const int ledPins[] = { 23, 22, 33, 25, 26, 27 }; // LED pins from left to right
const int numLeds = sizeof(ledPins) / sizeof(ledPins[0]);
const int buttonPin = 4; // Pushbutton 

int sequenceDirection = 1; // Initial direction: forward
int currentLed = 0; // Index of the current LED

void setup() {
  for (int i = 0; i < numLeds; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
  pinMode(buttonPin, INPUT_PULLUP);
}

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

  if (buttonState == LOW) {
    sequenceDirection *= -1;
    delay(100);
    Serial.println("Button Pressed! Direction: " + String(sequenceDirection));
  }

  currentLed += sequenceDirection; // Move to the next LED

  // Wrap around the LED index if it goes beyond the array bounds
  if (currentLed >= numLeds) {
    currentLed = 0;
  } else if (currentLed < 0) {
    currentLed = numLeds - 1;
  }

  // Turn off all LEDs
  for (int i = 0; i < numLeds; i++) {
    digitalWrite(ledPins[i], LOW);
  }

  // Turn on the current LED
  digitalWrite(ledPins[currentLed], HIGH);

  delay(250); // Delay between LED changes
}