add: ajout de la fonction d'instruction vocale

client/js/guideVoice.js

@@ -0,0 +1,12 @@
+/*
+  guideVoice.js
+
+  vocalise les instructions recue du serveur via la synthese vocal du navigateur
+*/
+
+export function speakInstruction(texte) {
+  speechSynthesis.cancel();
+  const enonce = new SpeechSynthesisUtterance(texte);
+  enonce.lang = "fr-FR";
+  speechSynthesis.speak(enonce);
+}

server/guideInstruction.js

@@ -0,0 +1,27 @@
+/*
+  guideInstruction.js
+
+  sert a envoyer au client guide les instructions
+*/
+
+const INSTRUCTION_GUIDE = "instruction";
+const INSTRUCTION_INTERVAL_MS = 5000;
+
+
+function startInstructionLoop(wSS, socket, partnerSocket, pairState, getInstructionTexte) {
+  const interval = setInterval(() => {
+    if (pairState.gameOver) {
+      clearInterval(interval);
+      return;
+    }
+
+    const guideSocket = socket.data.role === "guide" ? socket : partnerSocket;
+
+    const texte = getInstructionText();
+    guideSocket.emit(INSTRUCTION_GUIDE, { texte });
+  }, INSTRUCTION_INTERVAL_MS);
+
+  return () => clearInterval(interval);
+}
+
+module.exports = { startInstructionLoop };