// INTERUPT-PERCOBAAN 2
int ledPin[] = {4, 5, 6, 9, 10, 11};
int rotaryPin = A0;
int keadaanVariasi = 0;
int delayLed;
void setup() {
  Serial.begin(9600);
  pinMode(rotaryPin, INPUT);
  for (int i = 0; i < 6; i++) {
    pinMode(ledPin[i], OUTPUT);
  }
  attachInterrupt(digitalPinToInterrupt(3), variasi, RISING);
}
void loop() {
  delayLed = analogRead(rotaryPin);
  delayLed = map(delayLed, 0, 1023, 10, 1000);

  switch (keadaanVariasi)
  {
    case 0:
      kananKiri();
      break;

    case 1:
      kiriKanan();
      break;

    case 2:
      tengahKananKiri();
      break;

    default:
      break;
  }
}
void variasi() {
  delay(100);
  keadaanVariasi++;
  Serial.print("keadaanVariasi=");
  Serial.println(keadaanVariasi);
  if (keadaanVariasi > 2) keadaanVariasi = 0;
}
void kananKiri() {
  for (int i = 0; i < 6; i++) {
    digitalWrite(ledPin[i], HIGH);
    delay(delayLed);
    digitalWrite(ledPin[i], LOW);
    delay(delayLed);
    if (keadaanVariasi != 0) break;
  }
}
void kiriKanan() {
  for (int i = 5; i > -1; i--) {
    digitalWrite(ledPin[i], HIGH);
    delay(delayLed);
    digitalWrite(ledPin[i], LOW);
    delay(delayLed);
    if (keadaanVariasi != 1) break;
  }
}
void tengahKananKiri() {
  int angkaGanjil = 1;
  for (int i = 2; i > -1; i--) {
    digitalWrite(ledPin[i], HIGH);
    digitalWrite(ledPin[i + angkaGanjil], HIGH);
    delay(delayLed);
    digitalWrite(ledPin[i], LOW);
    digitalWrite(ledPin[i + angkaGanjil], LOW);
    delay(delayLed);
    angkaGanjil += 2;
    if (keadaanVariasi != 2) break;
  }
} //RIDHO MOHAMMAD AZRRIL D400210120