/// <summary>
/// Generates a word from the given wordset and size parameters.
/// </summary>
/// <param name="set"></param>
/// <param name="minSize"></param>
/// <param name="maxSize"></param>
/// <returns></returns>
public static string Generate(WordSet set, int minSize, int maxSize)
{
string word = "";
//Loop until we find a fit
while (true)
{
//Get the next letter
var next = set.next(word);
//If the word is too large, restart
if (word.Length + 1 > maxSize)
{
word = "";
}
//If the word is about to terminate
if (next == ' ')
{
//If the word is too small, retry
if (word.Length < minSize)
{
word = "";
continue;
}
//If the result word already exists in the wordset's source, skip
if (set.containsSourceWord(word))
{
word = "";
continue;
}
break;
}
//Append the letter to the word
word += next;
}
return(word.Trim());
}
/// <summary>
/// "Mutates" an existing word by selecting an existing (random length) substring
/// and generating a new word from the substring base.
/// </summary>
/// <param name="set"></param>
/// <param name="wordSrc"></param>
/// <param name="minSize"></param>
/// <param name="maxSize"></param>
/// <param name="minRand"></param>
/// <returns></returns>
public static string Mutate(WordSet set, string wordSrc, int minSize, int maxSize, int minRand)
{
Random r = new Random(Environment.TickCount);
if (minRand > wordSrc.Length)
{
minRand = wordSrc.Length - 1;
}
//Create a substring of random length from the beginning
string subStr = wordSrc.Substring(0, r.Next(wordSrc.Length - minRand) + minRand);
//Loop until we find a word that fits
string word = subStr;
while (true)
{
//If the word is too long, restart
if (word.Length + 1 > maxSize)
{
//If we're stuck in a loop with the original, return nothing
if (word == subStr)
{
return("");
}
word = subStr;
continue;
}
//If there are no available options for the current word, return nothing
//since it is not a naturally ending word
if (set.containsOptions(word) == false)
{
return("");
}
//Get the next letter
var next = set.next(word);
//If the word is about to terminate
if (next == ' ')
{
//If the word is too short, retry
if (word.Length < minSize)
{
//If we're stuck in a loop with the original, return nothing
if (word == subStr)
{
return("");
}
word = subStr;
continue;
}
//If the result word already exists in the wordset's source, skip
if (set.containsSourceWord(word))
{
word = subStr;
continue;
}
break;
}
//Append the new letter to the word
word += next;
}
return(word.Trim());
}
/// <summary>
/// "Mutates" an existing word by selecting an existing (random length) substring
/// and generating a new word from the substring base.
/// </summary>
/// <param name="set"></param>
/// <param name="wordSrc"></param>
/// <param name="minSize"></param>
/// <param name="maxSize"></param>
/// <returns></returns>
public static string Mutate(WordSet set, string wordSrc, int minSize, int maxSize)
{
return(Mutate(set, wordSrc, minSize, maxSize, 1));
}