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Running
File size: 5,098 Bytes
80d8c84 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 | let ctx: AudioContext | null = null;
function getCtx(): AudioContext {
if (!ctx) ctx = new AudioContext();
if (ctx.state === 'suspended') ctx.resume();
return ctx;
}
function playTone(
freq: number,
duration: number,
type: OscillatorType = 'sine',
volume = 0.15,
rampDown = true,
) {
const ac = getCtx();
const osc = ac.createOscillator();
const gain = ac.createGain();
osc.type = type;
osc.frequency.value = freq;
gain.gain.value = volume;
if (rampDown) gain.gain.exponentialRampToValueAtTime(0.001, ac.currentTime + duration);
osc.connect(gain).connect(ac.destination);
osc.start();
osc.stop(ac.currentTime + duration);
}
function playNoise(duration: number, volume = 0.04) {
const ac = getCtx();
const bufferSize = ac.sampleRate * duration;
const buffer = ac.createBuffer(1, bufferSize, ac.sampleRate);
const data = buffer.getChannelData(0);
for (let i = 0; i < bufferSize; i++) data[i] = (Math.random() * 2 - 1) * 0.5;
const src = ac.createBufferSource();
src.buffer = buffer;
const gain = ac.createGain();
gain.gain.value = volume;
gain.gain.exponentialRampToValueAtTime(0.001, ac.currentTime + duration);
const filter = ac.createBiquadFilter();
filter.type = 'highpass';
filter.frequency.value = 4000;
src.connect(filter).connect(gain).connect(ac.destination);
src.start();
}
// Mute control
let _muted = false;
export function isMuted() { return _muted; }
export function setMuted(v: boolean) { _muted = v; }
export function toggleMute() { _muted = !_muted; return _muted; }
function guard(fn: () => void) {
if (!_muted) fn();
}
// Ambient lab hum (low drone)
let ambientOsc: OscillatorNode | null = null;
let ambientGain: GainNode | null = null;
export function startAmbient() {
if (ambientOsc || _muted) return;
const ac = getCtx();
ambientOsc = ac.createOscillator();
ambientGain = ac.createGain();
ambientOsc.type = 'sine';
ambientOsc.frequency.value = 80;
ambientGain.gain.value = 0.015;
// Add slight modulation for realism
const lfo = ac.createOscillator();
const lfoGain = ac.createGain();
lfo.type = 'sine';
lfo.frequency.value = 0.3;
lfoGain.gain.value = 5;
lfo.connect(lfoGain).connect(ambientOsc.frequency);
lfo.start();
ambientOsc.connect(ambientGain).connect(ac.destination);
ambientOsc.start();
}
export function stopAmbient() {
try {
ambientOsc?.stop();
} catch { /* ignore */ }
ambientOsc = null;
ambientGain = null;
}
export const sfx = {
episodeStart() {
guard(() => {
playTone(523, 0.15, 'sine', 0.12);
setTimeout(() => playTone(659, 0.15, 'sine', 0.12), 100);
setTimeout(() => playTone(784, 0.25, 'sine', 0.10), 200);
});
},
scientistSpeak() {
guard(() => {
playTone(440, 0.08, 'triangle', 0.06);
setTimeout(() => playTone(520, 0.08, 'triangle', 0.05), 60);
setTimeout(() => playTone(480, 0.12, 'triangle', 0.04), 120);
});
},
labManagerSpeak() {
guard(() => {
playTone(330, 0.08, 'square', 0.04);
setTimeout(() => playTone(350, 0.10, 'square', 0.04), 70);
setTimeout(() => playTone(310, 0.12, 'square', 0.03), 140);
});
},
judgeAppear() {
guard(() => {
playTone(220, 0.3, 'sawtooth', 0.06);
playTone(330, 0.3, 'sawtooth', 0.05);
setTimeout(() => {
playTone(440, 0.4, 'sine', 0.10);
playTone(554, 0.4, 'sine', 0.07);
}, 200);
});
},
gavel() {
guard(() => {
playNoise(0.08, 0.12);
playTone(180, 0.15, 'square', 0.10);
setTimeout(() => {
playNoise(0.06, 0.08);
playTone(160, 0.2, 'square', 0.08);
}, 250);
});
},
scoreReveal() {
guard(() => {
const notes = [523, 587, 659, 784];
notes.forEach((f, i) => {
setTimeout(() => playTone(f, 0.18, 'sine', 0.08), i * 90);
});
});
},
success() {
guard(() => {
playTone(523, 0.12, 'sine', 0.10);
setTimeout(() => playTone(659, 0.12, 'sine', 0.10), 120);
setTimeout(() => playTone(784, 0.12, 'sine', 0.10), 240);
setTimeout(() => playTone(1047, 0.3, 'sine', 0.12), 360);
});
},
failure() {
guard(() => {
playTone(400, 0.2, 'sawtooth', 0.07);
setTimeout(() => playTone(350, 0.2, 'sawtooth', 0.07), 200);
setTimeout(() => playTone(300, 0.4, 'sawtooth', 0.06), 400);
});
},
click() {
guard(() => playTone(800, 0.04, 'square', 0.05));
},
roundTick() {
guard(() => playTone(1200, 0.05, 'sine', 0.06));
},
negotiate() {
guard(() => {
playTone(392, 0.1, 'triangle', 0.05);
setTimeout(() => playTone(440, 0.1, 'triangle', 0.05), 80);
});
},
// New: typing sound for message streaming effect
typeChar() {
guard(() => playTone(1400, 0.02, 'square', 0.02));
},
// New: protocol change notification
protocolChange() {
guard(() => {
playTone(600, 0.08, 'sine', 0.06);
setTimeout(() => playTone(750, 0.08, 'sine', 0.06), 80);
});
},
// New: auto-play tick
autoTick() {
guard(() => playTone(900, 0.03, 'triangle', 0.04));
},
};
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