private static bool HouseIsValid(Floor floor, Walls walls, Roof roof)
{
return((floor != null && walls != null && roof != null) ||
(floor != null && walls != null && roof == null) ||
(floor != null && walls == null && roof == null) ||
(floor == null && walls == null && roof == null));
}
public void BuildRoof()
{
Roof roof = new Roof();
roof.SetHeight(100);
this.shop.SetRoof(roof);
}
public House(string houseAddress, Floor floor, Walls walls, Roof roof)
{
if (!HouseIsValid(floor, walls, roof))
{
throw new ArgumentException("House is not valid!");
}
this.houseAddress = houseAddress;
this.floor = floor;
this.walls = walls;
this.roof = roof;
}