GameInit

public/sounds.js

@@ -0,0 +1,130 @@
+/**
+ * Star Wars Hearthstone - Web Audio sound effects
+ */
+(function (global) {
+  'use strict';
+
+  let ctx = null;
+
+  function init() {
+    if (ctx) {
+      if (ctx.state === 'suspended') ctx.resume().catch(function () {});
+      return ctx;
+    }
+    try {
+      ctx = new (global.AudioContext || global.webkitAudioContext)();
+    } catch (e) {
+      return null;
+    }
+    return ctx;
+  }
+
+  function beep(freq, duration, type, vol) {
+    const c = init();
+    if (!c) return;
+    const osc = c.createOscillator();
+    const gain = c.createGain();
+    osc.connect(gain);
+    gain.connect(c.destination);
+    osc.frequency.value = freq;
+    osc.type = type || 'sine';
+    gain.gain.setValueAtTime(vol ?? 0.15, c.currentTime);
+    gain.gain.exponentialRampToValueAtTime(0.001, c.currentTime + duration);
+    osc.start(c.currentTime);
+    osc.stop(c.currentTime + duration);
+  }
+
+  function playCard() {
+    const c = init();
+    if (!c) return;
+    const osc = c.createOscillator();
+    const gain = c.createGain();
+    osc.connect(gain);
+    gain.connect(c.destination);
+    osc.type = 'sine';
+    osc.frequency.setValueAtTime(523, c.currentTime);
+    osc.frequency.exponentialRampToValueAtTime(784, c.currentTime + 0.08);
+    gain.gain.setValueAtTime(0.12, c.currentTime);
+    gain.gain.exponentialRampToValueAtTime(0.001, c.currentTime + 0.15);
+    osc.start(c.currentTime);
+    osc.stop(c.currentTime + 0.15);
+  }
+
+  function attack() {
+    const c = init();
+    if (!c) return;
+    const osc = c.createOscillator();
+    const gain = c.createGain();
+    osc.connect(gain);
+    gain.connect(c.destination);
+    osc.type = 'square';
+    osc.frequency.value = 180;
+    gain.gain.setValueAtTime(0.08, c.currentTime);
+    gain.gain.exponentialRampToValueAtTime(0.001, c.currentTime + 0.12);
+    osc.start(c.currentTime);
+    osc.stop(c.currentTime + 0.12);
+  }
+
+  function endTurn() {
+    beep(392, 0.06, 'sine', 0.1);
+    setTimeout(() => beep(523, 0.08, 'sine', 0.08), 80);
+  }
+
+  function victory() {
+    const notes = [523, 659, 784, 1047];
+    notes.forEach((f, i) => {
+      setTimeout(() => beep(f, 0.25, 'sine', 0.12), i * 120);
+    });
+  }
+
+  function defeat() {
+    const notes = [392, 349, 294];
+    notes.forEach((f, i) => {
+      setTimeout(() => beep(f, 0.2, 'sine', 0.1), i * 150);
+    });
+  }
+
+  function drawCard() {
+    beep(440, 0.06, 'sine', 0.08);
+  }
+
+  function hoverCard() {
+    beep(600, 0.04, 'sine', 0.05);
+  }
+
+  function timerWarning() {
+    const c = init();
+    if (!c) return;
+    const osc = c.createOscillator();
+    const gain = c.createGain();
+    osc.connect(gain);
+    gain.connect(c.destination);
+    osc.type = 'sawtooth';
+    osc.frequency.setValueAtTime(220, c.currentTime);
+    osc.frequency.exponentialRampToValueAtTime(440, c.currentTime + 0.15);
+    gain.gain.setValueAtTime(0.08, c.currentTime);
+    gain.gain.exponentialRampToValueAtTime(0.001, c.currentTime + 0.2);
+    osc.start(c.currentTime);
+    osc.stop(c.currentTime + 0.2);
+  }
+
+  function timerEnd() {
+    const notes = [262, 330, 392];
+    notes.forEach((f, i) => {
+      setTimeout(() => beep(f, 0.1, 'square', 0.08), i * 80);
+    });
+  }
+
+  global.Sounds = {
+    init,
+    playCard,
+    attack,
+    endTurn,
+    victory,
+    defeat,
+    drawCard,
+    hoverCard,
+    timerWarning,
+    timerEnd,
+  };
+})(typeof window !== 'undefined' ? window : globalThis);