// ======================================================
// FAST GECKO / CICAK SOUND
// ======================================================

const int buzzerPin = 9;

enum State {
  IDLE,
  ON_STATE,
  OFF_STATE,
  PAUSE_STATE
};

State state = IDLE;

unsigned long t = 0;

int clickIndex = 0;

// Jumlah "cek"
const int totalClicks = 8;

// Frekuensi sempit (lebih realistis)
int freqPattern[] = {
  3200,
  3150,
  3180,
  3220,
  3170,
  3190,
  3210,
  3160
};

// ======================================================

void setup() {
  pinMode(buzzerPin, OUTPUT);

  randomSeed(analogRead(A0));
}

// ======================================================

void loop() {
  suaraCicak();
}

// ======================================================

void suaraCicak() {

  unsigned long now = millis();

  switch (state) {

    // ================= START =================
    case IDLE:

      clickIndex = 0;

      tone(buzzerPin, freqPattern[clickIndex]);

      t = now;

      state = ON_STATE;

      break;

    // ================= CLICK ON =================
    case ON_STATE:

      // ON sangat pendek = karakter "cek"
      if (now - t >= 8) {

        noTone(buzzerPin);

        t = now;

        state = OFF_STATE;
      }

      break;

    // ================= CLICK OFF =================
    case OFF_STATE:

      // OFF pendek juga
      if (now - t >= 12) {

        clickIndex++;

        if (clickIndex < totalClicks) {

          tone(buzzerPin, freqPattern[clickIndex]);

          t = now;

          state = ON_STATE;

        } else {

          t = now;

          state = PAUSE_STATE;
        }
      }

      break;

    // ================= PAUSE =================
    case PAUSE_STATE:

      // jeda antar kelompok suara
      if (now - t >= 700) {

        state = IDLE;
      }

      break;
  }
}