Gate control and ADSR as elements

synth_engine.h

@@ -68,25 +68,9 @@ public:
      */
     float getFrequency() const;
 
-    /**
-     * @brief Configures the ADSR envelope.
-     * @param attack Attack time in seconds.
-     * @param decay Decay time in seconds.
-     * @param sustain Sustain level (0.0 to 1.0).
-     * @param release Release time in seconds.
-     */
-    void setADSR(float attack, float decay, float sustain, float release);
-
-    /**
-     * @brief Configures the filters.
-     * @param lpCutoff Low-pass cutoff frequency in Hz.
-     * @param hpCutoff High-pass cutoff frequency in Hz.
-     */
-    void setFilter(float lpCutoff, float hpCutoff);
-
     // --- Grid Synth ---
     struct GridCell {
-        enum Type { EMPTY, FIXED_OSCILLATOR, INPUT_OSCILLATOR, WAVETABLE, NOISE, LFO, FORK, WIRE, LPF, HPF, VCA, BITCRUSHER, DISTORTION, GLITCH, OPERATOR, DELAY, REVERB, SINK };
+        enum Type { EMPTY, FIXED_OSCILLATOR, INPUT_OSCILLATOR, WAVETABLE, NOISE, LFO, GATE, GATE_INPUT, ADSR_ATTACK, ADSR_DECAY, ADSR_SUSTAIN, ADSR_RELEASE, FORK, WIRE, LPF, HPF, VCA, BITCRUSHER, DISTORTION, RECTIFIER, PITCH_SHIFTER, GLITCH, OPERATOR, DELAY, REVERB, SINK };
         enum Op { OP_ADD, OP_MUL, OP_SUB, OP_DIV, OP_MIN, OP_MAX };
         
         Type type = EMPTY;
@@ -112,18 +96,10 @@ private:
     float _volume;
     Waveform _waveform;
     bool _isGateOpen;
+    uint32_t _rngState;
 
-    // ADSR State
-    enum EnvState { ENV_IDLE, ENV_ATTACK, ENV_DECAY, ENV_SUSTAIN, ENV_RELEASE };
-    EnvState _envState;
-    float _envLevel;
-    float _attackInc, _decayDec, _sustainLevel, _releaseDec;
-
-    // Filter State
-    float _lpAlpha;
-    float _hpAlpha;
-    float _lpVal;
-    float _hpVal;
+    // Internal random number generator
+    float _random();
 };
 
 #endif // SYNTH_ENGINE_H