private SignalRService(HubConnection client)
{
_client = client;
CurrentAnswer = _client
.Observe <Answer, DateTime>(nameof(CurrentAnswer))
.Log(this, nameof(CurrentAnswer))
.Publish();
CurrentAnswer
.Connect()
.DisposeWith(_disposable);
CurrentLeaderboard = _client
.Observe <IList <Player> >(nameof(CurrentLeaderboard))
.Log(this, nameof(CurrentLeaderboard))
.Publish();
CurrentLeaderboard
.Connect()
.DisposeWith(_disposable);
PlayerCountUpdated = _client
.Observe <int>(nameof(PlayerCountUpdated))
.Log(this, nameof(PlayerCountUpdated))
.Publish();
PlayerCountUpdated
.Connect().DisposeWith(_disposable);
}
/// <summary>
/// Gets a boolean indicating if the current answer is correct.
/// </summary>
private bool IsAnswerCorrect()
{
CurrentAnswer = CurrentAnswer.Trim();
if (CurrentQuestion.Question == SrsQuestionEnum.Meaning)
{
// Look for an exact meaning answer.
bool isExactAnswer = CurrentQuestionGroup.Reference.Meanings
.Split(MultiValueFieldHelper.ValueSeparator)
.Any(s => s.ToLower() == CurrentAnswer.ToLower());
// If there wasn't an exact meaning, use the string distance
// algorithm to approximate the answer.
if (!isExactAnswer)
{
// Compute all evaluation strings.
List <string> evaluations = new List <string>();
foreach (string meaning in CurrentQuestionGroup.Reference.Meanings.Split(MultiValueFieldHelper.ValueSeparator))
{
evaluations.Add(meaning);
string formattedMeaning = StringHelper.RemoveParenthesisExpressions(meaning);
if (formattedMeaning != meaning)
{
evaluations.Add(formattedMeaning);
}
}
// See if the answer at least approximately matches one of the evaluation strings.
string answer = evaluations.Where(s => StringDistanceHelper.DoDistributedLevenshteinDistance(
CurrentAnswer.ToLower(), s.ToLower(), MeaningDistanceLenience))
.FirstOrDefault();
if (answer != null)
{
// An approximate answer was found.
CurrentAnswer = answer;
return(true);
}
// No approximate answer found either.
return(false);
}
// Exact answer match.
return(true);
}
else if (CurrentQuestion.Question == SrsQuestionEnum.Reading)
{
// Look for an exact match for any reading.
return(CurrentQuestionGroup.Reference.Readings
.Split(MultiValueFieldHelper.ValueSeparator)
.Any(s => s.ToLower() == CurrentAnswer.ToLower()));
}
// Should never happen.
return(false);
}
public FrameUpdate Layer3_modify()
{
BinaryOperator binaryOperator = Setting.Operators.GetBinary(Content);
if (NumberField != null)
{
throw new Exception("ModifyBinary時Number不能有值");
}
ExpressionTreeManager.Modify(binaryOperator);
return(new FrameUpdate(CurrentAnswer.ToString(), new ExpUpdate(removeLength: 1, updateString: Content.ToString())));
}
public FrameUpdate Layer3_add()
{
BinaryOperator binaryOperator = Setting.Operators.GetBinary(Content);
//若沒有輸入過值，則視為輸入了0
ExpressionTreeManager.Add((NumberField == null) ? 0 : NumberField.Number.Value);
//數字歸零
NumberField = null;
//算出一個暫時的結果並存下
CurrentAnswer = ExpressionTreeManager.TryGetTmpResult();
ExpressionTreeManager.Add(binaryOperator);
return(new FrameUpdate(CurrentAnswer.ToString(), new ExpUpdate(removeLength: 0, updateString: Content.ToString())));
}
public FrameUpdate Layer3_equalCombo()
{
string updateString = CurrentAnswer.ToString();
//更新計算答案
CurrentAnswer = ExpressionTreeManager.GetLastTreeReplaceLeftResult(CurrentAnswer);
var op = ExpressionTreeManager.GetLastTreeTopOperator();
updateString += op;
var rightNumber = ExpressionTreeManager.GetLastTreeRightResult();
updateString += rightNumber.ToString();
updateString += "=";
return(new FrameUpdate(CurrentAnswer.ToString(), new ExpUpdate(removeLength: ExpUpdate.REMOVE_ALL, updateString: updateString)));
}
public FrameUpdate Layer3_binaryAndEqualCombo()
{
//CurrentAnswer已經被Binary算好了
ExpressionTreeManager.Add(CurrentAnswer);
//result處理
var result = ExpressionTreeManager.TryGetResult();
var ans = result.Answer;
//做更新字串
var updateString = CurrentAnswer.ToString();
for (int i = 0; i < result.ExtraRightBracketCount; i++)
{
updateString += ")";
}
//送出結果
updateString += "=";
return(new FrameUpdate(ans.ToString(), new ExpUpdate(removeLength: 0, updateString: updateString)));
}
