public static Quiz GetQuiz()
{
Quiz q = new Quiz();
WordElement[] waitList;
bool isWord = isAdapt ? AdaptQuiz(q, out waitList) : NormalQuiz(q, out waitList);
//insert answers
var anss = new List <Tuple <string, bool> >();
int r = rand.Next(waitList.Length);
anss.Add(new Tuple <string, bool>(waitList[r].GetStr(), true));
for (int a = 1; a < 5; a++)
{
WordElement ele;
do
{
r = rand.Next((int)((isWord ? DictService.MeansCount : DictService.WordsCount) * 1.4));
ele = (isWord ? DictService.MeanAt(r) as WordElement : DictService.WordAt(r) as WordElement);
ele = ele ?? waitList.ElementAt(r % waitList.Count());
}while (anss.Exists(x => ele.GetStr() == x.Item1));
bool isRight = waitList.Any(x => x.GetId() == ele.GetId());
anss.Add(new Tuple <string, bool>(ele.GetStr(), isRight));
}
q.choices = anss.Shuffle(rand).ToArray();
return(q);
}
private static bool NormalQuiz(Quiz q, out WordElement[] waitList)
{
int r = lastRand, max = 2 * Math.Max(DictService.WordsCount, DictService.MeansCount);
float ratio = DictService.WordsCount * 1.0f / DictService.MeansCount;
while (r == lastRand)
{
r = rand.Next(max);
}
lastRand = r;
bool isWord = (r % 2 == 1);
r /= 2;
//get basic data
if (isWord)
{
var word = DictService.WordAt(ratio < 1.0f ? (int)(r * ratio) : r);
q.quest = word.Letters;
waitList = DictService.GetMeansByWId(word.Id);
}
else
{
var mean = DictService.MeanAt(ratio > 1.0f ? (int)(r / ratio) : r);
q.quest = mean.Meaning;
waitList = DictService.GetWordsByMId(mean.Id);
}
return(isWord);
}