/// <summary>
/// Verifies that the provided answer string is correct and if so, if it qualifies for the bonus answer
/// if there is one.
/// </summary>
/// <param name="answer">Answer string from user</param>
/// <returns></returns>
public AnswerResponse VerifyAnswer(string answer)
{
var response = new AnswerResponse
{
AnswerStatus = AnswerStatus.Incorrect,
Points = Points,
BonusPoints = BonusPoints
};
bool AnswerContains(string item) => answer.Contains(item, StringComparison.InvariantCultureIgnoreCase);
try
{
if (BonusPoints.HasValue && BonusPoints.Value != 0)
{
response.BonusPoints = BonusPoints;
if (BonusAll ?? false)
{
if (BonusAnswers.All(AnswerContains))
{
response.AnswerStatus = AnswerStatus.BonusCorrect;
}
else if (BonusAnswers.Any(AnswerContains))
{
response.AnswerStatus = AnswerStatus.PartiallyCorrect;
}
}
else if (BonusAnswers.Any(AnswerContains))
{
response.AnswerStatus = AnswerStatus.BonusCorrect;
}
return(response);
}
if (AnswersRequired.HasValue)
{
if (Answers.All(AnswerContains))
{
response.AnswerStatus = AnswerStatus.NormalCorrect;
}
else if (Answers.Any(AnswerContains))
{
response.AnswerStatus = AnswerStatus.PartiallyCorrect;
}
}
else if (Answers.Count(AnswerContains) >= AnswersRequired)
{
response.AnswerStatus = AnswerStatus.NormalCorrect;
}
else if (Answers.Count(AnswerContains) > 0)
{
response.AnswerStatus = AnswerStatus.PartiallyCorrect;
}
}
catch (Exception e) // Handling any errors is the responsibility of the consumer
{
response.AnswerStatus = AnswerStatus.Error;
response.Exception = e;
}
return(response);
}
public override bool IsAnsweredCorrectly()
{
return(Answers.All(x => x.Selected == x.Correct));
}
public override bool Equals(QuizItem other)
{
return(Text == ((Question)other).Text &&
Answers.Count == ((Question)other).Answers.Count &&
Answers.All(x => ((Question)other).Answers.Any(y => y == x)));
}
public bool Validate()
{
return(Answers.All(ValidAnswers.Contains));
}
public void Calculate()
{
if (Answers.Count != QuestionsNumber)
{
return;
}
if (!Answers.All(x => x == 1 || x == 2 | x == 3))
{
return;
}
#region Template
var template =
@"001 - 2 1 0
002 - 0 1 2
003 - 0 1 0
004 - 2 1 0
005 - 0 1 2
006 - 0 1 2
007 - 2 1 0
008 - 2 1 0
009 - 2 1 0
010 - 2 1 0
011 - 0 1 2
012 - 0 1 2
013 - 0 1 2
014 - 2 1 0
015 - 2 1 0
016 - 2 1 0
017 - 2 1 0
018 - 0 1 2
019 - 2 1 0
020 - 0 0 2
021 - 2 1 0
022 - 0 1 2
023 - 2 1 0
024 - 0 1 2
025 - 0 1 2
026 - 2 1 0
027 - 0 1 2
028 - 0 1 2
029 - 2 1 0
030 - 2 1 0
031 - 2 1 0
032 - 0 1 2
033 - 2 1 0
034 - 0 1 2
035 - 0 1 2
036 - 0 1 2
037 - 0 1 0
038 - 0 1 2
039 - 2 1 0
040 - 0 1 2
041 - 2 1 0
042 - 0 1 2
043 - 0 1 2
044 - 0 1 2
045 - 2 1 0
046 - 2 1 0
047 - 0 1 2
048 - 0 1 2
049 - 2 1 0
050 - 2 1 0
051 - 0 1 2
052 - 2 1 0
053 - 2 1 0
054 - 0 0 2
055 - 2 1 0
056 - 2 1 0
057 - 2 1 0
058 - 0 1 2
059 - 2 1 0
060 - 2 1 0
061 - 0 1 2
062 - 2 1 0
063 - 2 1 0
064 - 2 1 0
065 - 0 1 2
066 - 2 1 0
067 - 0 1 2
068 - 2 1 0
069 - 0 1 2
070 - 2 1 0
071 - 2 0 0
072 - 0 1 2
073 - 0 1 2
074 - 2 1 0
075 - 2 1 0
076 - 2 1 0
077 - 0 1 2
078 - 2 1 0
079 - 2 1 0
080 - 0 1 2
081 - 0 1 2
082 - 0 1 2
083 - 0 1 2
084 - 0 1 2
085 - 0 1 2
086 - 0 1 2
087 - 0 1 2
088 - 0 0 2
089 - 0 1 2
090 - 2 1 0
091 - 0 1 2
092 - 0 1 2
093 - 0 1 2
094 - 0 1 2
095 - 2 1 0
096 - 0 1 2
097 - 0 1 2
098 - 2 1 0
099 - 2 1 0
100 - 0 1 2
101 - 0 1 2
102 - 2 1 0
103 - 0 1 2
104 - 2 0 0
105 - 0 1 0";
var arrays = template.Split(new[] { Environment.NewLine }, StringSplitOptions.RemoveEmptyEntries)
.Select(x => x.Split(new[] { "-" }, StringSplitOptions.RemoveEmptyEntries))
.Select(x => x[1].Split(new[] { " " }, StringSplitOptions.RemoveEmptyEntries)
.Select(int.Parse).ToList())
.ToList();
#endregion
var getResult = new Func <List <List <int> >, int, int, int>((key, number, answer) => key[number - 1][answer - 1]);
var sumResult = new Func <List <List <int> >, List <int>, List <int>, int>((key, numbers, answers) =>
{
return(numbers.Select(x => getResult(key, x, answers[x - 1])).Sum());
});
var md = new List <int> {
1, 18, 35, 52, 69, 86, 103
};
var a = new List <int> {
2, 19, 36, 53, 70, 87
};
var b = new List <int> {
3, 20, 37, 54, 71, 88, 105, 104
};
var c = new List <int> {
4, 21, 38, 55, 72, 89
};
var e = new List <int> {
5, 22, 39, 56, 73, 90
};
var f = new List <int> {
6, 23, 40, 57, 74, 91
};
var g = new List <int> {
7, 24, 41, 58, 75, 92
};
var h = new List <int> {
8, 25, 42, 59, 76, 93
};
var i = new List <int> {
9, 26, 43, 60, 77, 94
};
var l = new List <int> {
10, 27, 44, 61, 78, 95
};
var m = new List <int> {
11, 28, 45, 62, 79, 96
};
var n = new List <int> {
12, 29, 46, 63, 80, 97
};
var o = new List <int> {
13, 30, 47, 64, 81, 98
};
var q1 = new List <int> {
14, 31, 48, 65, 82, 99
};
var q2 = new List <int> {
15, 32, 49, 66, 83, 100
};
var q3 = new List <int> {
16, 33, 50, 67, 84, 101
};
var q4 = new List <int> {
17, 34, 51, 68, 85, 102
};
Md = sumResult(arrays, md, Answers);
A = sumResult(arrays, a, Answers);
B = sumResult(arrays, b, Answers);
C = sumResult(arrays, c, Answers);
E = sumResult(arrays, e, Answers);
F = sumResult(arrays, f, Answers);
G = sumResult(arrays, g, Answers);
H = sumResult(arrays, h, Answers);
I = sumResult(arrays, i, Answers);
L = sumResult(arrays, l, Answers);
M = sumResult(arrays, m, Answers);
N = sumResult(arrays, n, Answers);
O = sumResult(arrays, o, Answers);
Q1 = sumResult(arrays, q1, Answers);
Q2 = sumResult(arrays, q2, Answers);
Q3 = sumResult(arrays, q3, Answers);
Q4 = sumResult(arrays, q4, Answers);
}
/// <summary>
/// Determines if a SessionAnswer is correct.
/// </summary>
/// <returns><c>true</c>, if question correct answers matches with all session answers,
/// <c>false</c> otherwise.
/// </returns>
public bool IsCorrect()
{
return(Answers.Count() == Question.GetCorrectAnswers().Count() &&
Answers.All(answer => answer.IsCorrect));
}