/*
Nama  : Aditya Pratama Wahyu Saputra
Kelas : IFB6B
NIM   : 2011081
*/

const int buttonPin = 6;
const int led1 = 2;
const int led2 = 3;
const int led3 = 4;
const int led4 = 5;

int buttonState;
int lastButtonState = LOW;
bool ledsOn = false;

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);
  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);

  // Matikan LED saat awal
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  digitalWrite(led4, LOW);
}

void loop() {
  buttonState = digitalRead(buttonPin);

  // Cek apakah tombol ditekan
  if (buttonState == LOW && lastButtonState == HIGH) {
    // Ubah status LED
    if (ledsOn) {
      ledsOn = false;
    } else {
      ledsOn = true;
    }
  } 

  // Nyalakan atau matikan LED berdasarkan status
  if (ledsOn) {
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
  } else {
    digitalWrite(led1, LOW);
    digitalWrite(led2, LOW);
    digitalWrite(led3, LOW);
    digitalWrite(led4, LOW);
  }

  lastButtonState = buttonState;
}