int buttonPin = 12;  // Button connected to pin 12
int ledPins[] = {2, 3, 4, 5, 6, 7}; // LEDs connected to pins 2, 3, 4, 5, 6, 7
int buttonState = 0;
int lastButtonState = 0;

void setup() {
  pinMode(buttonPin, INPUT);
  for (int i = 0; i < 6; i++) {
    pinMode(ledPins[i], OUTPUT);
  }
}

void loop() {
  buttonState = digitalRead(buttonPin); // Read the button state
  
  // Check if button was pressed (transition from LOW to HIGH)
  if (buttonState == HIGH && lastButtonState == LOW) {
    int ledsToLight = random(1, 7); // Choose a random number of LEDs to light (from 1 to 6)
    lightRandomLeds(ledsToLight);
    delay(100); // Small delay to debounce the button
  }
  
  lastButtonState = buttonState; // Save the current state for the next loop
}

void lightRandomLeds(int ledsToLight) {
  // Turn off all LEDs first
  for (int i = 0; i < 6; i++) {
    digitalWrite(ledPins[i], LOW);
  }

  // Randomly select LEDs to turn on
  int count = 0;
  while (count < ledsToLight) {
    int ledIndex = random(0, 6); // Randomly select an LED from the array
    if (digitalRead(ledPins[ledIndex]) == LOW) { // Check if the LED is off
      digitalWrite(ledPins[ledIndex], HIGH); // Turn it on
      count++; // Increment the count of LEDs turned on
    }
  }
}