// Define segment pins
const int segmentPins[] = {1, 2, 3, 4, 5, 6, 7, 8}; // a, b, c, d, e, f, g, dot
// Define digit pins
const int digitPins[] = {9, 10, 11, 12}; // d4, d3, d2, d1

// Other constants
const int delayTime = 100;
const int flashCount = 5;

void setup() {
  // Initialize all pins as OUTPUT
  for (int pin : segmentPins) {
    pinMode(pin, OUTPUT);
    digitalWrite(pin, HIGH); // Turn off segments
  }
  
  for (int pin : digitPins) {
    pinMode(pin, OUTPUT);
  }
}

void loop() {
  // Call display patterns in sequence
  performPattern(roulette, 2);
  performPattern(zigzag, 2);
  performPattern(circles, 2);
  flash();
}

// Function to perform a specific pattern
void performPattern(void (*patternFunction)(int), int repetitions) {
  for (int i = 0; i < repetitions; i++) {
    patternFunction(delayTime);
    delay(500);
  }
}

void pickDigit(int x) {
  for (int i = 0; i < 4; i++) {
    digitalWrite(digitPins[i], (i + 1 == x) ? HIGH : LOW);
  }
}

void clearLEDs() {
  for (int pin : segmentPins) {
    digitalWrite(pin, HIGH); // Turn off segments
  }
}

void roulette(int del) {
  for (int i = 0; i < 2; i++) {
    clearLEDs();
    digitalWrite(segmentPins[0], LOW); // Turn on segment a
    for (int j = 1; j <= 4; j++) {
      pickDigit(j);
      delay(del);
    }
    digitalWrite(segmentPins[0], HIGH); // Turn off segment a

    // Sequence of segment lights
    for (int k = 5; k <= 6; k++) {
      digitalWrite(segmentPins[k], LOW); // Turn on f and e
      delay(del);
      digitalWrite(segmentPins[k], HIGH); // Turn off f and e
    }
    for (int j = 3; j >= 1; j--) {
      pickDigit(j);
      delay(del);
    }
    clearLEDs();
  }
}

void zigzag(int del) {
  for (int i = 0; i < 2; i++) {
    digitalWrite(segmentPins[0], LOW); // Turn on segment a
    for (int j = 1; j <= 4; j++) {
      pickDigit(j);
      delay(del);
    }
    digitalWrite(segmentPins[0], HIGH); // Turn off segment a
    for (int j = 5; j < 8; j++) {
      digitalWrite(segmentPins[j], LOW); // Turn on f, g
      delay(del);
      digitalWrite(segmentPins[j], HIGH); // Turn off f, g
    }
    clearLEDs();
  }
}

void circles(int del) {
  for (int i = 0; i < 2; i++) {
    digitalWrite(segmentPins[0], LOW);
    digitalWrite(segmentPins[1], LOW);
    digitalWrite(segmentPins[5], LOW);
    digitalWrite(segmentPins[6], LOW);
    pickDigit(1);
    delay(250);
    
    for (int j = 0; j < 3; j++) {
      digitalWrite(segmentPins[0], HIGH);
      digitalWrite(segmentPins[1], HIGH);
      digitalWrite(segmentPins[5], HIGH);
      digitalWrite(segmentPins[2 + j], LOW);
      pickDigit(j + 2);
      delay(250);
    }
    clearLEDs();
  }
}

// Function to display 0000
void nyala() {
  for (int i = 0; i < 4; i++) {
    digitalWrite(digitPins[i], HIGH); // Turn on digit pins
  }
}

// Flashing effect
void flash() {
  for (int i = 0; i < flashCount; i++) {
    nyala();
    delay(250);
    clearLEDs();
    delay(500);
  }
}