unsigned long previousMillis = 0; // Stores the last time the LED state was updated
const unsigned long interval = 125; // Interval at which to change the sequence step (milliseconds)
int ledPins[] = {3,5,4,2}; 
int ccwledPins[]={12,10,9,11};       // Array of LED pins
int currentStep = 0; 
int cwcurrentStep = 0; 
int cwStep = 0;  
int ccwStep = 0;          // Tracks the current step in the sequence
const int numLeds = 4;
const int ccwnumLeds = 4;           // Total number of LEDs






void setup() {
  // Set all LED pins as outputs
  for (int i = 0; i < numLeds; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
  for(int a = 9; a < ccwnumLeds; a++){
    pinMode(ccwledPins[a], OUTPUT);
  }
}

void bubbleCw() { //Clockwise Rotation
  unsigned long currentMillis = millis(); // Get the current time

  // Check if the required interval has passed
  if (currentMillis - previousMillis >= interval) {
    // Save the current time for the next comparison
    previousMillis = currentMillis;

    // Turn off the previous LED
    digitalWrite(ledPins[currentStep], LOW);
    digitalWrite(ccwledPins[currentStep],LOW);

    // Move to the next step in the sequence
    currentStep++;

    // If we've reached the end of the sequence, loop back to the first LED
    if (currentStep >= numLeds) {
      currentStep = 0;
    }

    // Turn on the current LED
    digitalWrite(ledPins[currentStep], HIGH);
    digitalWrite(ccwledPins[currentStep],HIGH);
  }
}



void loop(){
  bubbleCw();
}