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

#include "pitches.h"

#define BUZZER_PIN 8

int melody[] = {
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0,
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
  NOTE_A4, NOTE_G4, NOTE_A4, 0,
  
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0,
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
  NOTE_A4, NOTE_G4, NOTE_A4, 0,
  
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0,
  NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5, 0,
  NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0,
  NOTE_E5, NOTE_D5, NOTE_E5, NOTE_A4, 0,
  
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_D5, NOTE_E5, NOTE_A4, 0,
  NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0,
  NOTE_C5, NOTE_A4, NOTE_B4, 0,
  
  NOTE_A4, NOTE_A4,
  //Repeat of first part
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
  NOTE_A4, NOTE_G4, NOTE_A4, 0,
  
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0,
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_C5, NOTE_D5, NOTE_B4, NOTE_B4, 0,
  NOTE_A4, NOTE_G4, NOTE_A4, 0,
  
  NOTE_E4, NOTE_G4, NOTE_A4, NOTE_A4, 0,
  NOTE_A4, NOTE_C5, NOTE_D5, NOTE_D5, 0,
  NOTE_D5, NOTE_E5, NOTE_F5, NOTE_F5, 0,
  NOTE_E5, NOTE_D5, NOTE_E5, NOTE_A4, 0,
  
  NOTE_A4, NOTE_B4, NOTE_C5, NOTE_C5, 0,
  NOTE_D5, NOTE_E5, NOTE_A4, 0,
  NOTE_A4, NOTE_C5, NOTE_B4, NOTE_B4, 0,
  NOTE_C5, NOTE_A4, NOTE_B4, 0,
  //End of Repeat
  
  NOTE_E5, 0, 0, NOTE_F5, 0, 0,
  NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5, NOTE_D5, 0, 0,
  NOTE_D5, 0, 0, NOTE_C5, 0, 0,
  NOTE_B4, NOTE_C5, 0, NOTE_B4, 0, NOTE_A4,
  
  NOTE_E5, 0, 0, NOTE_F5, 0, 0,
  NOTE_E5, NOTE_E5, 0, NOTE_G5, 0, NOTE_E5, NOTE_D5, 0, 0,
  NOTE_D5, 0, 0, NOTE_C5, 0, 0,
  NOTE_B4, NOTE_C5, 0, NOTE_B4, 0, NOTE_A4
};

int durations[] = {
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  4, 8, 4, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 4,
  
  4, 8,
  //Repeat of First Part
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 8, 8,
  8, 8, 8, 4, 8,
  
  8, 8, 4, 8, 8,
  4, 8, 4, 8,
  8, 8, 4, 8, 8,
  8, 8, 4, 4,
  //End of Repeat
  
  4, 8, 4, 4, 8, 4,
  8, 8, 8, 8, 8, 8, 8, 8, 4,
  4, 8, 4, 4, 8, 4,
  8, 8, 8, 8, 8, 2,
  
  4, 8, 4, 4, 8, 4,
  8, 8, 8, 8, 8, 8, 8, 8, 4,
  4, 8, 4, 4, 8, 4,
  8, 8, 8, 8, 8, 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);
  }
}