braces.cc

// Braces would look like this (give or take a few new lines :P):

if (angle <= 30 || angle >= 330) {
  return Car::EDirection::RIGHT;
} else if (angle <= 60) {
  return Car::EDirection::UP_RIGHT;
} else if (angle <= 120) {
  return Car::EDirection::UP;
} else if (angle <= 150) {
  return Car::EDirection::UP_LEFT;
} else if (angle <= 210) {
  return Car::EDirection::LEFT;
} else if (angle <= 240) {
  return Car::EDirection::DOWN_LEFT;
} else if (angle <= 300) {
  return Car::EDirection::DOWN;
} else if (angle <= 330) {
  return Car::EDirection::DOWN_RIGHT;
}


// Not this, which would indeed by horrible, but completely unnecessary:

if (angle <= 30 || angle >= 330) {
  return Car::EDirection::RIGHT;
} else {
  if (angle <= 60) {
    return Car::EDirection::UP_RIGHT;
  } else {
    if (angle <= 120) {
      return Car::EDirection::UP;
    } else {
      if (angle <= 150) {
        return Car::EDirection::UP_LEFT;
      } else {
        if (angle <= 210) {
          return Car::EDirection::LEFT;
        } else {
          if (angle <= 240) {
            return Car::EDirection::DOWN_LEFT;
          } else {
            if (angle <= 300) {
              return Car::EDirection::DOWN;
            } else {
              if (angle <= 330) {
                return Car::EDirection::DOWN_RIGHT;
              }
            }
          }
        }
      }
    }
  }
}

// If you didn't use else, you'd have exactly the same braces and nesting as my first example
// (but might have different new lines, depending on your agreed style)

if (angle <= 30 || angle >= 330) {
  return Car::EDirection::RIGHT;
}
if (angle <= 60) {
  return Car::EDirection::UP_RIGHT;
}
if (angle <= 120) {
  return Car::EDirection::UP;
}
if (angle <= 150) {
  return Car::EDirection::UP_LEFT;
}
if (angle <= 210) {
  return Car::EDirection::LEFT;
}
if (angle <= 240) {
  return Car::EDirection::DOWN_LEFT;
}
if (angle <= 300) {
  return Car::EDirection::DOWN;
}
if (angle <= 330) {
  return Car::EDirection::DOWN_RIGHT;
}