Nested class examples

Hierarchy.cs

namespace WindowsGame1.PhysicalModel
{
    public class Body : PhysicalObject
    {
        public Body() : this("body") { }

        public Body(string name)
            : base(name)
        {
            Torso = new torso();
        }

        public torso Torso { get; set; }

        public class bone : PhysicalObject
        {
            public bone(string name) : base(name) { }
        }

        public class torso
        {
            public torso()
            {
                Left = new side("Left");
                Right = new side("Right");
            }

            public side Right { get; set; }
            public side Left { get; set; }

            public class side
            {
                public side(string name)
                {
                    Name = name;
                    Arm = new arm(this.Name);
                }

                public string Name { get; private set; }
                public arm Arm { get; set; }

                public class arm
                {
                    public arm(string parentName)
                    {
                        Name = parentName + "Arm";
                        Hand = new hand(parentName);
                    }

                    public string Name { get; private set; }
                    public hand Hand { get; set; }

                    public class hand
                    {
                        public hand(string parentName)
                        {
                            Name = parentName + "Hand";
                            Wrist = new wrist();
                            Palm = new palm();
                            Fingers = new fingers(this.Name);
                        }

                        public string Name { get; private set; }
                        public fingers Fingers { get; set; }
                        public palm Palm { get; set; }
                        public wrist Wrist { get; set; }

                        public class fingers
                        {
                            public fingers(string parentName)
                            {
                                Thumb = new finger(parentName + "Thumb", false);
                                Index = new finger(parentName + "Index");
                                Middle = new finger(parentName + "Middle");
                                Ring = new finger(parentName + "Ring");
                                Small = new finger(parentName + "Small");
                            }

                            public finger Thumb;
                            public finger Index;
                            public finger Middle;
                            public finger Ring;
                            public finger Small;

                            public class finger
                            {
                                public finger(string parentName, bool hasMiddlePhalanx = true)
                                {
                                    Phalanges = new phalanges
                                    {
                                        Proximal = new phalanges.phalanx(parentName + "Proximal"),
                                        Middle = hasMiddlePhalanx ? new phalanges.phalanx(parentName + "Middle") : null,
                                        Distal = new phalanges.phalanx(parentName + "Distal")
                                    };
                                }

                                public phalanges Phalanges;

                                public class phalanges
                                {
                                    public phalanx Proximal;
                                    public phalanx Middle;
                                    public phalanx Distal;

                                    public class phalanx : bone
                                    {
                                        public phalanx(string name) : base(name + "Phalanx") { }
                                    }
                                }
                            }
                        }

                        public class palm
                        {
                            // todo: create metacarpals
                            public List<metacarpal> metacarpals;

                            public class metacarpal : bone
                            {
                                public metacarpal(string name) : base(name) { }
                            }
                        }

                        public class wrist
                        {
                            // todo: ctor should create wrist bones
                            public List<bone> bones;
                        }
                    }
                }
            }
        }

        // Left Index Finger
        public PhysicalObject LeftIndexFingerTip { get { return Torso.Left.Arm.Hand.Fingers.Index.Phalanges.Distal; } }
        public PhysicalObject LeftIndexFingerMiddle { get { return Torso.Left.Arm.Hand.Fingers.Index.Phalanges.Middle; } }
        public PhysicalObject LeftIndexFingerKnuckle { get { return Torso.Left.Arm.Hand.Fingers.Index.Phalanges.Proximal; } }

        // Left Middle Finger
        public PhysicalObject LeftMiddleFingerTip { get { return Torso.Left.Arm.Hand.Fingers.Middle.Phalanges.Distal; } }
        public PhysicalObject LeftMiddleFingerMiddle { get { return Torso.Left.Arm.Hand.Fingers.Middle.Phalanges.Middle; } }
        public PhysicalObject LeftMiddleFingerKnuckle { get { return Torso.Left.Arm.Hand.Fingers.Middle.Phalanges.Proximal; } }

        // Left Ring Finger
        public PhysicalObject LeftRingFingerTip { get { return Torso.Left.Arm.Hand.Fingers.Ring.Phalanges.Distal; } }
        public PhysicalObject LeftRingFingerMiddle { get { return Torso.Left.Arm.Hand.Fingers.Ring.Phalanges.Middle; } }
        public PhysicalObject LeftRingFingerKnuckle { get { return Torso.Left.Arm.Hand.Fingers.Ring.Phalanges.Proximal; } }

        // Left Small Finger
        public PhysicalObject LeftSmallFingerTip { get { return Torso.Left.Arm.Hand.Fingers.Small.Phalanges.Distal; } }
        public PhysicalObject LeftSmallFingerMiddle { get { return Torso.Left.Arm.Hand.Fingers.Small.Phalanges.Middle; } }
        public PhysicalObject LeftSmallFingerKnuckle { get { return Torso.Left.Arm.Hand.Fingers.Small.Phalanges.Proximal; } }
    }
}

WorkersAccessProtected.cs

void Main()
{
	ABase aBase = new ADerived();
	aBase.DoWork();
}

public partial class ABase
{
	protected int state1 = 1;
	protected int state2 = 2;
	List<ABase> workers;
	
	public ABase()
	{
		workers = new List<ABase>();
		CreateWorkers(workers);
	}
	
	protected virtual void CreateWorkers(List<ABase> workers)
	{
	}
	
	public ABase(ABase aBase)
	{
		this.Target = aBase;
	}
	
	public virtual void DoWork()
	{
		foreach (var worker in this.workers)
		{
			worker.DoWork();
		}
	}
	
	protected ABase Target { get; private set; }
}

public partial class ABase
{
	public class Worker1 : ABase
	{
		public Worker1(ABase aBase) : base(aBase) { }
		
		public override void DoWork()
		{
			Console.WriteLine (Target.state1);
		}
	}
	
	public class Worker2 : ABase
	{
		public Worker2(ABase aBase) : base(aBase) { }
	
		public override void DoWork()
		{
			Console.WriteLine (Target.state2);
		}
	}
}

public class ADerived : ABase
{
	protected override void CreateWorkers(List<ABase> workers) 
	{
		workers.Add(new Worker1(this));
		workers.Add(new Worker2(this));
	}
}