private string GetNextProblem(ProblemType type)
{
switch (type)
{
case ProblemType.Addition:
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.Subtraction:
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.AddSubtract:
if (rand.Next(4) >= 2)
{
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
case ProblemType.Multiplication:
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.Division:
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.MultiplyDivide:
if (rand.Next(4) >= 2)
{
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
case ProblemType.All:
int randInt = rand.Next(8);
if (randInt >= 6)
{
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else if (randInt >= 4)
{
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else if (randInt >= 2)
{
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
}
return("Problem Number " + _problems.Count + ": " + Environment.NewLine +
Environment.NewLine + _currentMathProblem);
}
private string GetNextProblem(ProblemType type)
{
switch (type)
{
case ProblemType.Addition:
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.Subtraction:
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.AddSubtract:
if (rand.Next(4) >= 2)
{
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
case ProblemType.Multiplication:
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.Division:
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
break;
case ProblemType.MultiplyDivide:
if (rand.Next(4) >= 2)
{
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
case ProblemType.All:
int randInt = rand.Next(8);
if (randInt >= 6)
{
_currentMathProblem = new MultiplicationProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else if (randInt >= 4)
{
_currentMathProblem = new DivisionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else if (randInt >= 2)
{
_currentMathProblem = new AdditionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
else
{
_currentMathProblem = new SubtractionProblem(GetDifficultyLevel());
_problems.Add(_currentMathProblem);
}
break;
}
return "Problem Number " + _problems.Count + ": " + Environment.NewLine +
Environment.NewLine + _currentMathProblem;
}