public IActionResult Exam(int paperId)
{
ExamPaperInfo examPaper = _examPaperApp.Load(paperId);
RandomUtil.CanRepeat = true;
RandomUtil.RandomCount = (uint)examPaper.QuestionRank;
examPaper.Questions = RandomUtil.Draw(examPaper.Questions.ToList());
return(View(examPaper));
}
public void TestDraw()
{
Dictionary<float, int> dict = new Dictionary<float, int>(){ { 0.2f,1 }, { 0.4f,1 }, { 0.7f,3 }, };
for (int i = 0; i < 100; i++) {
float rand = RandomUtil.Draw(dict);
System.Console.Out.WriteLine(rand.ToString());
Assert.IsTrue(rand == 0.2f || rand == 0.4f || rand == 0.7f);
}
}
/// <summary>
/// 各ステージでのステップ情報を与えられた条件からランダム生成します。
/// </summary>
/// <returns>The step infos.</returns>
/// <param name="size">Size.</param>
/// <param name="panelNum">Panel number.</param>
/// <param name="minFlush">Minimum flush.</param>
/// <param name="maxFlush">Max flush.</param>
/// <param name="weightedIntervals">Weighted intervals.</param>
protected List <StepInfo> CreateStepInfos(int size, int panelNum, float minFlush, float maxFlush, Dictionary <float, int> weightedIntervals)
{
List <StepInfo> stepInfos = new List <StepInfo>();
float startTime = 0.1f;
for (int i = 0; i < size; i++)
{
float flushTime = RandomUtil.RandomFloat(minFlush, maxFlush);
Color color = RandomUtil.RandomColor();
while (color.grayscale < 0.5f)
{
// 黒っぽい色だと取り直し
color = RandomUtil.RandomColor();
}
stepInfos.Add(new StepInfo(RandomUtil.DrawNewInt(0, panelNum - 1), color, startTime, flushTime));
startTime += (flushTime + RandomUtil.Draw(weightedIntervals));
}
return(stepInfos);
}
/// <summary>
/// ステージ情報を生成します。
/// </summary>
/// <returns>The stage info.</returns>
private StageInfo createStageInfo()
{
int panelSideNum;
int stepNum;
float limitTime;
if (difficultLv == 9)
{
// Extraモード
panelSideNum = 7;
stepNum = RandomUtil.RandomInt(8, 9);
limitTime = RandomUtil.RandomFloat(12, 15);
bool randomReverse = (RandomUtil.RandomInt(0, 4) == 0);
int randomSkipN = RandomUtil.Draw(new Dictionary <int, int>()
{
{ 0, 4 }, { 1, 1 },
});
return(new StageInfo(0, currentStageNo + 1, panelSideNum, panelSideNum, limitTime, randomReverse, randomSkipN, CreateStepInfos(stepNum, panelSideNum * panelSideNum, 0.2f, 0.2f, new Dictionary <float, int>()
{
{ 0.2f, 1 }, { 0.3f, 1 }
})));
}
if (currentStageNo < 10)
{
panelSideNum = 2 + difficultLv;
stepNum = RandomUtil.RandomInt(2, 3) + difficultLv;
limitTime = stepNum + 2f;
}
else if (currentStageNo < 20)
{
panelSideNum = 3 + difficultLv;
stepNum = RandomUtil.RandomInt(2, 3) + difficultLv;
limitTime = stepNum + 2f;
}
else if (currentStageNo < 30)
{
panelSideNum = 3 + difficultLv;
stepNum = RandomUtil.RandomInt(3, 4) + difficultLv;
limitTime = stepNum + 1f;
}
else if (currentStageNo < 40)
{
panelSideNum = 3 + difficultLv;
stepNum = RandomUtil.RandomInt(4, 5) + difficultLv;
limitTime = stepNum + 1f;
}
else if (currentStageNo < 50)
{
panelSideNum = 4 + difficultLv;
stepNum = RandomUtil.RandomInt(4, 5) + difficultLv;
limitTime = stepNum;
}
else if (currentStageNo < 100)
{
panelSideNum = 4 + difficultLv;
stepNum = RandomUtil.RandomInt(6, 7) + difficultLv;
limitTime = stepNum - 1f;
}
else
{
panelSideNum = 4 + difficultLv;
stepNum = RandomUtil.RandomInt(8, 10) + difficultLv;
limitTime = stepNum - 1f;
}
int panelNum = panelSideNum * panelSideNum;
return(new StageInfo(0, currentStageNo + 1, panelSideNum, panelSideNum, limitTime, reverse, skipN, CreateStepInfos(stepNum, panelNum, 0.1f, 0.2f, new Dictionary <float, int>()
{
{ 0.2f, 2 }, { 0.3f, 1 }, { 0.4f, 1 }, { 0.5f, 1 },
})));
}