gistfile1.ino

if (currentRange > stopRange) {
    forward();
    currentRoutine = 'd';
    actionDelay = 50;
  }else {
    
    if (currentRoutine != 'e') {
      engine_stop();
      delay(400);
      back();
      delay(random(3,6) * 100);
      engine_stop();
      delay(300);
    }
    
    currentRoutine = 'e';
    
    if (random(0,1) == 1) {
      turn_left();
    }else {
      turn_right();
    }
    actionDelay = random(4,7) * 100;
  }