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

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

#include "pitches.h"

#define BUZZER_PIN 9

int melody[] = {
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_FS3, NOTE_D3, NOTE_B2, NOTE_A3, NOTE_FS3, NOTE_B2, NOTE_D3, NOTE_FS3, NOTE_A3, NOTE_FS3, NOTE_D3, NOTE_B2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_B3, NOTE_G3, NOTE_E3, NOTE_G3, NOTE_B3, NOTE_E4, NOTE_G3, NOTE_B3, NOTE_E4, NOTE_B3, NOTE_G4, NOTE_B4,
  
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2, 
  NOTE_F3, NOTE_A2, NOTE_A2, NOTE_DS3, NOTE_A2, NOTE_A2, NOTE_E3, NOTE_F3,
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2,
  NOTE_F3, NOTE_A2, NOTE_A2, NOTE_DS3,
  
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2, 
  NOTE_F3, NOTE_A2, NOTE_A2, NOTE_DS3, NOTE_A2, NOTE_A2, NOTE_E3, NOTE_F3,
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2,
  NOTE_A3, NOTE_F3, NOTE_D3, NOTE_A3, NOTE_F3, NOTE_D3, NOTE_C4, NOTE_A3, NOTE_F3, NOTE_A3, NOTE_F3, NOTE_D3,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_CS3, NOTE_CS3, NOTE_CS4, NOTE_CS3, NOTE_CS3, NOTE_B3, NOTE_CS3, NOTE_CS3, 
  NOTE_A3, NOTE_CS3, NOTE_CS3, NOTE_G3, NOTE_CS3, NOTE_CS3, NOTE_GS3, NOTE_A3,
  NOTE_B2, NOTE_B2, NOTE_B3, NOTE_B2, NOTE_B2, NOTE_A3, NOTE_B2, NOTE_B2,
  NOTE_G3, NOTE_B2, NOTE_B2, NOTE_F3,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_B3, NOTE_G3, NOTE_E3, NOTE_G3, NOTE_B3, NOTE_E4, NOTE_G3, NOTE_B3, NOTE_E4, NOTE_B3, NOTE_G4, NOTE_B4,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_FS3, NOTE_DS3, NOTE_B2, NOTE_FS3, NOTE_DS3, NOTE_B2, NOTE_G3, NOTE_D3, NOTE_B2, NOTE_DS4, NOTE_DS3, NOTE_B2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_E4, NOTE_B3, NOTE_G3, NOTE_G4, NOTE_E4, NOTE_G3, NOTE_B3, NOTE_D4, NOTE_E4, NOTE_G4, NOTE_E4, NOTE_G3,  
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2, 
  NOTE_F3, NOTE_A2, NOTE_A2, NOTE_DS3, NOTE_A2, NOTE_A2, NOTE_E3, NOTE_F3,
  NOTE_A2, NOTE_A2, NOTE_A3, NOTE_A2, NOTE_A2, NOTE_G3, NOTE_A2, NOTE_A2,
  NOTE_A3, NOTE_F3, NOTE_D3, NOTE_A3, NOTE_F3, NOTE_D3, NOTE_C4, NOTE_A3, NOTE_F3, NOTE_A3, NOTE_F3, NOTE_D3,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2,
  
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2, 
  NOTE_C3, NOTE_E2, NOTE_E2, NOTE_AS2, NOTE_E2, NOTE_E2, NOTE_B2, NOTE_C3,
  NOTE_E2, NOTE_E2, NOTE_E3, NOTE_E2, NOTE_E2, NOTE_D3, NOTE_E2, NOTE_E2,
  NOTE_B3, NOTE_G3, NOTE_E3, NOTE_B2, NOTE_E3, NOTE_G3, NOTE_C4, NOTE_B3, NOTE_G3, NOTE_B3, NOTE_G3, NOTE_E3
};

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

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);
  }
}