private async Task ValidateLetter()
{
Attempts++;
var wordArray = Word.ToCharArray();
if (wordArray.Contains(Letter))
{
foreach (Match m in Regex.Matches(Word, Letter.ToString()))
{
Letters[m.Index] = Letter;
}
if (!Letters.Any(c => c == '_'))
{
await Win();
}
}
else
{
IncorrectLetters.Add(Letter);
SetImage();
if (IncorrectLetters.Count == 6)
{
await Loose();
}
}
}
private void FetchGameState()
{
_lastGameState = new HangmanGameState()
{
CorrectAttempts = CorrectLetters.Count,
FailedAttempts = IncorrectLetters.Count,
CorrectLetters = CorrectLetters.Select(str => (String)str.Clone()).ToList(),
IncorrectLetters = IncorrectLetters.Select(str => (String)str.Clone()).ToList(),
Difficulty = Difficulty,
FoundLetters = DisplayWord.Replace(" ", String.Empty).Count(f => f != '_'),
TotalLetters = GivenWord.Length,
State = _lastState,
TimeElapsed = _stopwatch.Elapsed,
DisplayWord = DisplayWord
};
}
public void TryLetter(String letter)
{
if (String.IsNullOrEmpty(letter))
{
throw new HangmanException("TryLetter(string) expected a Letter of the English Alphabet. Got empty or null string");
}
if (letter.Length > 1)
{
throw new HangmanException("TryLetter(string) expected a Letter of the English Alphabet. Got " + letter);
}
if (letter.Any(x => !char.IsLetter(x)))
{
throw new HangmanException("TryLetter(string) expected a Letter of the English Alphabet. Got " + letter);
}
if (!IsGameStarted)
{
throw new HangmanGameNotStartedException();
}
_lastState = HangmanState.LetterTried;
var c = letter.ToUpper();
if (GivenWord.Contains(c))
{
if (!CorrectLetters.Contains(c))
{
CorrectLetters.Add(c);
FetchGameState();
OnAttempt?.Invoke(_lastGameState);
}
}
else
{
if (!IncorrectLetters.Contains(c))
{
IncorrectLetters.Add(c);
FetchGameState();
OnAttempt?.Invoke(_lastGameState);
}
}
CheckGameState();
}
public void StartGame(String word = null)
{
if (IsGameStarted)
{
throw new HangmanGameAlreadyStartedException();
}
if (_difficultyPending != null)
{
_difficulty = _difficultyPending;
_difficultyPending = null;
}
var client = new WebClient();
if (word != null)
{
GivenWord = word.ToUpper();
}
else
{
var wordLength = _random.Next(_difficulty.MinimumLetters, 20);
try
{
var data = client.DownloadString(WordProvider).ToUpper();
var strings = JsonConvert.DeserializeObject <String[]>(data);
GivenWord = strings[0];
}
catch (WebException)
{
throw new HangmanGameUnableToStartException("Couldn't fetch a random word from Online API");
}
}
_lastState = HangmanState.Started;
CorrectLetters.Clear();
IncorrectLetters.Clear();
_timer.Start();
_stopwatch.Reset();
_stopwatch.Start();
IsGameStarted = true;
FetchGameState();
OnStart?.Invoke(_lastGameState);
}