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TamaTac & SfxEngine + Sprite tools (#24)

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Shadowtrance
2026-02-14 06:26:23 +10:00
committed by GitHub
parent 9ba1d460bd
commit 0b22f67a82
56 changed files with 8282 additions and 0 deletions
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Libraries/SfxEngine/Include/SfxDefinitions.h
+601
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/**
* @file SfxDefinitions.h
* @brief 52 curated SFX definitions for SfxEngine.
*
* Implements SfxEngine::loadSound() — mapping SfxId values to note sequences.
*/
#pragma once
#include "SfxEngine.h"
#include "esp_log.h"
// Safety macro to prevent buffer overflow
#define ADD_SFX_NOTE(seq, idx, ...) do { \
if ((idx) < MAX_SFX_NOTES) { \
SfxSequenceNote n = __VA_ARGS__; \
(seq)[(idx)++] = n; \
} else { \
ESP_LOGE("SfxDef", "SFX note overflow at index %d", (idx)); \
} \
} while(0)
inline void SfxEngine::loadSound(SfxId sound) {
sequenceIndex_ = 0;
sequenceDelaySamples_ = 0;
sequenceLength_ = 0;
// Stop all voices
for (int i = 0; i < NUM_VOICES; i++) {
voices_[i].active = false;
voices_[i].envStage = EnvelopeStage::Off;
}
switch (sound) {
// ── UI Sounds ────────────────────────────────────────────────────────
case SfxId::Click:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 80, 30, 0, SfxWaveType::Square, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Confirm:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 80, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 120, 70, SfxWaveType::Square, 0.4f});
sequenceLength_ = i;
}
break;
case SfxId::Cancel:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 80, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 120, 70, SfxWaveType::Square, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Error:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 150, 0, SfxWaveType::Sawtooth, 0.4f});
ADD_SFX_NOTE(sequence_, i, {1, 51, 150, 0, SfxWaveType::Sawtooth, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::MenuOpen:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 40, 0, SfxWaveType::Pulse25, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 60, 30, SfxWaveType::Pulse25, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::MenuClose:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 40, 0, SfxWaveType::Pulse25, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 60, 30, SfxWaveType::Pulse25, 0.2f});
sequenceLength_ = i;
}
break;
case SfxId::Toggle:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 50, 0, SfxWaveType::Pulse12, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Slider:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 15, 0, SfxWaveType::Pulse25, 0.2f});
sequenceLength_ = i;
}
break;
case SfxId::Tab:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 67, 50, 0, SfxWaveType::Square, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 70, 40, SfxWaveType::Square, 0.3f});
sequenceLength_ = i;
}
break;
// ── TamaTac Pet Sounds ───────────────────────────────────────────────
case SfxId::Feed:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 80, 0, SfxWaveType::Pulse25, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 80, 80, SfxWaveType::Pulse25, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 100, 80, SfxWaveType::Pulse25, 0.4f});
sequenceLength_ = i;
}
break;
case SfxId::Play:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 70, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {1, 60, 280, 0, SfxWaveType::Triangle, 0.2f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 70, 70, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 70, 70, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 100, 70, SfxWaveType::Square, 0.35f});
sequenceLength_ = i;
}
break;
case SfxId::Medicine:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 200, 0, SfxWaveType::Triangle, 0.4f});
ADD_SFX_NOTE(sequence_, i, {1, 79, 200, 50, SfxWaveType::Sine, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Sleep:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 79, 200, 0, SfxWaveType::Triangle, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 200, 180, SfxWaveType::Triangle, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 300, 180, SfxWaveType::Triangle, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Clean:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 50, 0, SfxWaveType::Pulse12, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 50, 40, SfxWaveType::Pulse12, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 80, 40, SfxWaveType::Pulse12, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Evolve:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 150, 0, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {1, 48, 600, 0, SfxWaveType::Triangle, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 64, 150, 130, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 67, 150, 130, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 400, 130, SfxWaveType::Square, 0.5f});
sequenceLength_ = i;
}
break;
case SfxId::Sick:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 100, 0, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 100, 150, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 100, 150, SfxWaveType::Square, 0.4f});
sequenceLength_ = i;
}
break;
case SfxId::Death:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 67, 250, 0, SfxWaveType::Triangle, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 64, 250, 220, SfxWaveType::Triangle, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 250, 220, SfxWaveType::Triangle, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 55, 350, 220, SfxWaveType::Triangle, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 48, 500, 300, SfxWaveType::Triangle, 0.2f});
sequenceLength_ = i;
}
break;
// ── Game Sounds ──────────────────────────────────────────────────────
case SfxId::Coin:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 83, 60, 0, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 88, 150, 50, SfxWaveType::Square, 0.35f});
sequenceLength_ = i;
}
break;
case SfxId::Powerup:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 80, 0, SfxWaveType::Pulse25, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 64, 80, 60, SfxWaveType::Pulse25, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 67, 80, 60, SfxWaveType::Pulse25, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 80, 60, SfxWaveType::Pulse25, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 80, 60, SfxWaveType::Pulse25, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 80, 60, SfxWaveType::Pulse25, 0.45f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 200, 60, SfxWaveType::Pulse25, 0.5f});
sequenceLength_ = i;
}
break;
case SfxId::Jump:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 30, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 65, 30, 25, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 70, 30, 25, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 75, 30, 25, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 80, 40, 25, SfxWaveType::Square, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 50, 30, SfxWaveType::Square, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Land:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 36, 80, 0, SfxWaveType::Triangle, 0.5f});
ADD_SFX_NOTE(sequence_, i, {1, 40, 60, 0, SfxWaveType::Noise, 0.15f});
sequenceLength_ = i;
}
break;
case SfxId::Laser:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 96, 25, 0, SfxWaveType::Pulse25, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 90, 25, 20, SfxWaveType::Pulse25, 0.38f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 25, 20, SfxWaveType::Pulse25, 0.36f});
ADD_SFX_NOTE(sequence_, i, {0, 78, 30, 20, SfxWaveType::Pulse25, 0.34f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 40, 25, SfxWaveType::Pulse25, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Explosion:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 50, 0, SfxWaveType::Noise, 0.5f});
ADD_SFX_NOTE(sequence_, i, {1, 30, 300, 0, SfxWaveType::Triangle, 0.45f});
ADD_SFX_NOTE(sequence_, i, {0, 36, 150, 40, SfxWaveType::Noise, 0.45f});
ADD_SFX_NOTE(sequence_, i, {0, 30, 200, 100, SfxWaveType::Noise, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 24, 250, 150, SfxWaveType::Noise, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Hurt:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 80, 0, SfxWaveType::Sawtooth, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 48, 120, 60, SfxWaveType::Sawtooth, 0.35f});
sequenceLength_ = i;
}
break;
case SfxId::Warp:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 40, 0, SfxWaveType::Sine, 0.3f});
ADD_SFX_NOTE(sequence_, i, {1, 36, 350, 0, SfxWaveType::Noise, 0.12f});
ADD_SFX_NOTE(sequence_, i, {0, 55, 40, 35, SfxWaveType::Sine, 0.32f});
ADD_SFX_NOTE(sequence_, i, {0, 62, 40, 35, SfxWaveType::Sine, 0.34f});
ADD_SFX_NOTE(sequence_, i, {0, 69, 40, 35, SfxWaveType::Sine, 0.36f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 40, 35, SfxWaveType::Sine, 0.38f});
ADD_SFX_NOTE(sequence_, i, {0, 83, 50, 35, SfxWaveType::Sine, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 90, 60, 40, SfxWaveType::Sine, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 96, 80, 50, SfxWaveType::Sine, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Pickup:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 60, 0, SfxWaveType::Pulse12, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 88, 60, 50, SfxWaveType::Pulse12, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 91, 100, 50, SfxWaveType::Pulse12, 0.35f});
sequenceLength_ = i;
}
break;
case SfxId::OneUp:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 100, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 76, 100, 80, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 100, 80, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 250, 80, SfxWaveType::Square, 0.45f});
ADD_SFX_NOTE(sequence_, i, {1, 60, 450, 0, SfxWaveType::Triangle, 0.2f});
sequenceLength_ = i;
}
break;
case SfxId::BrickHit:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 76, 20, 0, SfxWaveType::Pulse25, 0.25f});
sequenceLength_ = i;
}
break;
// ── Notifications ────────────────────────────────────────────────────
case SfxId::Alert:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 80, 0, SfxWaveType::Square, 0.45f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 80, 120, SfxWaveType::Square, 0.45f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 80, 120, SfxWaveType::Square, 0.45f});
sequenceLength_ = i;
}
break;
case SfxId::Notify:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 79, 100, 0, SfxWaveType::Sine, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 150, 90, SfxWaveType::Sine, 0.4f});
ADD_SFX_NOTE(sequence_, i, {1, 67, 250, 0, SfxWaveType::Triangle, 0.15f});
sequenceLength_ = i;
}
break;
case SfxId::Success:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 100, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 79, 100, 80, SfxWaveType::Square, 0.4f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 200, 80, SfxWaveType::Square, 0.45f});
ADD_SFX_NOTE(sequence_, i, {1, 60, 400, 0, SfxWaveType::Triangle, 0.2f});
sequenceLength_ = i;
}
break;
// ── Drum Kit ─────────────────────────────────────────────────────────
case SfxId::Kick:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 15, 0, SfxWaveType::Triangle, 0.6f});
ADD_SFX_NOTE(sequence_, i, {0, 36, 60, 10, SfxWaveType::Triangle, 0.55f});
sequenceLength_ = i;
}
break;
case SfxId::Snare:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 50, 0, SfxWaveType::Noise, 0.35f});
ADD_SFX_NOTE(sequence_, i, {1, 48, 30, 0, SfxWaveType::Triangle, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::HiHat:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 80, 15, 0, SfxWaveType::Noise, 0.2f});
sequenceLength_ = i;
}
break;
case SfxId::Crash:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 250, 0, SfxWaveType::Noise, 0.3f});
sequenceLength_ = i;
}
break;
// ── Synth Percussion ─────────────────────────────────────────────────
case SfxId::SynthKick:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 55, 10, 0, SfxWaveType::Sine, 0.6f});
ADD_SFX_NOTE(sequence_, i, {0, 36, 120, 8, SfxWaveType::Sine, 0.55f});
sequenceLength_ = i;
}
break;
case SfxId::SynthSnare:
// MetalNoise -> Noise substitution
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 80, 0, SfxWaveType::Noise, 0.35f});
ADD_SFX_NOTE(sequence_, i, {1, 55, 40, 0, SfxWaveType::Triangle, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::SynthHat:
// MetalNoise -> Noise substitution
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 30, 0, SfxWaveType::Noise, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::SynthTom:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 15, 0, SfxWaveType::Triangle, 0.5f});
ADD_SFX_NOTE(sequence_, i, {0, 48, 100, 12, SfxWaveType::Triangle, 0.45f});
sequenceLength_ = i;
}
break;
case SfxId::SynthRim:
// MetalNoise -> Noise substitution
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 25, 0, SfxWaveType::Noise, 0.35f});
ADD_SFX_NOTE(sequence_, i, {1, 84, 15, 0, SfxWaveType::Pulse12, 0.25f});
sequenceLength_ = i;
}
break;
// ── Extra Effects ────────────────────────────────────────────────────
case SfxId::Zap:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 96, 15, 0, SfxWaveType::Square, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 15, 10, SfxWaveType::Square, 0.30f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 15, 10, SfxWaveType::Square, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 20, 10, SfxWaveType::Square, 0.20f});
sequenceLength_ = i;
}
break;
case SfxId::Blip:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 90, 20, 0, SfxWaveType::Square, 0.3f});
sequenceLength_ = i;
}
break;
case SfxId::Chirp:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 20, 0, SfxWaveType::Pulse25, 0.3f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 30, 15, SfxWaveType::Pulse25, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::Whoosh:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 30, 0, SfxWaveType::Noise, 0.15f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 30, 25, SfxWaveType::Noise, 0.20f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 30, 25, SfxWaveType::Noise, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 40, 25, SfxWaveType::Noise, 0.20f});
sequenceLength_ = i;
}
break;
case SfxId::Ding:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 300, 0, SfxWaveType::Sine, 0.4f});
ADD_SFX_NOTE(sequence_, i, {1, 91, 200, 0, SfxWaveType::Sine, 0.2f});
sequenceLength_ = i;
}
break;
case SfxId::RisingWhoosh:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 36, 30, 0, SfxWaveType::Noise, 0.15f});
ADD_SFX_NOTE(sequence_, i, {0, 48, 30, 25, SfxWaveType::Noise, 0.20f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 30, 25, SfxWaveType::Noise, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 40, 25, SfxWaveType::Noise, 0.30f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 50, 30, SfxWaveType::Noise, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::FallingWhoosh:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 30, 0, SfxWaveType::Noise, 0.30f});
ADD_SFX_NOTE(sequence_, i, {0, 72, 30, 25, SfxWaveType::Noise, 0.25f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 30, 25, SfxWaveType::Noise, 0.20f});
ADD_SFX_NOTE(sequence_, i, {0, 48, 40, 25, SfxWaveType::Noise, 0.15f});
ADD_SFX_NOTE(sequence_, i, {0, 36, 50, 30, SfxWaveType::Noise, 0.10f});
sequenceLength_ = i;
}
break;
case SfxId::GlitchHit:
// MetalNoise -> Noise substitution
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 48, 20, 0, SfxWaveType::Noise, 0.45f});
ADD_SFX_NOTE(sequence_, i, {1, 36, 80, 0, SfxWaveType::Sawtooth, 0.40f});
ADD_SFX_NOTE(sequence_, i, {0, 96, 15, 15, SfxWaveType::Pulse12, 0.30f});
ADD_SFX_NOTE(sequence_, i, {0, 60, 40, 10, SfxWaveType::Noise, 0.25f});
sequenceLength_ = i;
}
break;
case SfxId::DigitalBurst:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 25, 0, SfxWaveType::Pulse12, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 84, 25, 20, SfxWaveType::Pulse12, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 96, 25, 20, SfxWaveType::Pulse12, 0.35f});
ADD_SFX_NOTE(sequence_, i, {0, 108, 30, 20, SfxWaveType::Pulse12, 0.30f});
sequenceLength_ = i;
}
break;
case SfxId::RetroBell:
// HarmonicSquare -> Square substitution
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 84, 200, 0, SfxWaveType::Square, 0.15f});
ADD_SFX_NOTE(sequence_, i, {1, 91, 180, 0, SfxWaveType::Pulse25, 0.10f});
sequenceLength_ = i;
}
break;
// ── Jingles ──────────────────────────────────────────────────────────
// Rising arpeggio (C4-E4-G4-C5-E5-G5-C6) with sustained bass (C3)
case SfxId::LevelUp:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 60, 100, 0, SfxWaveType::Square, 0.28f}); // C4
ADD_SFX_NOTE(sequence_, i, {1, 48, 800, 0, SfxWaveType::Triangle, 0.16f}); // C3 bass pad
ADD_SFX_NOTE(sequence_, i, {0, 64, 100, 80, SfxWaveType::Square, 0.28f}); // E4
ADD_SFX_NOTE(sequence_, i, {0, 67, 100, 80, SfxWaveType::Square, 0.28f}); // G4
ADD_SFX_NOTE(sequence_, i, {0, 72, 150, 80, SfxWaveType::Square, 0.32f}); // C5
ADD_SFX_NOTE(sequence_, i, {0, 76, 100, 130, SfxWaveType::Square, 0.32f}); // E5
ADD_SFX_NOTE(sequence_, i, {0, 79, 100, 80, SfxWaveType::Square, 0.32f}); // G5
ADD_SFX_NOTE(sequence_, i, {0, 84, 300, 80, SfxWaveType::Square, 0.40f}); // C6 (hold)
sequenceLength_ = i;
}
break;
// Descending chromatic line (C5-B4-A4-G4-F4-E4-C4) with bass drone
case SfxId::GameOver:
{
int i = 0;
ADD_SFX_NOTE(sequence_, i, {0, 72, 200, 0, SfxWaveType::Square, 0.30f}); // C5
ADD_SFX_NOTE(sequence_, i, {1, 60, 800, 0, SfxWaveType::Triangle, 0.15f}); // C4 bass drone
ADD_SFX_NOTE(sequence_, i, {0, 71, 200, 180, SfxWaveType::Square, 0.28f}); // B4
ADD_SFX_NOTE(sequence_, i, {0, 69, 200, 180, SfxWaveType::Square, 0.27f}); // A4
ADD_SFX_NOTE(sequence_, i, {0, 67, 200, 180, SfxWaveType::Square, 0.25f}); // G4
ADD_SFX_NOTE(sequence_, i, {1, 55, 600, 0, SfxWaveType::Triangle, 0.15f}); // G3 bass shift
ADD_SFX_NOTE(sequence_, i, {0, 65, 250, 180, SfxWaveType::Square, 0.24f}); // F4
ADD_SFX_NOTE(sequence_, i, {0, 64, 400, 230, SfxWaveType::Square, 0.22f}); // E4
ADD_SFX_NOTE(sequence_, i, {0, 60, 600, 380, SfxWaveType::Square, 0.18f}); // C4 (hold)
sequenceLength_ = i;
}
break;
case SfxId::None:
default:
sequenceLength_ = 0;
break;
}
// Start sequence
if (sequenceLength_ > 0) {
sequenceDelaySamples_ = (sequence_[0].delayMs * SAMPLE_RATE) / 1000;
}
}
#undef ADD_SFX_NOTE
Libraries/SfxEngine/Include/SfxEngine.h
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/**
* @file SfxEngine.h
* @brief Lightweight SFX-only audio engine for ESP32/Tactility apps (~1.5KB RAM)
*
* A stripped-down version of SoundEngine focused on sound effects only.
* No background music, no advanced synthesis (FM, filters, pluck, delay).
*
* Features:
* - 4 simultaneous voices (polyphony)
* - Waveforms: Square, Pulse (25%/12.5%/75%), Triangle, Sawtooth, Sine, Noise, RetroNoise
* - ADSR envelope + special types (Punch, Flare, Swell, Twang, Decay)
* - Effects: Vibrato, Pitch Sweep
* - 52 curated predefined sound effects
* - Queue-based triggering (thread-safe)
* - Persistent audio task
*
* Usage:
* SfxEngine* engine = new SfxEngine();
* engine->start();
* engine->play(SfxId::Coin);
* engine->playNote(0, 72, 200);
* engine->stop();
* delete engine;
*/
#pragma once
#include <cstdint>
#include <tactility/device.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/queue.h"
#include "freertos/semphr.h"
//==============================================================================
// Configuration
//==============================================================================
#ifndef SFX_ENGINE_NUM_VOICES
#define SFX_ENGINE_NUM_VOICES 4
#endif
#ifndef SFX_ENGINE_SAMPLE_RATE
#define SFX_ENGINE_SAMPLE_RATE 16000
#endif
#ifndef SFX_ENGINE_BUFFER_SAMPLES
#define SFX_ENGINE_BUFFER_SAMPLES 256
#endif
//==============================================================================
// Types
//==============================================================================
enum class SfxWaveType : uint8_t {
Square, // 50% duty cycle
Pulse25, // 25% duty cycle (NES-style)
Pulse12, // 12.5% duty cycle
Pulse75, // 75% duty cycle (bright, hollow)
Triangle,
Sawtooth,
Sine,
Noise, // White noise (random)
RetroNoise // NES-style LFSR noise
};
enum class SfxId : uint8_t {
None = 0,
// UI Sounds (9)
Click, Confirm, Cancel, Error,
MenuOpen, MenuClose, Toggle, Slider, Tab,
// TamaTac Pet Sounds (8)
Feed, Play, Medicine, Sleep, Clean, Evolve, Sick, Death,
// Game Sounds (11)
Coin, Powerup, Jump, Land, Laser, Explosion,
Hurt, Warp, Pickup, OneUp, BrickHit,
// Notifications (3)
Alert, Notify, Success,
// Drum Kit (4)
Kick, Snare, HiHat, Crash,
// Synth Percussion (5)
SynthKick, SynthSnare, SynthHat, SynthTom, SynthRim,
// Extra Effects (10)
Zap, Blip, Chirp, Whoosh, Ding,
RisingWhoosh, FallingWhoosh, GlitchHit, DigitalBurst, RetroBell,
// Jingles (2)
LevelUp, GameOver
};
enum class SfxEnvelopeType : uint8_t {
ADSR, // Standard attack-decay-sustain-release
Punch, // Constant volume with boost at start
Flare, // Exponential rise then decay
Swell, // Linear fade-in
Twang, // Extremely fast decay
Decay // Linear decay to zero
};
// Compact note for SFX sequences
struct SfxSequenceNote {
uint8_t voice;
uint8_t pitch;
uint16_t durationMs;
uint16_t delayMs;
SfxWaveType wave;
float volume;
// Optional ADSR override (all zero = use defaults)
uint16_t attackMs = 0;
uint16_t decayMs = 0;
float sustain = 0.0f;
uint16_t releaseMs = 0;
SfxEnvelopeType envType = SfxEnvelopeType::ADSR;
constexpr SfxSequenceNote()
: voice(0), pitch(0), durationMs(0), delayMs(0),
wave(SfxWaveType::Square), volume(0.0f) {}
constexpr SfxSequenceNote(uint8_t v, uint8_t p, uint16_t dur, uint16_t del,
SfxWaveType w, float vol,
uint16_t att = 0, uint16_t dec = 0, float sus = 0.0f,
uint16_t rel = 0, SfxEnvelopeType et = SfxEnvelopeType::ADSR)
: voice(v), pitch(p), durationMs(dur), delayMs(del), wave(w), volume(vol),
attackMs(att), decayMs(dec), sustain(sus), releaseMs(rel), envType(et) {}
};
//==============================================================================
// SfxEngine Class
//==============================================================================
class SfxEngine {
public:
SfxEngine() = default;
~SfxEngine() { stop(); }
SfxEngine(const SfxEngine&) = delete;
SfxEngine& operator=(const SfxEngine&) = delete;
SfxEngine(SfxEngine&&) = delete;
SfxEngine& operator=(SfxEngine&&) = delete;
// Lifecycle
bool start();
void stop();
bool isRunning() const { return running_; }
// SFX API
void play(SfxId sound);
void stopAllSounds();
// Manual note API
void playNote(uint8_t voice, uint8_t midiNote, uint16_t durationMs,
SfxWaveType wave = SfxWaveType::Square, float volume = 0.5f);
void stopVoice(uint8_t voice);
// Settings
void setEnabled(bool enabled) { enabled_ = enabled; }
bool isEnabled() const { return enabled_; }
void setVolume(float vol) { masterVolume_ = (vol < 0) ? 0 : (vol > 1.0f) ? 1.0f : vol; }
float getVolume() const { return masterVolume_; }
// Volume presets (consistent with SoundEngine naming)
enum class VolumePreset { Quiet, Normal, Loud };
void applyVolumePreset(VolumePreset preset);
// Polyphonic gate (consistent with SoundEngine)
void setPolyphonicGateEnabled(bool enabled) { polyphonicGateEnabled_ = enabled; }
bool isPolyphonicGateEnabled() const { return polyphonicGateEnabled_; }
void setSoftGateThreshold(float threshold) {
softGateThreshold_ = (threshold < 0.5f) ? 0.5f : (threshold > 1.0f) ? 1.0f : threshold;
}
float getSoftGateThreshold() const { return softGateThreshold_; }
// Auto-normalization (consistent with SoundEngine)
void setAutoNormalization(bool enabled) { autoNormalize_ = enabled; }
bool isAutoNormalizationEnabled() const { return autoNormalize_; }
void setTargetRms(float rms) {
targetRms_ = (rms < 0.1f) ? 0.1f : (rms > 0.8f) ? 0.8f : rms;
}
float getTargetRms() const { return targetRms_; }
void setRmsSmoothing(float smoothing) {
rmsSmoothing_ = (smoothing < 0.9f) ? 0.9f : (smoothing > 0.99999f) ? 0.99999f : smoothing;
}
float getRmsSmoothing() const { return rmsSmoothing_; }
static constexpr int NUM_VOICES = SFX_ENGINE_NUM_VOICES;
static constexpr int SAMPLE_RATE = SFX_ENGINE_SAMPLE_RATE;
private:
static constexpr const char* TAG = "SfxEngine";
static constexpr int BUFFER_SAMPLES = SFX_ENGINE_BUFFER_SAMPLES;
static constexpr int MAX_SFX_NOTES = 64;
//--------------------------------------------------------------------------
// Voice State
//--------------------------------------------------------------------------
enum class EnvelopeStage { Off, Attack, Decay, Sustain, Release };
struct Voice {
// Oscillator
SfxWaveType wave = SfxWaveType::Square;
float phase = 0.0f;
float baseFreq = 0.0f;
float currentFreq = 0.0f;
// Timing
int samplePos = 0;
int totalSamples = 0;
// Envelope
SfxEnvelopeType envType = SfxEnvelopeType::ADSR;
EnvelopeStage envStage = EnvelopeStage::Off;
float envLevel = 0.0f;
int envSamplePos = 0;
int attackSamples = 0;
int decaySamples = 0;
float sustainLevel = 0.7f;
int releaseSamples = 0;
// Volume
float volume = 0.5f;
// Pitch effects
float vibratoDepth = 0.0f;
float vibratoRate = 0.0f;
float vibratoPhase = 0.0f;
float pitchSweep = 0.0f;
bool active = false;
};
Voice voices_[NUM_VOICES] = {};
//--------------------------------------------------------------------------
// SFX Sequence
//--------------------------------------------------------------------------
SfxSequenceNote sequence_[MAX_SFX_NOTES] = {};
int sequenceLength_ = 0;
int sequenceIndex_ = 0;
int sequenceDelaySamples_ = 0;
//--------------------------------------------------------------------------
// Queue Messages
//--------------------------------------------------------------------------
enum class MsgType : uint8_t {
PlaySound, PlayNote, StopVoice, StopAll
};
struct PlayNoteMsg {
uint8_t voice;
uint8_t midiNote;
uint16_t durationMs;
SfxWaveType wave;
float volume;
};
struct QueueMsg {
MsgType type;
union {
SfxId sfxId;
PlayNoteMsg note;
uint8_t voiceIndex;
};
QueueMsg() : type(MsgType::StopAll), sfxId(SfxId::None) {}
};
//--------------------------------------------------------------------------
// State
//--------------------------------------------------------------------------
Device* i2sDevice_ = nullptr;
TaskHandle_t task_ = nullptr;
SemaphoreHandle_t stopSemaphore_ = nullptr; // Signaled when audio task exits
QueueHandle_t msgQueue_ = nullptr;
volatile bool running_ = false;
volatile bool enabled_ = true;
volatile float masterVolume_ = 0.5f;
// Polyphonic gate
volatile bool polyphonicGateEnabled_ = true;
volatile float softGateThreshold_ = 0.95f;
// Auto-normalization
volatile bool autoNormalize_ = true;
volatile float targetRms_ = 0.35f;
volatile float rmsSmoothing_ = 0.999f;
// Noise generator state (per-instance, audio task only)
uint16_t lfsr_ = 0xACE1;
uint16_t retroLfsr_ = 0xACE1;
// Auto-normalization working state (audio task only)
float currentRms_ = 0.0f;
int rmsCalcCounter_ = 0;
float cachedNormGain_ = 1.0f;
// Audio buffer (member to avoid stack pressure in audio task)
int16_t audioBuffer_[BUFFER_SAMPLES * 2] = {};
//--------------------------------------------------------------------------
// Audio Generation
//--------------------------------------------------------------------------
static float midiToFreq(uint8_t midi);
float generateNoise();
float generateRetroNoise();
float oscillator(SfxWaveType wave, float phase);
void updateEnvelope(Voice& v);
float generateVoiceSample(Voice& v);
void fillStereoBuffer(int16_t* buf, int samples);
float applyPolyphonicGate(float mix, int activeVoices);
float applyAutoNormalization(float mix);
float applyBrickWallLimiter(float sample);
//--------------------------------------------------------------------------
// Sound Loading
//--------------------------------------------------------------------------
void loadSound(SfxId sound);
void triggerNote(Voice& v, uint8_t midiNote, uint16_t durationMs,
SfxWaveType wave, float volume, SfxEnvelopeType envType,
uint16_t attackMs = 0, uint16_t decayMs = 0,
float sustain = 0.0f, uint16_t releaseMs = 0);
void processSequence();
//--------------------------------------------------------------------------
// Task
//--------------------------------------------------------------------------
static void audioTaskFunc(void* param);
};
Libraries/SfxEngine/LICENSE.md
+675
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@@ -0,0 +1,675 @@
# GNU GENERAL PUBLIC LICENSE
Version 3, 29 June 2007
Copyright (C) 2007 Free Software Foundation, Inc.
<https://fsf.org/>
Everyone is permitted to copy and distribute verbatim copies of this
license document, but changing it is not allowed.
## Preamble
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Developers that use the GNU GPL protect your rights with two steps:
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For the developers' and authors' protection, the GPL clearly explains
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## How to Apply These Terms to Your New Programs
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Libraries/SfxEngine/README.md
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# SfxEngine Library
Lightweight SFX-only audio engine for ESP32/Tactility apps. A stripped-down alternative to SoundEngine (~1.5KB RAM vs ~66KB).
## Features
- **4 voices** with polyphonic mixing
- **9 waveforms**: Square, Pulse (25%/12.5%/75%), Triangle, Sawtooth, Sine, Noise, RetroNoise
- **ADSR envelope** + special types (Punch, Flare, Swell, Twang, Decay)
- **Effects**: Vibrato, Pitch Sweep, Polyphonic Gate, Auto-Normalization
- **52 curated SFX**: UI sounds, pet sounds, game sounds, drums, percussion, effects, jingles
- **Thread-safe** queue-based API
- **ESP32 optimized**: ~1.5KB RAM, heap-allocated
## When to Use
| | SfxEngine | SoundEngine |
|---|-----------|-------------|
| **RAM** | ~1.5KB | ~66KB |
| **Voices** | 4 | 8 |
| **SFX** | 52 curated | 100+ |
| **BGM** | No | Yes (9 tracks) |
| **Synthesis** | Basic | FM, Filter, Pluck, Drums |
| **Effects** | Vibrato, Sweep, Gate, Norm | + Delay, Tremolo, Arp, Bitcrush |
| **Use case** | UI feedback, simple games | Rich audio, music apps |
## Quick Start
```cpp
#include "SfxEngine.h"
SfxEngine* engine = new SfxEngine();
if (!engine->start()) {
ESP_LOGE(TAG, "Failed to start SfxEngine");
return;
}
engine->applyVolumePreset(SfxEngine::VolumePreset::Normal);
engine->play(SfxId::Coin); // Predefined SFX
engine->playNote(0, 60, 200); // Manual: voice 0, C4, 200ms
engine->setVolume(0.7f); // Volume control
engine->stop();
delete engine;
```
## Available SFX
**UI** (9): Click, Confirm, Cancel, Error, MenuOpen, MenuClose, Toggle, Slider, Tab
**TamaTac Pet** (8): Feed, Play, Medicine, Sleep, Clean, Evolve, Sick, Death
**Game** (11): Coin, Powerup, Jump, Land, Laser, Explosion, Hurt, Warp, Pickup, OneUp, BrickHit
**Notifications** (3): Alert, Notify, Success
**Drums** (4): Kick, Snare, HiHat, Crash
**Synth Percussion** (5): SynthKick, SynthSnare, SynthHat, SynthTom, SynthRim
**Effects** (10): Zap, Blip, Chirp, Whoosh, Ding, RisingWhoosh, FallingWhoosh, GlitchHit, DigitalBurst, RetroBell
**Jingles** (2): LevelUp, GameOver
## CMake Integration
```cmake
file(GLOB_RECURSE SOURCE_FILES Source/*.c*)
file(GLOB_RECURSE SFX_ENGINE_FILES ../../../Libraries/SfxEngine/Source/*.c*)
idf_component_register(
SRCS ${SOURCE_FILES} ${SFX_ENGINE_FILES}
INCLUDE_DIRS
../../../Libraries/TactilityCpp/Include
../../../Libraries/SfxEngine/Include
REQUIRES TactilitySDK esp_driver_i2s esp_driver_gpio
)
```
## API Reference
### Lifecycle
- `bool start()` - Start audio engine
- `void stop()` - Stop audio engine
- `bool isRunning()` - Check status
### SFX
- `void play(SfxId)` - Play predefined sound
- `void stopAllSounds()` - Stop all voices
### Manual Notes
- `void playNote(voice, midiNote, durationMs, wave, volume)` - Play custom note
- `void stopVoice(voice)` - Stop specific voice
### Settings
- `void setVolume(float)` - Master volume (0.0-1.0, exponential curve)
- `void setEnabled(bool)` - Mute/unmute
- `void applyVolumePreset(VolumePreset)` - Apply Quiet/Normal/Loud preset (configures volume, gate, normalization)
### Mixing (consistent with SoundEngine)
- `void setPolyphonicGateEnabled(bool)` - Soft gate when multiple voices clip (default: on)
- `void setSoftGateThreshold(float)` - Gate threshold 0.5-1.0 (default: 0.95)
- `void setAutoNormalization(bool)` - RMS-based auto-gain (default: on)
- `void setTargetRms(float)` - Target RMS level 0.1-0.8 (default: 0.35)
- `void setRmsSmoothing(float)` - Smoothing factor 0.9-0.99999 (default: 0.999)
## File Structure
```text
Libraries/SfxEngine/
Include/
SfxEngine.h # Core engine header
SfxDefinitions.h # 52 curated SFX definitions
Source/
SfxEngine.cpp # Implementation
LICENSE.md # GPL v3
README.md
```
## License
Licensed under the [GNU General Public License v3.0](LICENSE.md).
Libraries/SfxEngine/Source/SfxEngine.cpp
+649
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/**
* @file SfxEngine.cpp
* @brief Lightweight SFX-only audio engine implementation.
*
* Stripped-down version of SoundEngine — no BGM, no delay, no advanced synthesis.
* Sound definitions are in SfxDefinitions.h (inline loadSound).
*/
#include "SfxEngine.h"
#include "SfxDefinitions.h"
#include <tactility/drivers/i2s_controller.h>
#include <cmath>
#include <cstring>
#include "esp_log.h"
#ifndef M_PI
#define M_PI 3.14159265358979323846f
#endif
//==============================================================================
// Noise Generators
//==============================================================================
float SfxEngine::generateNoise() {
uint16_t bit = ((lfsr_ >> 0) ^ (lfsr_ >> 2) ^ (lfsr_ >> 3) ^ (lfsr_ >> 5)) & 1;
lfsr_ = (lfsr_ >> 1) | (bit << 15);
return (lfsr_ & 1) ? 1.0f : -1.0f;
}
float SfxEngine::generateRetroNoise() {
uint16_t bit = ((retroLfsr_ >> 0) ^ (retroLfsr_ >> 1)) & 1;
retroLfsr_ = (retroLfsr_ >> 1) | (bit << 14);
return (retroLfsr_ & 1) ? 1.0f : -1.0f;
}
//==============================================================================
// Utility
//==============================================================================
float SfxEngine::midiToFreq(uint8_t midi) {
if (midi == 0) return 0.0f;
if (midi > 127) midi = 127;
return 440.0f * powf(2.0f, (midi - 69.0f) / 12.0f);
}
float SfxEngine::oscillator(SfxWaveType wave, float phase) {
switch (wave) {
case SfxWaveType::Square:
return (phase < 0.5f) ? 1.0f : -1.0f;
case SfxWaveType::Pulse25:
return (phase < 0.25f) ? 1.0f : -1.0f;
case SfxWaveType::Pulse12:
return (phase < 0.125f) ? 1.0f : -1.0f;
case SfxWaveType::Pulse75:
return (phase < 0.75f) ? 1.0f : -1.0f;
case SfxWaveType::Triangle:
return 4.0f * fabsf(phase - 0.5f) - 1.0f;
case SfxWaveType::Sawtooth:
return 2.0f * phase - 1.0f;
case SfxWaveType::Sine:
return sinf(phase * 2.0f * M_PI);
case SfxWaveType::Noise:
return generateNoise();
case SfxWaveType::RetroNoise:
return generateRetroNoise();
default:
return 0.0f;
}
}
//==============================================================================
// Envelope Processing
//==============================================================================
void SfxEngine::updateEnvelope(Voice& v) {
if (v.envStage == EnvelopeStage::Off) {
v.envLevel = 0.0f;
return;
}
v.envSamplePos++;
// Special envelope types
if (v.envType == SfxEnvelopeType::Punch) {
if (v.envSamplePos < v.attackSamples) {
v.envLevel = 1.0f + (1.0f - static_cast<float>(v.envSamplePos) / v.attackSamples);
} else {
v.envLevel = 1.0f;
}
if (v.samplePos >= v.totalSamples && v.totalSamples > 0) {
v.envStage = EnvelopeStage::Off;
v.active = false;
}
if (v.envLevel > 1.5f) v.envLevel = 1.5f;
return;
} else if (v.envType == SfxEnvelopeType::Flare) {
if (v.envSamplePos < v.attackSamples) {
float progress = static_cast<float>(v.envSamplePos) / v.attackSamples;
v.envLevel = progress * progress;
} else if (v.envSamplePos < v.attackSamples + v.decaySamples) {
float progress = static_cast<float>(v.envSamplePos - v.attackSamples) / v.decaySamples;
v.envLevel = 1.0f - progress;
} else {
v.envLevel = 0.0f;
v.envStage = EnvelopeStage::Off;
v.active = false;
}
return;
} else if (v.envType == SfxEnvelopeType::Swell) {
if (v.totalSamples > 0) {
v.envLevel = static_cast<float>(v.samplePos) / v.totalSamples;
if (v.envLevel > 1.0f) v.envLevel = 1.0f;
} else {
v.envLevel = 1.0f;
}
if (v.samplePos >= v.totalSamples && v.totalSamples > 0) {
v.envStage = EnvelopeStage::Off;
v.active = false;
}
return;
} else if (v.envType == SfxEnvelopeType::Twang) {
if (v.envSamplePos == 1) v.envLevel = 1.0f;
v.envLevel *= 0.992f;
if (v.envLevel < 0.001f) {
v.envLevel = 0.0f;
v.envStage = EnvelopeStage::Off;
v.active = false;
}
return;
} else if (v.envType == SfxEnvelopeType::Decay) {
if (v.totalSamples > 0) {
v.envLevel = 1.0f - (static_cast<float>(v.samplePos) / v.totalSamples);
if (v.envLevel < 0.0f) v.envLevel = 0.0f;
}
if (v.samplePos >= v.totalSamples && v.totalSamples > 0) {
v.envStage = EnvelopeStage::Off;
v.active = false;
}
return;
}
// Standard ADSR
switch (v.envStage) {
case EnvelopeStage::Attack:
if (v.attackSamples > 0) {
v.envLevel = static_cast<float>(v.envSamplePos) / v.attackSamples;
} else {
v.envLevel = 1.0f;
}
if (v.envSamplePos >= v.attackSamples) {
v.envStage = EnvelopeStage::Decay;
v.envSamplePos = 0;
}
break;
case EnvelopeStage::Decay:
if (v.decaySamples > 0) {
float progress = static_cast<float>(v.envSamplePos) / v.decaySamples;
v.envLevel = 1.0f - progress * (1.0f - v.sustainLevel);
} else {
v.envLevel = v.sustainLevel;
}
if (v.envSamplePos >= v.decaySamples) {
v.envStage = EnvelopeStage::Sustain;
v.envSamplePos = 0;
}
break;
case EnvelopeStage::Sustain:
v.envLevel = v.sustainLevel;
if (v.samplePos >= v.totalSamples && v.totalSamples > 0) {
v.envStage = EnvelopeStage::Release;
v.envSamplePos = 0;
}
break;
case EnvelopeStage::Release:
if (v.releaseSamples > 0) {
float progress = static_cast<float>(v.envSamplePos) / v.releaseSamples;
v.envLevel = v.sustainLevel * (1.0f - progress);
} else {
v.envLevel = 0.0f;
}
if (v.envSamplePos >= v.releaseSamples) {
v.envStage = EnvelopeStage::Off;
v.active = false;
}
break;
default:
break;
}
if (v.envLevel < 0.0f) v.envLevel = 0.0f;
if (v.envLevel > 1.0f) v.envLevel = 1.0f;
}
//==============================================================================
// Advanced Mixing Functions
//==============================================================================
float SfxEngine::applyPolyphonicGate(float mix, int activeVoices) {
if (!polyphonicGateEnabled_ || activeVoices <= 1) return mix;
float absMix = fabsf(mix);
if (absMix <= softGateThreshold_) return mix;
float excess = absMix - softGateThreshold_;
float gainReduction = 1.0f - (excess / (1.0f + activeVoices * 0.25f));
gainReduction = fmaxf(gainReduction, 0.3f);
return mix * gainReduction;
}
float SfxEngine::applyAutoNormalization(float mix) {
float sampleSquared = mix * mix;
currentRms_ = currentRms_ * rmsSmoothing_ + sampleSquared * (1.0f - rmsSmoothing_);
if (!autoNormalize_) return mix;
if (++rmsCalcCounter_ >= 16) {
rmsCalcCounter_ = 0;
if (currentRms_ >= 0.001f) {
float currentRmsLinear = sqrtf(currentRms_);
float gainAdjust = targetRms_ / currentRmsLinear;
gainAdjust = fminf(gainAdjust, 1.5f);
gainAdjust = fmaxf(gainAdjust, 0.5f);
cachedNormGain_ = gainAdjust;
} else {
cachedNormGain_ = 1.0f;
}
}
return mix * cachedNormGain_;
}
//==============================================================================
// Brick-Wall Limiter
//==============================================================================
float SfxEngine::applyBrickWallLimiter(float sample) {
constexpr float threshold = 0.98f;
constexpr float knee = 0.02f;
float absSample = fabsf(sample);
if (absSample <= threshold - knee) {
return sample;
} else if (absSample >= threshold) {
return (sample > 0.0f) ? threshold : -threshold;
} else {
float excess = absSample - (threshold - knee);
float compression = knee * tanhf(excess / knee);
float limited = (threshold - knee) + compression;
return (sample > 0.0f) ? limited : -limited;
}
}
//==============================================================================
// Sample Generation
//==============================================================================
float SfxEngine::generateVoiceSample(Voice& v) {
if (!v.active && v.envStage == EnvelopeStage::Off) {
return 0.0f;
}
// Apply vibrato
float freq = v.currentFreq;
if (v.vibratoDepth > 0.0f && v.vibratoRate > 0.0f) {
float vibrato = sinf(v.vibratoPhase * 2.0f * M_PI) * v.vibratoDepth;
freq = freq * powf(2.0f, vibrato / 12.0f);
v.vibratoPhase += v.vibratoRate / SAMPLE_RATE;
if (v.vibratoPhase >= 1.0f) v.vibratoPhase -= 1.0f;
}
// Apply pitch sweep
if (v.pitchSweep != 0.0f) {
float semitonesSwept = v.pitchSweep * (static_cast<float>(v.samplePos) / SAMPLE_RATE);
freq = freq * powf(2.0f, semitonesSwept / 12.0f);
}
// Generate oscillator output
float sample = oscillator(v.wave, v.phase);
// Advance phase
if (freq > 0.0f) {
v.phase += freq / SAMPLE_RATE;
while (v.phase >= 1.0f) v.phase -= 1.0f;
}
// Update envelope
updateEnvelope(v);
// Advance sample position
v.samplePos++;
// Apply envelope and volume
return sample * v.envLevel * v.volume;
}
void SfxEngine::fillStereoBuffer(int16_t* buf, int samples) {
for (int i = 0; i < samples; i++) {
processSequence();
float mix = 0.0f;
if (enabled_) {
int activeVoices = 0;
for (int v = 0; v < NUM_VOICES; v++) {
if (voices_[v].active || voices_[v].envStage != EnvelopeStage::Off) {
mix += generateVoiceSample(voices_[v]);
activeVoices++;
}
}
// Apply polyphonic soft gate (proportional reduction when clipping threatened)
mix = applyPolyphonicGate(mix, activeVoices);
// Apply master volume (exponential curve for perceptual linearity)
float volCurve = masterVolume_ * masterVolume_;
mix *= volCurve;
// Apply auto-normalization (consistent volume across different SFX)
mix = applyAutoNormalization(mix);
// Brick-wall limiter (final safety net before soft clip)
mix = applyBrickWallLimiter(mix);
}
// Cubic soft clip
if (mix > 1.0f) mix = 1.0f;
else if (mix < -1.0f) mix = -1.0f;
else mix = (3.0f - mix * mix) * mix / 2.0f;
// Convert to 16-bit stereo
int16_t s = static_cast<int16_t>(mix * 28000);
buf[i * 2] = s;
buf[i * 2 + 1] = s;
}
}
//==============================================================================
// Note Triggering
//==============================================================================
void SfxEngine::triggerNote(Voice& v, uint8_t midiNote, uint16_t durationMs,
SfxWaveType wave, float volume, SfxEnvelopeType envType,
uint16_t attackMs, uint16_t decayMs,
float sustain, uint16_t releaseMs) {
v.wave = wave;
v.baseFreq = midiToFreq(midiNote);
v.currentFreq = v.baseFreq;
v.phase = 0.0f;
v.samplePos = 0;
v.totalSamples = (durationMs * SAMPLE_RATE) / 1000;
v.volume = volume;
// Envelope
v.envType = envType;
v.envStage = EnvelopeStage::Attack;
v.envLevel = 0.0f;
v.envSamplePos = 0;
if (attackMs > 0 || decayMs > 0 || releaseMs > 0 || envType != SfxEnvelopeType::ADSR) {
v.attackSamples = (attackMs * SAMPLE_RATE) / 1000;
v.decaySamples = (decayMs * SAMPLE_RATE) / 1000;
v.sustainLevel = sustain;
v.releaseSamples = (releaseMs * SAMPLE_RATE) / 1000;
} else {
// Default quick envelope for SFX
v.attackSamples = (10 * SAMPLE_RATE) / 1000;
v.decaySamples = (30 * SAMPLE_RATE) / 1000;
v.sustainLevel = 0.8f;
v.releaseSamples = (50 * SAMPLE_RATE) / 1000;
}
// Reset pitch effects
v.vibratoDepth = 0.0f;
v.vibratoRate = 0.0f;
v.vibratoPhase = 0.0f;
v.pitchSweep = 0.0f;
v.active = true;
}
//==============================================================================
// Sequence Processing
//==============================================================================
void SfxEngine::processSequence() {
if (sequenceIndex_ >= sequenceLength_) return;
if (sequenceDelaySamples_ > 0) {
sequenceDelaySamples_--;
return;
}
const SfxSequenceNote& note = sequence_[sequenceIndex_];
if (note.voice < NUM_VOICES && note.pitch > 0) {
triggerNote(voices_[note.voice], note.pitch, note.durationMs,
note.wave, note.volume, note.envType,
note.attackMs, note.decayMs, note.sustain, note.releaseMs);
}
sequenceIndex_++;
if (sequenceIndex_ < sequenceLength_) {
sequenceDelaySamples_ = (sequence_[sequenceIndex_].delayMs * SAMPLE_RATE) / 1000;
}
}
//==============================================================================
// Audio Task
//==============================================================================
void SfxEngine::audioTaskFunc(void* param) {
auto* self = static_cast<SfxEngine*>(param);
size_t written;
QueueMsg msg;
ESP_LOGI(TAG, "Audio task started");
while (self->running_) {
// Process queued messages (non-blocking)
while (xQueueReceive(self->msgQueue_, &msg, 0) == pdTRUE) {
switch (msg.type) {
case MsgType::PlaySound:
self->loadSound(msg.sfxId);
break;
case MsgType::PlayNote:
if (msg.note.voice < NUM_VOICES) {
self->triggerNote(self->voices_[msg.note.voice],
msg.note.midiNote, msg.note.durationMs,
msg.note.wave, msg.note.volume,
SfxEnvelopeType::ADSR);
}
break;
case MsgType::StopVoice:
if (msg.voiceIndex < NUM_VOICES) {
self->voices_[msg.voiceIndex].envStage = EnvelopeStage::Release;
self->voices_[msg.voiceIndex].envSamplePos = 0;
}
break;
case MsgType::StopAll:
for (int i = 0; i < NUM_VOICES; i++) {
self->voices_[i].envStage = EnvelopeStage::Release;
self->voices_[i].envSamplePos = 0;
}
self->sequenceLength_ = 0;
break;
}
}
// Fill audio buffer (member buffer to avoid stack pressure)
self->fillStereoBuffer(self->audioBuffer_, BUFFER_SAMPLES);
// Write to I2S
error_t error = i2s_controller_write(self->i2sDevice_, self->audioBuffer_,
sizeof(self->audioBuffer_), &written, pdMS_TO_TICKS(100));
if (error != ERROR_NONE) {
ESP_LOGE(TAG, "I2S write error");
self->running_ = false;
break;
}
}
// Flush silence
memset(self->audioBuffer_, 0, sizeof(self->audioBuffer_));
i2s_controller_write(self->i2sDevice_, self->audioBuffer_, sizeof(self->audioBuffer_), &written, pdMS_TO_TICKS(50));
ESP_LOGI(TAG, "Audio task exiting");
// Signal stop() that we're done
if (self->stopSemaphore_ != nullptr) {
xSemaphoreGive(self->stopSemaphore_);
}
vTaskDelete(NULL);
}
//==============================================================================
// Public API
//==============================================================================
bool SfxEngine::start() {
if (running_) return true;
// Find I2S device
i2sDevice_ = nullptr;
device_for_each_of_type(&I2S_CONTROLLER_TYPE, &i2sDevice_, [](Device* device, void* context) {
if (!device_is_ready(device)) return true;
Device** devicePtr = static_cast<Device**>(context);
*devicePtr = device;
return false;
});
if (i2sDevice_ == nullptr) {
ESP_LOGW(TAG, "No I2S device found");
return false;
}
// Configure I2S
I2sConfig config = {
.communication_format = I2S_FORMAT_STAND_I2S,
.sample_rate = SAMPLE_RATE,
.bits_per_sample = 16,
.channel_left = 0,
.channel_right = 0
};
error_t error = i2s_controller_set_config(i2sDevice_, &config);
if (error != ERROR_NONE) {
ESP_LOGE(TAG, "Failed to configure I2S: %s", error_to_string(error));
i2sDevice_ = nullptr;
return false;
}
// Create message queue
msgQueue_ = xQueueCreate(8, sizeof(QueueMsg));
if (msgQueue_ == nullptr) {
ESP_LOGE(TAG, "Failed to create message queue");
i2s_controller_reset(i2sDevice_);
i2sDevice_ = nullptr;
return false;
}
// Start audio task
running_ = true;
BaseType_t result = xTaskCreate(audioTaskFunc, "sfxeng", 4096, this, 5, &task_);
if (result != pdPASS) {
ESP_LOGE(TAG, "Failed to create audio task");
running_ = false;
vQueueDelete(msgQueue_);
msgQueue_ = nullptr;
i2s_controller_reset(i2sDevice_);
i2sDevice_ = nullptr;
return false;
}
ESP_LOGI(TAG, "SfxEngine started (voices=%d, sampleRate=%d)", NUM_VOICES, SAMPLE_RATE);
return true;
}
void SfxEngine::stop() {
if (!running_) return;
// Create semaphore for deterministic shutdown
stopSemaphore_ = xSemaphoreCreateBinary();
running_ = false;
if (task_ != nullptr) {
// Wait for audio task to signal completion (up to 500ms)
if (stopSemaphore_ != nullptr) {
xSemaphoreTake(stopSemaphore_, pdMS_TO_TICKS(500));
}
task_ = nullptr;
}
if (stopSemaphore_ != nullptr) {
vSemaphoreDelete(stopSemaphore_);
stopSemaphore_ = nullptr;
}
if (msgQueue_ != nullptr) {
vQueueDelete(msgQueue_);
msgQueue_ = nullptr;
}
if (i2sDevice_ != nullptr) {
i2s_controller_reset(i2sDevice_);
i2sDevice_ = nullptr;
}
ESP_LOGI(TAG, "SfxEngine stopped");
}
void SfxEngine::applyVolumePreset(VolumePreset preset) {
switch (preset) {
case VolumePreset::Quiet:
masterVolume_ = 0.3f;
autoNormalize_ = true;
targetRms_ = 0.25f;
polyphonicGateEnabled_ = true;
softGateThreshold_ = 0.90f;
ESP_LOGI(TAG, "Applied Quiet preset");
break;
case VolumePreset::Normal:
masterVolume_ = 0.5f;
autoNormalize_ = true;
targetRms_ = 0.35f;
polyphonicGateEnabled_ = true;
softGateThreshold_ = 0.95f;
ESP_LOGI(TAG, "Applied Normal preset");
break;
case VolumePreset::Loud:
masterVolume_ = 0.75f;
autoNormalize_ = true;
targetRms_ = 0.45f;
polyphonicGateEnabled_ = true;
softGateThreshold_ = 0.98f;
ESP_LOGI(TAG, "Applied Loud preset");
break;
}
}
void SfxEngine::play(SfxId sound) {
if (!running_ || msgQueue_ == nullptr) return;
QueueMsg msg;
msg.type = MsgType::PlaySound;
msg.sfxId = sound;
xQueueSend(msgQueue_, &msg, 0);
}
void SfxEngine::stopAllSounds() {
if (!running_ || msgQueue_ == nullptr) return;
QueueMsg msg;
msg.type = MsgType::StopAll;
xQueueSend(msgQueue_, &msg, 0);
}
void SfxEngine::playNote(uint8_t voice, uint8_t midiNote, uint16_t durationMs,
SfxWaveType wave, float volume) {
if (!running_ || msgQueue_ == nullptr || voice >= NUM_VOICES) return;
QueueMsg msg;
msg.type = MsgType::PlayNote;
msg.note = {voice, midiNote, durationMs, wave, volume};
xQueueSend(msgQueue_, &msg, 0);
}
void SfxEngine::stopVoice(uint8_t voice) {
if (!running_ || msgQueue_ == nullptr || voice >= NUM_VOICES) return;
QueueMsg msg;
msg.type = MsgType::StopVoice;
msg.voiceIndex = voice;
xQueueSend(msgQueue_, &msg, 0);
}