Subversion Repositories DIN Is Noise

/*
* modulator.h
* DIN Is Noise is copyright (c) 2006-2021 Jagannathan Sampath
* For more information, please visit https://dinisnoise.org/
*/
#ifndef __modulator__
#define __modulator__

#include "beat2value.h"

#include <fstream>
#include <string>

struct multi_curve;
struct drone;

struct autorotator {

  int yes;
  int dir; // +1 = anti-clockwise , -1 = clockwise
  float rpm;

  struct anglet {
    float persec;
    float theta;
    anglet () {
      persec = 0.0f;
      theta = 0.0f;
    }
  } angle;

  autorotator () {
    yes = 0;
    dir = -1;
    set_rpm (1.0f);
  }

  void set_rpm (float r);

};

std::ostream& operator<< (std::ostream&, autorotator& ar);
std::istream& operator>> (std::istream&, autorotator& ar);

struct mod_params {

  double t;

  float depth;
  beat2value bv;

  float result;

  enum {VERTICAL, HORIZONTAL, VELOCITY, ACCELERATION};
  static point<float> vertical, horizontal;
  int dir;
  float *dirx, *diry;
  autorotator autorot; // for autorotating direction

  void setdir (int d, float* x, float* y) {
    dir = d;
    dirx = x;
    diry = y;
  }

  void calcdir (drone& d);

  float initial; // for microtonal range modulation

  mod_params (multi_curve* c, int d, point<float>& p, const std::string& n = "noname");
  void set_bpm (float value, int reset = 0);
  void calc ();
  void clear (int reset = 0);

};

struct modulator {

  enum {AM, FM};
  mod_params am, fm;
  mod_params* arr[2];
 
  enum {FROZEN=-1, NOT_ACTIVE, ACTIVE};
  int active;

  int scrubbed;

  modulator (multi_curve* fmc, multi_curve* amc) : am (amc, mod_params::VERTICAL, mod_params::vertical), fm (fmc, mod_params::HORIZONTAL, mod_params::horizontal) {
    active = scrubbed = 0;
    arr[0] = &am;
    arr[1] = &fm;
  }

  void clear () {
    am.clear ();
    fm.clear ();
    active = 0;
  }

  void calc () {
    am.calc ();
    fm.calc ();
  }


};

#endif