Step.h

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// Copyright (c) XJ Music Inc. (https://xjmusic.com) All Rights Reserved.
 
#ifndef XJMUSIC_MUSIC_STEP_H
#define XJMUSIC_MUSIC_STEP_H
 
#include <map>
 
#include "PitchClass.h"
 
namespace XJ {
 
  class Step {
  private:
    static std::map<PitchClass, Step> stepUpMap;
 
    static std::map<PitchClass, Step> stepDownMap;
 
    static std::map<PitchClass, std::map<PitchClass, int>> deltaMap;
 
  public:
    PitchClass pitchClass;
    int deltaOctave;
 
    Step(PitchClass pitchClass, int deltaOctave);
 
    static Step to(PitchClass pitchClass, int deltaOctave);
 
    static int delta(PitchClass from, PitchClass to);
 
    static Step step(PitchClass from, int inc);
 
    static Step stepUp(PitchClass from, int inc);
 
    static Step stepDown(PitchClass from, int inc);
 
  };
 
}//namespace XJ
 
#endif //XJMUSIC_MUSIC_STEP_H