const int buzzerPin = 8;  // Pin untuk buzzer
const int redPin = 9;     // Pin untuk LED Merah
const int greenPin = 10;  // Pin untuk LED Hijau
const int bluePin = 11;   // Pin untuk LED Biru

// Nada untuk lagu "SPARKLE"
#define NOTE_C4  262
#define NOTE_D4  294
#define NOTE_E4  330
#define NOTE_F4  349
#define NOTE_G4  392
#define NOTE_A4  440
#define NOTE_B4  494
#define NOTE_C5  523
#define NOTE_D5  587
#define NOTE_E5  659
#define NOTE_F5  698
#define NOTE_G5  784
#define NOTE_A5  880
#define NOTE_B5  988

int melody[] = {
  NOTE_E4, NOTE_E4, NOTE_F4, NOTE_G4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_D4,
  NOTE_C4, NOTE_C4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4,
  NOTE_E4, NOTE_E4, NOTE_F4, NOTE_G4, NOTE_G4, NOTE_F4, NOTE_E4, NOTE_D4,
  NOTE_C4, NOTE_C4, NOTE_D4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4, NOTE_E4
};

int noteDurations[] = {
  4, 4, 4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4, 4, 4,
  4, 4, 4, 4, 4, 4, 4, 4
};

// Fungsi untuk mengatur warna LED RGB
void setColor(int red, int green, int blue) {
  analogWrite(redPin, red);
  analogWrite(greenPin, green);
  analogWrite(bluePin, blue);
}

void setup() {
  pinMode(buzzerPin, OUTPUT);   // Inisialisasi pin buzzer sebagai output
  pinMode(redPin, OUTPUT);      // Inisialisasi pin merah sebagai output
  pinMode(greenPin, OUTPUT);    // Inisialisasi pin hijau sebagai output
  pinMode(bluePin, OUTPUT);     // Inisialisasi pin biru sebagai output
}

void loop() {
  for (int thisNote = 0; thisNote < sizeof(melody) / sizeof(melody[0]); thisNote++) {
    int noteDuration = 1000 / noteDurations[thisNote];
    
    // Atur warna LED berdasarkan nada yang dimainkan
    switch (melody[thisNote]) {
      case NOTE_C4: setColor(255, 0, 0); break;  // Merah
      case NOTE_D4: setColor(255, 127, 0); break;  // Oranye
      case NOTE_E4: setColor(255, 255, 0); break;  // Kuning
      case NOTE_F4: setColor(0, 255, 0); break;    // Hijau
      case NOTE_G4: setColor(0, 0, 255); break;    // Biru
      case NOTE_A4: setColor(75, 0, 130); break;   // Indigo
      case NOTE_B4: setColor(148, 0, 211); break;  // Ungu
      case NOTE_C5: setColor(255, 255, 255); break;  // Putih
      case NOTE_D5: setColor(255, 192, 203); break;  // Pink
      case NOTE_E5: setColor(0, 255, 255); break;  // Cyan
      case NOTE_F5: setColor(255, 165, 0); break;  // Oranye Tua
      case NOTE_G5: setColor(255, 105, 180); break;  // Hot Pink
      case NOTE_A5: setColor(144, 238, 144); break;  // Light Green
      case NOTE_B5: setColor(216, 191, 216); break;  // Thistle
      default: setColor(255, 255, 255); break;     // Putih untuk nada lainnya
    }
    
    tone(buzzerPin, melody[thisNote], noteDuration);  // Mainkan nada
    int pauseBetweenNotes = noteDuration * 1.3;
    delay(pauseBetweenNotes);
    noTone(buzzerPin);
  }
}