public Rotor(LetterSet letterSet, int key)
{
Key = key;
this.letterSet = letterSet;
InitialOffset = key - (Base * (Key / Base));
Offset = InitialOffset;
}
/// <summary>
/// Constructs a <see cref="SetupArgs"/> with the specified letterset.
/// </summary>
/// <param name="letterSet">The letterset to use.</param>
public SetupArgs(LetterSet letterSet)
{
LetterSet = letterSet ?? throw new ArgumentNullException(nameof(letterSet));
int[] steckering = new int[LetterSet.Count];
for (int i = 0; i < LetterSet.Count; i++)
{
steckering[i] = i;
}
Steckering = new Steckering(steckering);
}
public RotorCollection(LetterSet letterSet, int rotorCount)
{
if (rotorCount < 1)
{
throw new ArgumentException(nameof(rotorCount));
}
this.letterSet = letterSet ?? throw new ArgumentNullException(nameof(letterSet));
rotors = new List <Rotor>();
for (int i = 0; i < rotorCount; i++)
{
rotors.Add(new Rotor(letterSet, PrimeNumbers[i]));
}
}
/// <summary>
/// Deciphers the specified character.
/// </summary>
/// <param name="c">The character to decipher.</param>
/// <param name="peek">True if the rotors should not be rotated.</param>
/// <returns>The deciphered character.</returns>
public char Decipher(char c, bool peek = false)
{
int index = LetterSet.IndexOf(c);
if (index == -1)
{
return(HandleInvalid(c, peek));
}
index = rotors.Decipher(index, peek);
index = plugboard.Decipher(index);
return(LetterSet[index]);
}
//private readonly Steckering reverseSteckering;
#endregion
#region Constructors
/// <summary>
/// Constructs the <see cref="Plugboard"/>.
/// </summary>
/// <param name="letterSet">The letterset to compare to the steckering.</param>
/// <param name="steckering">The steckering to use.</param>
public Plugboard(LetterSet letterSet, Steckering steckering)
{
if (letterSet == null)
{
throw new ArgumentNullException(nameof(letterSet));
}
this.steckering = steckering ?? throw new ArgumentNullException(nameof(steckering));
if (steckering.Count != letterSet.Count)
{
throw new ArgumentException(nameof(steckering));
}
//reverseSteckering = steckering.Reverse();
}
/// <summary>
/// Constructs the <see cref="Plugboard"/>.
/// </summary>
/// <param name="letterSet">The letterset to compare to the steckering.</param>
/// <param name="steckering">The steckering to use.</param>
public Plugboard(LetterSet letterSet, Steckering steckering)
{
if (letterSet == null)
{
throw new ArgumentNullException(nameof(letterSet));
}
this.steckering = steckering ?? throw new ArgumentNullException(nameof(steckering));
if (steckering.Count != letterSet.Count)
{
throw new ArgumentException($"Letterset and Steckering count do not match!\n" +
$"Letterset: {letterSet.Count}, Steckering: {steckering.Count}",
nameof(steckering));
}
}
public Plugboard(LetterSet letterSet, Steckering steckering)
{
this.letterSet = letterSet ?? throw new ArgumentNullException(nameof(letterSet));
this.steckering = steckering ?? throw new ArgumentNullException(nameof(steckering));
if (steckering.Count != letterSet.Count)
{
throw new ArgumentException(nameof(steckering));
}
reverseSteckering = steckering.Reverse();
/*reverseSteckering = new int[steckering.Length];
* for (int i = 0; i < steckering.Length; i++) {
* reverseSteckering[i] = Array.IndexOf(steckering, i);
* }*/
}
/// <summary>
/// Constructs the <see cref="RotorCollection"/>.
/// </summary>
/// <param name="letterSet">The letterset used by the rotors for calculation.</param>
/// <param name="rotorCount">The number of rotors to use.</param>
public RotorCollection(LetterSet letterSet, int rotorCount)
{
if (rotorCount < 1)
{
throw new ArgumentException(nameof(rotorCount));
}
if (letterSet == null)
{
throw new ArgumentNullException(nameof(letterSet));
}
rotors = new Rotor[rotorCount];
for (int i = 0; i < rotorCount; i++)
{
rotors[i] = new Rotor(letterSet, PrimeNumbers[i]);
}
}
/// <summary>
/// Constructs the <see cref="RotorCollection"/>.
/// </summary>
/// <param name="letterSet">The letterset used by the rotors for calculation.</param>
/// <param name="rotorKeys">
/// The list of prime number keys describing the offset and number of rotors.
/// </param>
public RotorCollection(LetterSet letterSet, RotorKeys rotorKeys, bool rotateRotors)
{
if (letterSet == null)
{
throw new ArgumentNullException(nameof(letterSet));
}
if (rotorKeys == null)
{
throw new ArgumentNullException(nameof(rotorKeys));
}
rotors = new Rotor[rotorKeys.Count];
for (int i = 0; i < rotorKeys.Count; i++)
{
rotors[i] = new Rotor(letterSet, rotorKeys[i]);
}
this.rotateRotors = rotateRotors;
}
