looper.h

#pragma once

#include "luts.h"

namespace atoav {

enum RecPitchMode {
  REC_PITCH_MODE_NORMAL,
  REC_PITCH_MODE_UNPITCHED,
  REC_PITCH_MODE_LAST,
};

enum RecStartMode {
  REC_START_MODE_BUFFER,
  REC_START_MODE_LOOP,
  REC_START_MODE_PLAYHEAD,
  REC_START_MODE_LAST,
};

enum PlaybackState {
  PLAYBACK_STATE_STOPPED,
  PLAYBACK_STATE_LOOP,
  PLAYBACK_STATE_MULTILOOP,
  PLAYBACK_STATE_MIDI,
  PLAYBACK_STATE_LAST,
};

enum RecordingState {
  REC_STATE_EMPTY,
  REC_STATE_RECORDING,
  REC_STATE_OVERDUBBING,
  REC_STATE_ERASING,
  REC_STATE_NONE,
  REC_STATE_LAST,
};

// =================================================
// =                   H E A D                     =
// =================================================

class Head {
  public:
    Head();
    void activate();
    void deactivate();
    bool isActive();
    void setPosition(float value);
    void reset();
    void setIncrement(float value);
    void incrementBy(float value);
    void slowDown();
    void reverse();
    void speedUp();
    void update();
    float read();
    float increment = 1.0f;
    float variation = 0.0f;
    float variation_amount = 0.0f;
    float speed_multiplier = 1.0f;
  private:
    bool active = true;
    float position = 0.0f;
};

Head::Head() {
  variation = random(-0.1f, 0.1f);
}
void Head::activate() {
  this->active = true;
}