// -------------------------------------------------
// Copyright (c) 2022 HiBit <https://www.hibit.dev>
// -------------------------------------------------

#include "pitches.h"

#define BUZZER_PIN 8

int melody[] = {
 0, 0, 0, NOTE_DS4, 
  NOTE_E4, 0, NOTE_FS4, NOTE_G4, 0, NOTE_DS4,
  NOTE_E4, NOTE_FS4,  NOTE_G4, NOTE_C5, NOTE_B4, NOTE_E4, NOTE_G4, NOTE_B4,   
  NOTE_AS4, NOTE_A4, NOTE_G4, NOTE_E4, NOTE_D4, 
  NOTE_E4, 0, 0, NOTE_DS4,
  
  NOTE_E4, 0, NOTE_FS4, NOTE_G4, 0, NOTE_DS4,
  NOTE_E4, NOTE_FS4,  NOTE_G4, NOTE_C5, NOTE_B4, NOTE_G4, NOTE_B4, NOTE_E5,
  NOTE_DS5,   
  NOTE_D5, 0, 0, NOTE_DS4, 
  NOTE_E4, 0, NOTE_FS4, NOTE_G4, 0, NOTE_DS4,
  NOTE_E4, NOTE_FS4,  NOTE_G4, NOTE_C5, NOTE_B4, NOTE_E4, NOTE_G4, NOTE_B4,   
  
  NOTE_AS4, NOTE_A4, NOTE_G4, NOTE_E4, NOTE_D4, 
  NOTE_E4, 0,
 0, NOTE_E5, NOTE_D5, NOTE_B4, NOTE_A4, NOTE_G4, NOTE_E4,
  NOTE_AS4, NOTE_A4, NOTE_AS4, NOTE_A4, NOTE_AS4, NOTE_A4, NOTE_AS4, NOTE_A4,   
  NOTE_G4, NOTE_E4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4
};

int durations[] = {
  2, 4, 8, 8, 
  4, 8, 8, 4, 8, 8,
  8, 8,  8, 8, 8, 8, 8, 8,   
  2, 16, 16, 16, 16, 
  2, 4, 8, 4,
  
  4, 8, 8, 4, 8, 8,
  8, 8,  8, 8, 8, 8, 8, 8,
  1,   
  2, 4, 8, 8, 
  4, 8, 8, 4, 8, 8,
  8, 8,  8, 8, 8, 8, 8, 8,   
  
  2, 16, 16, 16, 16, 
  4, 4,
  4, 8, 8, 8, 8, 8, 8,
  16, 8, 16, 8, 16, 8, 16, 8,   
  16, 16, 16, 16, 16, 2
};

void setup()
{
  pinMode(BUZZER_PIN, OUTPUT);
}

void loop()
{
  int size = sizeof(durations) / sizeof(int);

  for (int note = 0; note < size; note++) {
    //to calculate the note duration, take one second divided by the note type.
    //e.g. quarter note = 1000 / 4, eighth note = 1000/8, etc.
    int duration = 1000 / durations[note];
    tone(BUZZER_PIN, melody[note], duration);

    //to distinguish the notes, set a minimum time between them.
    //the note's duration + 30% seems to work well:
    int pauseBetweenNotes = duration * 1.30;
    delay(pauseBetweenNotes);
    
    //stop the tone playing:
    noTone(BUZZER_PIN);
  }
}