/// <summary>
/// Creates a new nuron on a given network, with a given activation
/// function and level depth. An index is required to be able to
/// refrence the nuron from outside the network.
/// </summary>
/// <param name="network">Network on wich to create the nuron</param>
/// <param name="func">Activation funciton of the nuron</param>
/// <param name="index">Index of the nuron</param>
/// <param name="level">Level of the nuron</param>
internal Nuron(NetworkAuto network, ActFunc func, int index, int level)
{
this.network = network;
this.func = func;
this.index = index;
this.level = level;
this.value = 0.0;
this.vprev = 0.0;
}
internal Nuron(NetworkAuto network, Nuron other)
{
this.network = network;
this.func = other.func;
this.index = other.index;
this.level = other.level;
this.value = 0.0;
this.vprev = 0.0;
}
///// <summary>
///// Obtains the axon that connects to this nuron from another given
///// nuron. Note that the order of the nurons is important. It returns
///// null if no sutch connection exists.
///// </summary>
///// <param name="index">Index of another nuron</param>
///// <returns>The axon conecting the nurons</returns>
//public Axon GetAxon(int index)
//{
// //checkes that we have not been disposed
// if (network == null) return null;
// foreach (int aid in inputs)
// {
// //checks each axon for a match
// if (aid == index) return network.GetAxon(index);
// }
// //we faild to find the axon
// return null;
//}
///// <summary>
///// Obtains the axon that connects to this nuron from another given
///// nuron. Note that the order of the nurons is important. It returns
///// null if no sutch connection exists.
///// </summary>
///// <param name="other">Another nuron</param>
///// <returns>The axon conecting the nurons</returns>
//public Axon GetAxon(Nuron other)
//{
// //checks that both nurons belong to the same network
// if (network != other.network) return null;
// //obtains the axon by the other's index
// return GetAxon(other.Index);
//}
////public Axon AddAxon(Nuron input, double weight)
////{
//// if (input.Level > this.Level)
//// {
//// //swaps the nurons if the level is swaped
//// return input.AddAxon(this, weight);
//// }
//// //enshures that the nurons are on diffrent levels
//// if (input.Level == this.Level) throw new
//// InvalidOperationException();
//// //enshures that the nurons belong to the same network
//// if (input.network != this.network) throw new
//// InvalidOperationException();
//// //calls upon the internal method
//// return AddAxonInit(input, weight);
////}
#endregion ////////////////////////////////////////////////////////////////////
#region Internal Methods...
///// <summary>
///// Connects the given input nuron to the current nuron with the
///// given weight. Note that it dose not check the topology of the
///// network before adding the axon, so care must be taken to avoid
///// redundent connections. If a connection already exists between
///// the two nurons, it returns that axon instead.
///// </summary>
///// <param name="input">Nuron to conect</param>
///// <param name="weight">Weight of the connection</param>
///// <returns>The axon between the nurons</returns>
//internal Axon AddAxonInit(Nuron input, double weight)
//{
// //makes shure our parent network hasn't been disposed
// if (network == null) throw new InvalidOperationException();
// //sees if we alreay contain a link to the input
// Axon ax = GetAxon(input.Index);
// if (ax == null)
// {
// //obtains an index to the sorce and target
// int source = this.Index;
// int target = input.Index;
// //creates the axon and adds it to our list
// ax = new Axon(source, target, weight);
// inputs.Add(ax);
// }
// else
// {
// //sets the axons weight to our new weight
// ax.Weight = weight;
// }
// return ax;
//}
/// <summary>
/// Clears all the data contained in this node. It is nessary to
/// call this when disposing of the parent network in order to
/// avoid cyclical refrences and potential memory leaks.
/// </summary>
internal void ClearData()
{
//deletes the network to avoid cyclic refrences
this.network = null;
}