const int ports[] = {
  13,
  12,
  11,
  10,
  9,
  8, 
};

const int rgb[] = {7, 6, 5};

#define x 1

void setup() {
  for (int i = 0; i < 6; i++) {
    pinMode(ports[i], OUTPUT);
  }
    pinMode(rgb[0], OUTPUT);
    pinMode(rgb[1], OUTPUT);
    pinMode(rgb[2], OUTPUT);

}

void loop() {
  if (x) {
    digitalWrite(rgb[1], HIGH);
    digitalWrite(rgb[0], LOW);

    for (int i = 0; i < 6; i++) {
      digitalWrite(ports[i], HIGH);
      delay(500);
      digitalWrite(ports[i], LOW);
    }
  } else {
      digitalWrite(rgb[0], HIGH);
      digitalWrite(rgb[1], LOW);

    for (int i = 5; i >= 0; i--) {
      digitalWrite(ports[i], HIGH);
      delay(500);
      digitalWrite(ports[i], LOW);
    }
  }
}