: 'no-store' });
if (!response.ok) {
return;
}
const data = (await response.json()) as { recording?: unknown };
const rawEvents = Array.isArray(data.recording) ? data.recording : [];
const parsed: PianoDemoEvent[] = [];
for (const entry of rawEvents) {
if (!entry || typeof entry !== 'object') continue;
const record = entry as Record<string, unknown>;
const t = Number(record.t);
const midi = Number(record.midi);
const keyId = String(record.keyId ?? '').trim();
const on = record.on === true;
if (!Number.isFinite(t) || !Number.isFinite(midi) || !keyId) continue;
parsed.push({
t: Math.max(0, Math.round(t)),
keyId: keyId.slice(0, 32),
midi: Math.max(0, Math.min(127, Math.round(midi))),
on,
instrument: typeof record.instrument === 'string' ? record.instrument : undefined,
voiceMode: record.voiceMode === 'mono' ? 'mono' : record.voiceMode === 'poly' ? 'poly' : undefined,
attack: Number.isFinite(Number(record.attack)) ? Math.max(0, Math.min(100, Math.round(Number(record.attack)))) : undefined,
decay: Number.isFinite(Number(record.decay)) ? Math.max(0, Math.min(100, Math.round(Number(record.decay)))) : undefined,
release: Number.isFinite(Number(record.release)) ? Math.max(0, Math.min(100, Math.round(Number(record.release)))) : undefined,
brightness: Number.isFinite(Number(record.brightness)) ? Math.max(0, Math.min(100, Math.round(Number(record.brightness)))) : undefined,
emitRange: Number.isFinite(Number(record.emitRange)) ? Math.max(5, Math.min(20, Math.round(Number(record.emitRange)))) : undefined,
});
}
parsed.sort((a, b) => a.t - b.t);
pianoDemoEvents = parsed;
} catch {
// Demo remains unavailable if loading/parsing fails.
}
}
/** Renders changelog sections into the collapsible updates panel. */
function renderChangelog(changelog: ChangelogData): void {
dom.updatesPanel.innerHTML = '';
@@ -1035,13 +1046,13 @@ function stopPianoDemo(sendNoteOff = true): boolean {
}
}
const itemId = activePianoDemoItemId;
for (const [keyId, midi] of Array.from(activePianoDemoNotes.entries())) {
pianoSynth.noteOff(keyId);
if (sendNoteOff && itemId && Number.isFinite(midi)) {
signaling.send({ type: 'item_piano_note', itemId, keyId, midi, on: false });
for (const [logicalKey, note] of Array.from(activePianoDemoNotes.entries())) {
pianoSynth.noteOff(note.runtimeKey);
if (sendNoteOff && itemId && Number.isFinite(note.midi)) {
signaling.send({ type: 'item_piano_note', itemId, keyId: note.runtimeKey, midi: note.midi, on: false });
}
activePianoDemoNotes.delete(logicalKey);
}
activePianoDemoNotes.clear();
activePianoDemoItemId = null;
return hadActiveDemo;
}
@@ -1049,31 +1060,46 @@ function stopPianoDemo(sendNoteOff = true): boolean {
/** Starts the built-in piano demo sequence from the beginning. */
function startPianoDemo(item: WorldItem, itemId: string): void {
stopPianoDemo(true);
if (pianoDemoEvents.length === 0) {
updateStatus('demo unavailable');
audio.sfxUiCancel();
return;
}
const runToken = activePianoDemoRunToken;
activePianoDemoItemId = itemId;
let atMs = 0;
for (let index = 0; index < PIANO_DEMO_STEPS_F_MAJOR.length; index += 1) {
const step = PIANO_DEMO_STEPS_F_MAJOR[index]!;
const startTimeoutId = window.setTimeout(() => {
for (let index = 0; index < pianoDemoEvents.length; index += 1) {
const event = pianoDemoEvents[index]!;
const timeoutId = window.setTimeout(() => {
if (runToken !== activePianoDemoRunToken) return;
const liveItem = state.items.get(itemId);
if (!liveItem || liveItem.type !== 'piano') return;
const liveConfig = getPianoParams(liveItem);
const midi = Math.max(0, Math.min(127, step.midi + liveConfig.octave * 12));
const keyId = `__piano_demo_${runToken}_${index}`;
activePianoDemoNotes.set(keyId, midi);
playLocalPianoNote(liveItem, itemId, keyId, midi, liveConfig);
const stopTimeoutId = window.setTimeout(() => {
if (runToken !== activePianoDemoRunToken) return;
if (!activePianoDemoNotes.has(keyId)) return;
activePianoDemoNotes.delete(keyId);
pianoSynth.noteOff(keyId);
signaling.send({ type: 'item_piano_note', itemId, keyId, midi, on: false });
}, step.durationMs);
activePianoDemoTimeoutIds.push(stopTimeoutId);
}, atMs);
activePianoDemoTimeoutIds.push(startTimeoutId);
atMs += step.durationMs + step.gapMs;
const baseConfig = getPianoParams(liveItem);
const config = {
instrument: event.instrument ? normalizePianoInstrument(event.instrument) : baseConfig.instrument,
voiceMode: event.voiceMode ?? baseConfig.voiceMode,
octave: 0,
attack: event.attack ?? baseConfig.attack,
decay: event.decay ?? baseConfig.decay,
release: event.release ?? baseConfig.release,
brightness: event.brightness ?? baseConfig.brightness,
emitRange: event.emitRange ?? baseConfig.emitRange,
} as ReturnType<typeof getPianoParams>;
const logicalKey = event.keyId;
const runtimeKey = `__piano_demo_${logicalKey}`;
if (event.on) {
if (activePianoDemoNotes.has(logicalKey)) return;
activePianoDemoNotes.set(logicalKey, { runtimeKey, midi: event.midi });
playLocalPianoNote(liveItem, itemId, runtimeKey, event.midi, config);
} else {
const active = activePianoDemoNotes.get(logicalKey);
if (active) {
activePianoDemoNotes.delete(logicalKey);
pianoSynth.noteOff(active.runtimeKey);
signaling.send({ type: 'item_piano_note', itemId, keyId: active.runtimeKey, midi: active.midi, on: false });
}
}
}, event.t);
activePianoDemoTimeoutIds.push(timeoutId);
}
}