bis
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@ -1,6 +1,5 @@
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// 1. Sélection des éléments du DOM
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const vinyl = document.getElementById('vinyl');
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const originalSrc = audio.getAttribute('src');
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const audio = document.getElementById('audio');
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const progress = document.getElementById('progress');
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const currentTimeEl = document.getElementById('currentTime');
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@ -15,25 +14,26 @@ let isLooping = false;
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let idleTimeout = null;
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let reverseInterval = null;
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let reverseAudioLoaded = false;
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const reverseSrc = audio.dataset.reverseSrc;
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// 3. Variables pour calculer la vitesse de rotation
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// 3. Variables pour vitesse
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let lastPosition = null;
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let lastTime = null;
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// 4. Connexion Socket.io
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// 4. Connexion socket
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const socket = io();
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// 5. Sauvegarder les sources
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const originalSrc = audio.getAttribute('src');
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const reverseSrc = audio.dataset.reverseSrc || null;
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// 6. SOCKET – gestion de la position envoyée
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socket.on('position', (position) => {
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const now = Date.now();
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if (lastPosition !== null && lastTime !== null) {
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const deltaPos = position - lastPosition;
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const deltaTime = (now - lastTime) / 1000;
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const speed = deltaPos / deltaTime;
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console.log('instant speed:', speed);
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clearTimeout(idleTimeout);
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@ -44,7 +44,6 @@ socket.on('position', (position) => {
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const isReverse = speed < 0;
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// Simuler reverse
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if (isReverse) {
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simulateReverse(Math.abs(speed));
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} else {
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@ -53,19 +52,17 @@ socket.on('position', (position) => {
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playbackSpeed = Math.max(0.5, Math.min(1.5, playbackSpeed));
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controlPlayback(playbackSpeed);
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}
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}
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lastPosition = position;
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lastTime = now;
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// Détecter l'inactivité : si pas de mise à jour pendant 300ms → stop
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idleTimeout = setTimeout(() => {
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stopPlayback();
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}, 300);
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});
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// 5. Fonctions
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// 7. Fonctions
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function togglePlay() {
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if (isPlaying) {
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@ -97,10 +94,8 @@ function setProgress(e) {
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audio.currentTime = (clickX / width) * duration;
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}
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// Fonction pour régler la lecture selon la vitesse
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function controlPlayback(speed) {
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stopReverse(); // On stoppe le reverse si actif
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stopReverse();
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if (speed > 0) {
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if (!isPlaying) {
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audio.play();
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@ -117,18 +112,11 @@ function stopPlayback() {
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isPlaying = false;
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}
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// Simule la lecture en reverse via décrémentation du currentTime
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function simulateReverse(speed) {
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const reverseSpeed = Math.min(speed * 0.01, 2); // seconds per step
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const reverseSpeed = Math.min(speed * 0.01, 2);
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if (!reverseAudioLoaded && reverseSrc) {
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audio.src = reverseSrc;
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audio.load();
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reverseAudioLoaded = true;
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audio.addEventListener('loadedmetadata', () => {
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audio.currentTime = audio.duration - 0.1; // start from the end
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}, { once: true });
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return; // attend que le fichier soit chargé
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}
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if (!reverseSrc) return;
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if (!reverseInterval) {
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reverseInterval = setInterval(() => {
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@ -140,12 +128,20 @@ function simulateReverse(speed) {
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}
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}, 100);
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if (!isPlaying) {
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isPlaying = true;
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}
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if (!reverseAudioLoaded) {
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const currentTime = audio.currentTime;
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audio.src = reverseSrc;
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audio.load();
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audio.addEventListener('loadedmetadata', () => {
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const newTime = Math.min(currentTime, audio.duration - 0.1);
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audio.currentTime = newTime;
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}, { once: true });
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reverseAudioLoaded = true;
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}
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audio.pause(); // on met en pause le vrai son pour éviter conflit
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isPlaying = true;
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audio.pause();
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}
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}
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function stopReverse() {
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@ -165,9 +161,7 @@ function stopReverse() {
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}
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}
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// 6. Événements
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// 8. Événements utilisateur
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vinyl.addEventListener('click', togglePlay);
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audio.addEventListener('timeupdate', updateProgress);
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