public void NewGame(IGameDefinition definition, string code = null)
{
_definition = definition;
_remainingGuesses = _definition.AllowedGuesses;
// Allow the caller to specify the code if they wish
_code = string.Empty;
if (!string.IsNullOrEmpty(code))
{
if (!_definition.ValidateInputFormat(code, out string message))
{
throw new Exception($"Specified code passed is not consistent with game definition:{message}");
}
_code = code;
}
else
{
// Generate a random code
for (var digit = 0; digit < _definition.GuessLength; digit++)
{
Random random = new Random();
_code += random.Next(_definition.DigitMinVal, _definition.DigitMaxVal).ToString();
}
}
}
public GuessResult EvaluateGuess(string guess)
{
// Ensure we have valid input
if (!_definition.ValidateInputFormat(guess, out string result))
{
return(new GuessResult {
Result = ResultCodes.InvalidInput, Message = result
});
}
// Ok they entered valid input, now decrement remaining guesses and check their guess vs code
_remainingGuesses--;
var responseCode = new char[_definition.GuessLength];
var anyIncorrect = false;
// Kinda brute-force
for (var digit = 0; digit < _definition.GuessLength; digit++)
{
responseCode[digit] = ' ';
if (_code.Contains(guess[digit]))
{
responseCode[digit] = '-';
}
if (_code[digit] == guess[digit])
{
responseCode[digit] = '+';
}
if (responseCode[digit] == ' ' || responseCode[digit] == '-')
{
anyIncorrect = true;
}
}
var correctGuess = !anyIncorrect;
string responseString = new string(responseCode);
// Evaluate results
if (correctGuess)
{
var tries = _definition.AllowedGuesses - _remainingGuesses;
NewGame(_definition);
return(new GuessResult
{
Result = ResultCodes.CorrectGuess,
Message = $"[{responseString}] - Correct guess in {tries} tries! New Game!"
});
}
else if (_remainingGuesses == 0)
{
NewGame(_definition);
return(new GuessResult
{
Result = ResultCodes.NoMoreTries,
Message = $"[{responseString}] - Sorry, no more tries. The code was:{_code}, New Game!"
});
}
return(new GuessResult
{
Result = ResultCodes.InCorrectTryAgain,
Message = $"[{responseString}] - {_remainingGuesses} more tries."
});
}
