| 1 | // Web Audio API sound synthesis for dougk |
| 2 | |
| 3 | let audioContext = null |
| 4 | let unlocked = false |
| 5 | |
| 6 | function getContext() { |
| 7 | if (!audioContext) { |
| 8 | audioContext = new (window.AudioContext || window.webkitAudioContext)() |
| 9 | } |
| 10 | return audioContext |
| 11 | } |
| 12 | |
| 13 | // Must be called on first user interaction to enable audio on mobile |
| 14 | export function unlockAudio() { |
| 15 | if (unlocked) return |
| 16 | unlocked = true // Set immediately to prevent multiple attempts |
| 17 | |
| 18 | // Create context fresh during user gesture (mobile requirement) |
| 19 | if (!audioContext) { |
| 20 | audioContext = new (window.AudioContext || window.webkitAudioContext)() |
| 21 | } |
| 22 | |
| 23 | const ctx = audioContext |
| 24 | |
| 25 | // Resume synchronously - don't wait for promise |
| 26 | if (ctx.state === 'suspended') { |
| 27 | ctx.resume() |
| 28 | } |
| 29 | |
| 30 | // Immediately play a sound to force audio pipeline open |
| 31 | // Must happen synchronously in the user gesture |
| 32 | try { |
| 33 | const osc = ctx.createOscillator() |
| 34 | const gain = ctx.createGain() |
| 35 | |
| 36 | osc.type = 'triangle' |
| 37 | osc.frequency.value = 200 |
| 38 | gain.gain.value = 0.001 // Nearly silent |
| 39 | |
| 40 | osc.connect(gain) |
| 41 | gain.connect(ctx.destination) |
| 42 | |
| 43 | osc.start(0) |
| 44 | osc.stop(ctx.currentTime + 0.1) |
| 45 | } catch (e) { |
| 46 | console.warn('Unlock sound failed:', e) |
| 47 | } |
| 48 | } |
| 49 | |
| 50 | // Damp crunch sound - wet bread being chomped |
| 51 | export function playMonch() { |
| 52 | const ctx = getContext() |
| 53 | |
| 54 | // Try to resume if needed, but don't block |
| 55 | if (ctx.state === 'suspended') { |
| 56 | ctx.resume() |
| 57 | } |
| 58 | |
| 59 | const now = ctx.currentTime |
| 60 | |
| 61 | // Master output - keep it gentle |
| 62 | const master = ctx.createGain() |
| 63 | master.gain.value = 0.25 |
| 64 | master.connect(ctx.destination) |
| 65 | |
| 66 | // High-pass to remove speaker-popping low frequencies |
| 67 | const highPass = ctx.createBiquadFilter() |
| 68 | highPass.type = 'highpass' |
| 69 | highPass.frequency.value = 150 |
| 70 | highPass.connect(master) |
| 71 | |
| 72 | // Create multiple small crunch "grains" for texture |
| 73 | const grainCount = 5 |
| 74 | for (let i = 0; i < grainCount; i++) { |
| 75 | const delay = i * 0.018 + Math.random() * 0.01 |
| 76 | const grainTime = now + delay |
| 77 | |
| 78 | // Each grain is a short filtered noise burst |
| 79 | const grainLength = 0.04 + Math.random() * 0.03 |
| 80 | const bufferSize = Math.floor(ctx.sampleRate * grainLength) |
| 81 | const noiseBuffer = ctx.createBuffer(1, bufferSize, ctx.sampleRate) |
| 82 | const noiseData = noiseBuffer.getChannelData(0) |
| 83 | |
| 84 | // Softer noise - not full amplitude |
| 85 | for (let j = 0; j < bufferSize; j++) { |
| 86 | noiseData[j] = (Math.random() * 2 - 1) * 0.7 |
| 87 | } |
| 88 | |
| 89 | const grain = ctx.createBufferSource() |
| 90 | grain.buffer = noiseBuffer |
| 91 | |
| 92 | // Bandpass for crunch character - varied per grain |
| 93 | const filter = ctx.createBiquadFilter() |
| 94 | filter.type = 'bandpass' |
| 95 | filter.frequency.value = 300 + Math.random() * 400 |
| 96 | filter.Q.value = 2 + Math.random() * 2 |
| 97 | |
| 98 | // Gentle envelope - no sharp attacks |
| 99 | const env = ctx.createGain() |
| 100 | const peakGain = 0.3 + Math.random() * 0.2 |
| 101 | env.gain.setValueAtTime(0, grainTime) |
| 102 | env.gain.linearRampToValueAtTime(peakGain, grainTime + 0.008) // Soft attack |
| 103 | env.gain.linearRampToValueAtTime(peakGain * 0.6, grainTime + 0.02) |
| 104 | env.gain.linearRampToValueAtTime(0, grainTime + grainLength) // Soft release |
| 105 | |
| 106 | grain.connect(filter) |
| 107 | filter.connect(env) |
| 108 | env.connect(highPass) |
| 109 | |
| 110 | grain.start(grainTime) |
| 111 | grain.stop(grainTime + grainLength) |
| 112 | } |
| 113 | |
| 114 | // Soft muffled "body" of the bite - no harsh transients |
| 115 | const bodyLength = 0.12 |
| 116 | const bodyBuffer = ctx.createBuffer(1, Math.floor(ctx.sampleRate * bodyLength), ctx.sampleRate) |
| 117 | const bodyData = bodyBuffer.getChannelData(0) |
| 118 | for (let i = 0; i < bodyData.length; i++) { |
| 119 | bodyData[i] = (Math.random() * 2 - 1) * 0.5 |
| 120 | } |
| 121 | |
| 122 | const body = ctx.createBufferSource() |
| 123 | body.buffer = bodyBuffer |
| 124 | |
| 125 | // Heavy lowpass for muffled wet sound |
| 126 | const wetFilter = ctx.createBiquadFilter() |
| 127 | wetFilter.type = 'lowpass' |
| 128 | wetFilter.frequency.setValueAtTime(600, now) |
| 129 | wetFilter.frequency.linearRampToValueAtTime(200, now + 0.1) |
| 130 | wetFilter.Q.value = 1 |
| 131 | |
| 132 | const bodyEnv = ctx.createGain() |
| 133 | bodyEnv.gain.setValueAtTime(0, now) |
| 134 | bodyEnv.gain.linearRampToValueAtTime(0.25, now + 0.02) // Gentle attack |
| 135 | bodyEnv.gain.linearRampToValueAtTime(0.15, now + 0.05) |
| 136 | bodyEnv.gain.linearRampToValueAtTime(0, now + bodyLength) |
| 137 | |
| 138 | body.connect(wetFilter) |
| 139 | wetFilter.connect(bodyEnv) |
| 140 | bodyEnv.connect(highPass) |
| 141 | |
| 142 | body.start(now) |
| 143 | body.stop(now + bodyLength) |
| 144 | |
| 145 | // Tonal body - soft pitched "chomp" character |
| 146 | // Primary tone - warm mid frequency |
| 147 | const tone1 = ctx.createOscillator() |
| 148 | tone1.type = 'triangle' |
| 149 | tone1.frequency.setValueAtTime(280, now) |
| 150 | tone1.frequency.linearRampToValueAtTime(180, now + 0.08) |
| 151 | |
| 152 | const tone1Env = ctx.createGain() |
| 153 | tone1Env.gain.setValueAtTime(0, now) |
| 154 | tone1Env.gain.linearRampToValueAtTime(0.12, now + 0.015) // Soft attack |
| 155 | tone1Env.gain.linearRampToValueAtTime(0.06, now + 0.05) |
| 156 | tone1Env.gain.linearRampToValueAtTime(0, now + 0.1) |
| 157 | |
| 158 | tone1.connect(tone1Env) |
| 159 | tone1Env.connect(highPass) |
| 160 | tone1.start(now) |
| 161 | tone1.stop(now + 0.12) |
| 162 | |
| 163 | // Secondary harmonic - adds richness |
| 164 | const tone2 = ctx.createOscillator() |
| 165 | tone2.type = 'sine' |
| 166 | tone2.frequency.setValueAtTime(420, now) |
| 167 | tone2.frequency.linearRampToValueAtTime(300, now + 0.06) |
| 168 | |
| 169 | const tone2Env = ctx.createGain() |
| 170 | tone2Env.gain.setValueAtTime(0, now) |
| 171 | tone2Env.gain.linearRampToValueAtTime(0.06, now + 0.01) |
| 172 | tone2Env.gain.linearRampToValueAtTime(0, now + 0.07) |
| 173 | |
| 174 | tone2.connect(tone2Env) |
| 175 | tone2Env.connect(highPass) |
| 176 | tone2.start(now) |
| 177 | tone2.stop(now + 0.1) |
| 178 | |
| 179 | // Soft low "gulp" undertone - filtered to be safe |
| 180 | const gulp = ctx.createOscillator() |
| 181 | gulp.type = 'sine' |
| 182 | gulp.frequency.setValueAtTime(200, now + 0.02) |
| 183 | gulp.frequency.linearRampToValueAtTime(160, now + 0.1) |
| 184 | |
| 185 | const gulpEnv = ctx.createGain() |
| 186 | gulpEnv.gain.setValueAtTime(0, now) |
| 187 | gulpEnv.gain.linearRampToValueAtTime(0, now + 0.02) // Delayed start |
| 188 | gulpEnv.gain.linearRampToValueAtTime(0.08, now + 0.04) |
| 189 | gulpEnv.gain.linearRampToValueAtTime(0, now + 0.12) |
| 190 | |
| 191 | gulp.connect(gulpEnv) |
| 192 | gulpEnv.connect(highPass) |
| 193 | gulp.start(now) |
| 194 | gulp.stop(now + 0.15) |
| 195 | } |
| 196 | |
| 197 | // Koi capture sound - magical sparkle pop |
| 198 | export function playCapture() { |
| 199 | const ctx = getContext() |
| 200 | if (ctx.state === 'suspended') ctx.resume() |
| 201 | |
| 202 | const now = ctx.currentTime |
| 203 | |
| 204 | const master = ctx.createGain() |
| 205 | master.gain.value = 0.3 |
| 206 | master.connect(ctx.destination) |
| 207 | |
| 208 | // Rising sparkle tones |
| 209 | const notes = [523, 659, 784, 1047] // C5, E5, G5, C6 |
| 210 | notes.forEach((freq, i) => { |
| 211 | const osc = ctx.createOscillator() |
| 212 | osc.type = 'sine' |
| 213 | osc.frequency.value = freq |
| 214 | |
| 215 | const env = ctx.createGain() |
| 216 | const startTime = now + i * 0.05 |
| 217 | env.gain.setValueAtTime(0, startTime) |
| 218 | env.gain.linearRampToValueAtTime(0.15, startTime + 0.02) |
| 219 | env.gain.linearRampToValueAtTime(0, startTime + 0.15) |
| 220 | |
| 221 | osc.connect(env) |
| 222 | env.connect(master) |
| 223 | osc.start(startTime) |
| 224 | osc.stop(startTime + 0.2) |
| 225 | }) |
| 226 | |
| 227 | // Soft pop at the end |
| 228 | const popOsc = ctx.createOscillator() |
| 229 | popOsc.type = 'sine' |
| 230 | popOsc.frequency.setValueAtTime(400, now + 0.15) |
| 231 | popOsc.frequency.linearRampToValueAtTime(200, now + 0.25) |
| 232 | |
| 233 | const popEnv = ctx.createGain() |
| 234 | popEnv.gain.setValueAtTime(0, now + 0.15) |
| 235 | popEnv.gain.linearRampToValueAtTime(0.2, now + 0.17) |
| 236 | popEnv.gain.linearRampToValueAtTime(0, now + 0.3) |
| 237 | |
| 238 | popOsc.connect(popEnv) |
| 239 | popEnv.connect(master) |
| 240 | popOsc.start(now + 0.15) |
| 241 | popOsc.stop(now + 0.35) |
| 242 | } |
| 243 | |
| 244 | // Purchase/coin sound - satisfying cha-ching |
| 245 | export function playPurchase() { |
| 246 | const ctx = getContext() |
| 247 | if (ctx.state === 'suspended') ctx.resume() |
| 248 | |
| 249 | const now = ctx.currentTime |
| 250 | |
| 251 | const master = ctx.createGain() |
| 252 | master.gain.value = 0.25 |
| 253 | master.connect(ctx.destination) |
| 254 | |
| 255 | // High bell tone |
| 256 | const bell1 = ctx.createOscillator() |
| 257 | bell1.type = 'sine' |
| 258 | bell1.frequency.value = 1200 |
| 259 | |
| 260 | const bell1Env = ctx.createGain() |
| 261 | bell1Env.gain.setValueAtTime(0.3, now) |
| 262 | bell1Env.gain.exponentialRampToValueAtTime(0.01, now + 0.3) |
| 263 | |
| 264 | bell1.connect(bell1Env) |
| 265 | bell1Env.connect(master) |
| 266 | bell1.start(now) |
| 267 | bell1.stop(now + 0.35) |
| 268 | |
| 269 | // Second bell tone (slightly delayed) |
| 270 | const bell2 = ctx.createOscillator() |
| 271 | bell2.type = 'sine' |
| 272 | bell2.frequency.value = 1600 |
| 273 | |
| 274 | const bell2Env = ctx.createGain() |
| 275 | bell2Env.gain.setValueAtTime(0, now) |
| 276 | bell2Env.gain.setValueAtTime(0.25, now + 0.08) |
| 277 | bell2Env.gain.exponentialRampToValueAtTime(0.01, now + 0.35) |
| 278 | |
| 279 | bell2.connect(bell2Env) |
| 280 | bell2Env.connect(master) |
| 281 | bell2.start(now) |
| 282 | bell2.stop(now + 0.4) |
| 283 | |
| 284 | // Metallic shimmer (noise burst) |
| 285 | const shimmerLength = 0.15 |
| 286 | const shimmerBuffer = ctx.createBuffer(1, ctx.sampleRate * shimmerLength, ctx.sampleRate) |
| 287 | const shimmerData = shimmerBuffer.getChannelData(0) |
| 288 | for (let i = 0; i < shimmerData.length; i++) { |
| 289 | shimmerData[i] = (Math.random() * 2 - 1) * 0.3 |
| 290 | } |
| 291 | |
| 292 | const shimmer = ctx.createBufferSource() |
| 293 | shimmer.buffer = shimmerBuffer |
| 294 | |
| 295 | const shimmerFilter = ctx.createBiquadFilter() |
| 296 | shimmerFilter.type = 'highpass' |
| 297 | shimmerFilter.frequency.value = 3000 |
| 298 | |
| 299 | const shimmerEnv = ctx.createGain() |
| 300 | shimmerEnv.gain.setValueAtTime(0.15, now) |
| 301 | shimmerEnv.gain.linearRampToValueAtTime(0, now + shimmerLength) |
| 302 | |
| 303 | shimmer.connect(shimmerFilter) |
| 304 | shimmerFilter.connect(shimmerEnv) |
| 305 | shimmerEnv.connect(master) |
| 306 | shimmer.start(now) |
| 307 | shimmer.stop(now + shimmerLength) |
| 308 | } |
| 309 | |
| 310 | // Shop open sound - friendly chime |
| 311 | export function playShopOpen() { |
| 312 | const ctx = getContext() |
| 313 | if (ctx.state === 'suspended') ctx.resume() |
| 314 | |
| 315 | const now = ctx.currentTime |
| 316 | |
| 317 | const master = ctx.createGain() |
| 318 | master.gain.value = 0.2 |
| 319 | master.connect(ctx.destination) |
| 320 | |
| 321 | // Ascending arpeggio - warm and inviting |
| 322 | const notes = [392, 494, 587, 784] // G4, B4, D5, G5 |
| 323 | notes.forEach((freq, i) => { |
| 324 | const osc = ctx.createOscillator() |
| 325 | osc.type = 'triangle' |
| 326 | osc.frequency.value = freq |
| 327 | |
| 328 | const env = ctx.createGain() |
| 329 | const startTime = now + i * 0.08 |
| 330 | env.gain.setValueAtTime(0, startTime) |
| 331 | env.gain.linearRampToValueAtTime(0.2, startTime + 0.03) |
| 332 | env.gain.exponentialRampToValueAtTime(0.01, startTime + 0.4) |
| 333 | |
| 334 | osc.connect(env) |
| 335 | env.connect(master) |
| 336 | osc.start(startTime) |
| 337 | osc.stop(startTime + 0.45) |
| 338 | }) |
| 339 | } |
| 340 | |
| 341 | // Shop close sound - gentle descending tone |
| 342 | export function playShopClose() { |
| 343 | const ctx = getContext() |
| 344 | if (ctx.state === 'suspended') ctx.resume() |
| 345 | |
| 346 | const now = ctx.currentTime |
| 347 | |
| 348 | const master = ctx.createGain() |
| 349 | master.gain.value = 0.15 |
| 350 | master.connect(ctx.destination) |
| 351 | |
| 352 | // Single soft descending tone |
| 353 | const osc = ctx.createOscillator() |
| 354 | osc.type = 'triangle' |
| 355 | osc.frequency.setValueAtTime(600, now) |
| 356 | osc.frequency.linearRampToValueAtTime(400, now + 0.2) |
| 357 | |
| 358 | const env = ctx.createGain() |
| 359 | env.gain.setValueAtTime(0.2, now) |
| 360 | env.gain.linearRampToValueAtTime(0, now + 0.25) |
| 361 | |
| 362 | osc.connect(env) |
| 363 | env.connect(master) |
| 364 | osc.start(now) |
| 365 | osc.stop(now + 0.3) |
| 366 | } |
| 367 | |
| 368 | // Dialog blip sound - for typewriter text |
| 369 | export function playDialogBlip() { |
| 370 | const ctx = getContext() |
| 371 | if (ctx.state === 'suspended') ctx.resume() |
| 372 | |
| 373 | const now = ctx.currentTime |
| 374 | |
| 375 | const osc = ctx.createOscillator() |
| 376 | osc.type = 'square' |
| 377 | osc.frequency.value = 440 + Math.random() * 60 // Slight variation |
| 378 | |
| 379 | const env = ctx.createGain() |
| 380 | env.gain.setValueAtTime(0.08, now) |
| 381 | env.gain.linearRampToValueAtTime(0, now + 0.04) |
| 382 | |
| 383 | const filter = ctx.createBiquadFilter() |
| 384 | filter.type = 'lowpass' |
| 385 | filter.frequency.value = 1000 |
| 386 | |
| 387 | osc.connect(filter) |
| 388 | filter.connect(env) |
| 389 | env.connect(ctx.destination) |
| 390 | osc.start(now) |
| 391 | osc.stop(now + 0.05) |
| 392 | } |
| 393 | |
| 394 | // Placement confirm sound - solid thunk |
| 395 | export function playPlaceBuilding() { |
| 396 | const ctx = getContext() |
| 397 | if (ctx.state === 'suspended') ctx.resume() |
| 398 | |
| 399 | const now = ctx.currentTime |
| 400 | |
| 401 | const master = ctx.createGain() |
| 402 | master.gain.value = 0.25 |
| 403 | master.connect(ctx.destination) |
| 404 | |
| 405 | // Low thump |
| 406 | const thump = ctx.createOscillator() |
| 407 | thump.type = 'sine' |
| 408 | thump.frequency.setValueAtTime(150, now) |
| 409 | thump.frequency.linearRampToValueAtTime(60, now + 0.1) |
| 410 | |
| 411 | const thumpEnv = ctx.createGain() |
| 412 | thumpEnv.gain.setValueAtTime(0.4, now) |
| 413 | thumpEnv.gain.linearRampToValueAtTime(0, now + 0.15) |
| 414 | |
| 415 | thump.connect(thumpEnv) |
| 416 | thumpEnv.connect(master) |
| 417 | thump.start(now) |
| 418 | thump.stop(now + 0.2) |
| 419 | |
| 420 | // Wood knock overtone |
| 421 | const knock = ctx.createOscillator() |
| 422 | knock.type = 'triangle' |
| 423 | knock.frequency.setValueAtTime(300, now) |
| 424 | knock.frequency.linearRampToValueAtTime(200, now + 0.05) |
| 425 | |
| 426 | const knockEnv = ctx.createGain() |
| 427 | knockEnv.gain.setValueAtTime(0.2, now) |
| 428 | knockEnv.gain.linearRampToValueAtTime(0, now + 0.08) |
| 429 | |
| 430 | knock.connect(knockEnv) |
| 431 | knockEnv.connect(master) |
| 432 | knock.start(now) |
| 433 | knock.stop(now + 0.1) |
| 434 | } |