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Session 5: Prestige System with Stellar Essence

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hermes
2026-08-20 13:43:23 +00:00
parent f18ef5c396
commit 3ee33ee43f
7 changed files with 769 additions and 88 deletions
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js/audio.js
+132 -84
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@@ -1,119 +1,167 @@
/**
* Cosmic Garden - Audio System
* Web Audio API-based sound generation (no external assets needed)
* Sound effects using Web Audio API (no external assets needed)
*/
const Audio = {
ctx: null,
enabled: true,
/**
* Initialize audio context (must be called after user interaction)
* Initialize audio context
*/
init() {
try {
window.AudioContext = window.AudioContext || window.webkitAudioContext;
this.ctx = new AudioContext();
console.log('🔊 Audio system initialized');
this.ctx = new (window.AudioContext || window.webkitAudioContext)();
} catch (e) {
console.warn('Web Audio API not supported');
this.enabled = false;
console.log('Web Audio API not supported');
}
},
/**
* Resume audio context (for browsers that suspend it)
* Resume audio context (needed for some browsers)
*/
resume() {
if (this.ctx && this.ctx.state === 'suspended') {
this.ctx.resume();
}
},
/**
* Create a simple tone
* Play click sound - rising C-major arpeggio
*/
playTone(frequency, duration, type = 'sine', volume = 0.1) {
if (!this.enabled || !this.ctx) return;
playClick() {
if (!this.ctx) return;
this.resume();
const now = this.ctx.currentTime;
const notes = [523.25, 659.25, 783.99]; // C5, E5, G5
notes.forEach((freq, i) => {
const osc = this.ctx.createOscillator();
const gain = this.ctx.createGain();
osc.connect(gain);
gain.connect(this.ctx.destination);
osc.frequency.value = freq;
osc.type = 'sine';
gain.gain.setValueAtTime(0.1, now + i * 0.05);
gain.gain.exponentialRampToValueAtTime(0.01, now + i * 0.05 + 0.15);
osc.start(now + i * 0.05);
osc.stop(now + i * 0.05 + 0.15);
});
},
/**
* Play purchase sound - descending chime
*/
playPurchase() {
if (!this.ctx) return;
this.resume();
const now = this.ctx.currentTime;
const notes = [783.99, 659.25, 523.25]; // G5, E5, C5
notes.forEach((freq, i) => {
const osc = this.ctx.createOscillator();
const gain = this.ctx.createGain();
osc.connect(gain);
gain.connect(this.ctx.destination);
osc.frequency.value = freq;
osc.type = 'triangle';
gain.gain.setValueAtTime(0.15, now + i * 0.08);
gain.gain.exponentialRampToValueAtTime(0.01, now + i * 0.08 + 0.2);
osc.start(now + i * 0.08);
osc.stop(now + i * 0.08 + 0.2);
});
},
/**
* Play achievement sound - ascending chord fanfare
*/
playAchievement() {
if (!this.ctx) return;
this.resume();
const now = this.ctx.currentTime;
const chords = [
[523.25, 659.25, 783.99], // C major
[659.25, 783.99, 987.77], // E major
[783.99, 987.77, 1174.66] // G major
];
chords.forEach((chord, chordIndex) => {
chord.forEach(freq => {
const osc = this.ctx.createOscillator();
const gain = this.ctx.createGain();
osc.connect(gain);
gain.connect(this.ctx.destination);
osc.frequency.value = freq;
osc.type = 'sine';
const startTime = now + chordIndex * 0.15;
gain.gain.setValueAtTime(0.12, startTime);
gain.gain.exponentialRampToValueAtTime(0.01, startTime + 0.3);
osc.start(startTime);
osc.stop(startTime + 0.3);
});
});
},
/**
* Play prestige sound - ethereal whoosh
*/
playPrestige() {
if (!this.ctx) return;
this.resume();
const now = this.ctx.currentTime;
// Rising sweep
const osc = this.ctx.createOscillator();
const gain = this.ctx.createGain();
osc.type = type;
osc.frequency.setValueAtTime(frequency, this.ctx.currentTime);
gain.gain.setValueAtTime(volume, this.ctx.currentTime);
gain.gain.exponentialRampToValueAtTime(0.01, this.ctx.currentTime + duration);
osc.connect(gain);
gain.connect(this.ctx.destination);
osc.start(this.ctx.currentTime);
osc.stop(this.ctx.currentTime + duration);
},
/**
* Play a rising arpeggio (for clicks)
*/
playClick() {
if (!this.enabled) return;
this.resume();
osc.type = 'sine';
osc.frequency.setValueAtTime(200, now);
osc.frequency.exponentialRampToValueAtTime(800, now + 0.5);
const now = this.ctx.currentTime;
const notes = [523.25, 659.25, 783.99]; // C major chord
gain.gain.setValueAtTime(0.2, now);
gain.gain.exponentialRampToValueAtTime(0.01, now + 0.8);
notes.forEach((freq, i) => {
setTimeout(() => {
this.playTone(freq, 0.1, 'sine', 0.08);
}, i * 30);
});
},
/**
* Play a purchase sound (descending chime)
*/
playPurchase() {
if (!this.enabled) return;
this.resume();
const notes = [783.99, 659.25, 523.25]; // G - E - C
notes.forEach((freq, i) => {
setTimeout(() => {
this.playTone(freq, 0.15, 'triangle', 0.1);
}, i * 50);
});
},
/**
* Play an achievement unlock fanfare
*/
playAchievement() {
if (!this.enabled) return;
this.resume();
const notes = [523.25, 659.25, 783.99, 1046.50]; // C - E - G - C (high)
notes.forEach((freq, i) => {
setTimeout(() => {
this.playTone(freq, 0.2, 'square', 0.06);
}, i * 80);
});
},
/**
* Play a notification sound
*/
playNotification() {
if (!this.enabled) return;
this.resume();
this.playTone(880, 0.1, 'sine', 0.08);
setTimeout(() => {
this.playTone(1100, 0.15, 'sine', 0.08);
}, 100);
osc.start(now);
osc.stop(now + 0.8);
// Sparkle overlay
for (let i = 0; i < 5; i++) {
const sparkle = this.ctx.createOscillator();
const sparkleGain = this.ctx.createGain();
sparkle.connect(sparkleGain);
sparkleGain.connect(this.ctx.destination);
sparkle.frequency.value = 1200 + Math.random() * 800;
sparkle.type = 'sine';
const startTime = now + 0.1 + i * 0.1;
sparkleGain.gain.setValueAtTime(0.08, startTime);
sparkleGain.gain.exponentialRampToValueAtTime(0.01, startTime + 0.2);
sparkle.start(startTime);
sparkle.stop(startTime + 0.2);
}
}
};
// Make globally accessible
window.Audio = Audio;