public static List <int[]> DBCountItemGroupByModule(Level lv)
{
IUx[] IUs_by_Lv = MultiChoiceItem.GetIUs(lv);
int[] n_difficultItems = new int[IUs_by_Lv.Length];
int[] n_allItems = new int[IUs_by_Lv.Length];
int j = -1;
foreach (IUx i in IUs_by_Lv)
{
n_allItems[++j] = DBConnect.Count("sqz_question", "id",
"moid=" + (int)i + " AND del=0");
if (n_allItems[j] < 0)
{
n_allItems[++j] = 0;
}
n_difficultItems[j] = DBConnect.Count("sqz_question", "id",
"moid=" + (int)i + " AND diff=1 AND del=0");
if (n_difficultItems[j] < 0)
{
n_difficultItems[j] = 0;
}
}
List <int[]> n = new List <int[]>();
n.Add(n_allItems);
n.Add(n_difficultItems);
return(n);
}
public MultiChoiceItem RandomizeDeepCopy(Random rand)
{
MultiChoiceItem q = new MultiChoiceItem();
q.ID_in_DB = ID_in_DB;
q.Stem = Stem;
q.mIU = mIU;
q.IsDifficult = IsDifficult;
//randomize
q.Options = new NonnullRichText[N_OPTIONS];
q.Keys = new bool[N_OPTIONS];
List <int> l = new List <int>();
for (int i = 0; i < N_OPTIONS; ++i)
{
l.Add(i);
}
int n = N_OPTIONS;
while (0 < n)
{
int lidx = rand.Next() % n;
int idx = l[lidx];
l.RemoveAt(lidx);
--n;
q.Options[n] = Options[idx];
q.Keys[n] = Keys[idx];
q.PermutedOptions[n] = idx;
}
return(q);
}
void ParseQueue(Queue <NonnullRichTextBuilder> richTexts)
{
Questions.Clear();
int stride = 1 + MultiChoiceItem.N_OPTIONS;
while (richTexts.Count > 0)
{
Questions.Add(MultiChoiceItem.NewWith(richTexts));
}
}
public static MultiChoiceItemView NewWith(MultiChoiceItem model, int idx, double idxHeight, double questionWidth, StackPanel UI_Container)
{
MultiChoiceItemView question = new MultiChoiceItemView();
question.Model = model;
question.Idx = idx;
question.IdxHeight = idxHeight;
question.QuestionWidth = questionWidth;
question.UI_Container = UI_Container;
return(question);
}
public List <QuestSheet> GenQPack3(int n, int[] vn, int[] vndiff)
{
//string emsg;
Random rand = new Random();
List <QuestSheet> l = new List <QuestSheet>();
QuestSheet qs0 = new QuestSheet();
//qs0.bAlt = bAlt;
int j = -1;
foreach (IUx i in MultiChoiceItem.GetIUs(Lv))
{
++j;
if (qs0.DBSelect(rand, i, vn[j] - vndiff[j], Difficulty.Easy))
{
//WPopup.s.ShowDialog(emsg);
return(new List <QuestSheet>());
}
if (qs0.DBSelect(rand, i, vndiff[j], Difficulty.Difficult))
{
//WPopup.s.ShowDialog(emsg);
return(new List <QuestSheet>());
}
}
while (0 < n)
{
--n;
QuestSheet qs = qs0.RandomizeDeepCopy(rand);
qs.Lv = Lv;
if (!qs.UpdateCurQSId())//todo: better error handle
{
Sheets.Add(qs.uId, qs);
l.Add(qs);
}
}
if (DBIns(mDt, l) == null)
{
return(l);
}
return(new List <QuestSheet>());
}
public List <int[]> CountItemGroupByModule()
{
IUx[] IUs_by_Lv = MultiChoiceItem.GetIUs(Lv);
int[] n_difficultItems = new int[IUs_by_Lv.Length];
int[] n_allItems = new int[IUs_by_Lv.Length];
foreach (MultiChoiceItem i in Questions)
{
int module;
switch (i.mIU)
{
case IUx._7:
module = 0;
break;
case IUx._8:
module = 1;
break;
case IUx._9:
module = 2;
break;
default:
module = (int)i.mIU;
break;
}
++n_allItems[module];
if (i.IsDifficult)
{
++n_difficultItems[module];
}
}
List <int[]> n = new List <int[]>();
n.Add(n_allItems);
n.Add(n_difficultItems);
return(n);
}
public MultiChoiceItem DeepCopy()
{
MultiChoiceItem q = new MultiChoiceItem();
q.ID_in_DB = ID_in_DB;
q.Stem = Stem;
q.mIU = mIU;
q.Options = new NonnullRichText[N_OPTIONS];
for (int i = 0; i < N_OPTIONS; ++i)
{
q.Options[i] = Options[i];
}
q.Keys = new bool[N_OPTIONS];
for (int i = 0; i < N_OPTIONS; ++i)
{
q.Keys[i] = Keys[i];
}
q.PermutedOptions = new int[N_OPTIONS];
for (int i = 0; i < N_OPTIONS; ++i)
{
q.PermutedOptions[i] = PermutedOptions[i];
}
return(q);
}
public List <QuestSheet> Genegrate2(int n, int[] vn, int[] vndiff)
{
List <QuestSheet> l = new List <QuestSheet>();
int i;
for (i = 0; i < n; ++i)
{
l.Add(new QuestSheet());
}
//foreach (QuestSheet qs in l)
// qs.bAlt = bAlt;
i = 0;
Random rand = new Random();
foreach (IUx iu in MultiChoiceItem.GetIUs(Lv))
{
//
QuestSheet qs0 = new QuestSheet();
//qs0.bAlt = bAlt;
qs0.DBSelect(iu, Difficulty.Easy);
//
foreach (QuestSheet qs in l)
{
List <MultiChoiceItem> vq = qs0.ShallowCopy();
int ni = vn[i] - vndiff[i];
while (0 < ni)
{
int idx = rand.Next() % ni;
qs.Add(vq.ElementAt(idx).DeepCopy());
vq.RemoveAt(idx);
--ni;
}
}
//
qs0 = new QuestSheet();
//qs0.bAlt = bAlt;
qs0.DBSelect(iu, Difficulty.Difficult);
//
foreach (QuestSheet qs in l)
{
List <MultiChoiceItem> vq = qs0.ShallowCopy();
int ni = vndiff[i];
while (0 < ni)
{
int idx = rand.Next() % ni;
qs.Add(vq.ElementAt(idx).DeepCopy());
vq.RemoveAt(idx);
--ni;
}
}
//
++i;
}
List <int> eidx = new List <int>();
i = -1;
foreach (QuestSheet qs in l)
{
qs.Lv = Lv;
qs.Randomize(rand);
if (!qs.UpdateCurQSId())//todo: better error handle
{
Sheets.Add(qs.uId, qs);
}
else
{
eidx.Add(++i);
}
}
foreach (int idx in eidx)
{
l.RemoveAt(idx);
}
if (DBIns(mDt, l) == null)
{
return(l);
}
return(new List <QuestSheet>());
}
public void Add(MultiChoiceItem q)
{
Questions.Add(q);
}
//static int ReadNOptions()
//{
// //if (System.IO.File.Exists(System.IO.Directory.GetCurrentDirectory() + "\\3.txt"))
// // return 3;
// return 4;
//}
public static MultiChoiceItem NewWith(Queue <NonnullRichTextBuilder> richTexts)
{
MultiChoiceItem question = new MultiChoiceItem();
MultiChoiceData questTexts = new MultiChoiceData(richTexts, N_OPTIONS);
string stem = questTexts.Stem.FirstStringOrDefault();
if (stem[0] == '*')
{
question.IsDifficult = true;
questTexts.Stem.Trunc1AtLeft();
}
else if (1 < stem.Length && stem[0] == '\\' &&
(stem[1] == '*' || stem[1] == '\\'))
{
question.IsDifficult = false;
questTexts.Stem.Trunc1AtLeft();
}
else
{
question.IsDifficult = false;
}
question.Stem = new NonnullRichText(questTexts.Stem);
question.Options = new NonnullRichText[N_OPTIONS];
question.Keys = new bool[N_OPTIONS];
question.PermutedOptions = new int[N_OPTIONS];
for (int i = 0; i < N_OPTIONS; ++i)
{
string isKey = questTexts.Options[i].FirstStringOrDefault();
if (isKey == null)
{
question.Keys[i] = false;
}
else if (isKey[0] == '\\')
{
if (isKey.Length == 1)
{
if (questTexts.Options[i].Runs.Count == 1)
{
question.Keys[i] = false;
}
else
{
question.Keys[i] = true;
questTexts.Options[i].Runs.RemoveAt(0);
}
}
else
{
if (isKey[1] != '\\')
{
question.Keys[i] = true;
}
else
{
question.Keys[i] = false;
}
questTexts.Options[i].Trunc1AtLeft();
}
}
else
{
question.Keys[i] = false;
}
question.Options[i] = new NonnullRichText(questTexts.Options[i]);
question.PermutedOptions[i] = i;
}
bool noAnswer = true;
for (int i = 0; i < N_OPTIONS; ++i)
{
if (question.Keys[i])
{
noAnswer = false;
}
}
if (noAnswer)
{
throw new ArgumentNullException();
}
return(question);
}
