Untitled

One Constructor for a Class and its Nested Classes
class Room
{
    public string Name;
    public int Width;
    public int Height;
    // and so on...

    public class Suspect
    {
        public string Name;
        public bool PlaysCroquet;
    }

    public class Weapon
    {
        public string Name;
        public bool IsShiny;
    }
}

public Room(string Name, int Width, int Height)
{
    this.Name = Name;
    this.Width = Width;
    this.Height = Height;
}

Room[i] = new Room("Conservatory", 7, 3);

Room[i] = new Room("Library", 8, 5, "Professor Plum", false, "Candlestick", true);

public class Room
{
    public Room(Suspect suspect, Weapon weapon)
    {
        SuspectInRoom = suspect;
        WeaponInRoom = weapon;
    }

    public Suspect SuspectInRoom { get; set; }
    public Weapon WeaponInRoom { get; set; }
}

// Example usage:

Suspect coronelCustard = new Suspect("Coronel Custard");
Weapon musket = new Weapon("Musket");

Room someRoom = new Room(coronelCustard, musket);

// Then your room can be used to access all sorts of data.

Console.WriteLine(someRoom.SuspectInRoom.Nickname); // "The Big Kahuna"
Console.WriteLine(someRoom.WeaponInRoom.AttackDamage); // "20"

Room someRoom = new Room(new Suspect("Colonel Custard"), new Weapon("Musket"));

var room = new Room { Name = "Library",
                         Width = 7,
                         Height = 3,
                         Suspect = new Suspect { Name = "Professor Plum",
                                                 PlaysCroquet = false },
                         Weapon = new Weapon { Name = "Candlestick",
                                               IsShiny = true }
                        };

Room[i] = new Room("Library", 8, 5, new Suspect("Professor Plum", false), new Weapon("Candlestick", true));