/*====================================================/
/ Name:    composer.h                                 /
/ Author:  Joy Schoenberger                           /
/ Date:    April 2002                                 /
/ Purpose: Header file for composer class for         /
/          CS710 Masters research project: Genetic    /
/          Algorithms for Musical Composition with    /
/          Coherency Through Genotype                 /
/====================================================*/
#include "genmus.h"
#include "rng.h"

class Composer{
  
 private:
  
  void initializeByHand(); 
  // hand-roled initialization used for initial testing only

  void initialize();
  // random initialization of DNA

  void initializeBroad();
  // pseudo-random initialization that allows for more initial possibility
  // in the first generation.  this should lead to broader evolution

  bool composeNextNote(Note& nextNote, Note prevNote, 
		       int numVoices, Chord currChord, 
		       bool first, int minPitch, int maxPitch,
		       int noteNum);
  // The heart of the composition process

  Phrase composePhrase();
  // calls composeNextNote for each note of the phrase
  // with randomly selected number of voices

  bool ivalCheckOK(int placedNote,Note prevNote, int noteNum);
  // checks intervals between prev and next note against
  // the validIntervals genome

  int Equilikely(int, int);
  // standard random integer generator

  int max(int a,int b){
    if(a<b) return b;
    else return a;
  }
  // rolled my own max function to make my life easier

  int min(int a,int b){
    if(a>b) return b;
    else return a;
  }
  // rolled my own min function to make my life easier

 public:

  // Constructors
  Composer (void);

  // Destructor
  ~Composer (void);

  DNA* genMap; // I'd like to protect this, but it makes cross-breeding a pain

  void display();
  // show this composer's DNA

  void mutate();
  // this just calls initialize()

  DNA* crossBreed(Composer & Mate);
  // mates this composer with Mate and returns their offspring DNA

  Song composeSong();
  // calls composePhrase for each of four phrases
};