#include <Servo.h>

// Pin Definitions
const int buttonPin = 2;  // Button to start/stop the Ferris wheel
const int ledPins[] = {3, 4, 5, 6, 7}; // LEDs representing cabins
const int ledCount = 5;   // Number of LEDs

Servo ferrisServo; // Servo motor for wheel rotation
const int servoPin = 9;

// Variables
bool isRunning = false;  // Ferris wheel running state
int ledIndex = 0;        // Current LED index

void setup() {
  pinMode(buttonPin, INPUT_PULLUP);  // Button setup with pull-up
  ferrisServo.attach(servoPin);     // Attach servo to pin

  // Initialize LEDs
  for (int i = 0; i < ledCount; i++) {
    pinMode(ledPins[i], OUTPUT);
    digitalWrite(ledPins[i], LOW);
  }

  // Set servo to starting position
  ferrisServo.write(0);
}

void loop() {
  // Check button press to toggle the running state
  if (digitalRead(buttonPin) == LOW) {
    delay(200); // Debounce delay
    isRunning = !isRunning;
  }

  if (isRunning) {
    rotateFerrisWheel();
  }
}

// Function to simulate Ferris wheel rotation
void rotateFerrisWheel() {
  // Turn on the current LED and turn off the previous one
  for (int i = 0; i < ledCount; i++) {
    digitalWrite(ledPins[i], (i == ledIndex) ? HIGH : LOW);
  }

  // Move servo slightly to simulate rotation
  ferrisServo.write(ledIndex * (180 / ledCount));

  // Move to the next LED
  ledIndex = (ledIndex + 1) % ledCount;

  delay(1000); // Pause for rotation
}