private decimal Solve()
{
if (_result == null)
{
TupleOperation lastOperation = new TupleOperation(OperationType.None);
decimal runningTotal = 0;
foreach (Tuple<decimal, TupleOperation> t in Equation)
{
if (lastOperation.Operand == OperationType.None)
{
runningTotal = (decimal)t.Item1;
}
else
{
runningTotal = lastOperation.Calculate((decimal)runningTotal, (decimal)t.Item1);
}
lastOperation = t.Item2;
}
_result = runningTotal;
}
return (decimal)_result;
}
private List<Tuple<decimal, TupleOperation>> GenerateRandomEquation()
{
List<Tuple<decimal, TupleOperation>> result = new List<Tuple<decimal, TupleOperation>>();
int counter = 1;
decimal term = 0;
int termCount = TermPool.Count;
int opCount = OperatorPool.Length;
TupleOperation operation = new TupleOperation();
OperationType lastOperand = OperationType.None;
while (counter <= NumberOfOperations)
{
do
{
term = Convert.ToDecimal(TermPool[EquationArgs.Rand.Next(0, termCount)]);
}
while (lastOperand == OperationType.Divide && term == 0);
if (counter == NumberOfOperations)
{
operation = new TupleOperation(OperationType.Equal);
}
else
{
operation = new TupleOperation(OperatorPool.ElementAt(EquationArgs.Rand.Next(0, opCount)).ToString());
}
result.Add(new Tuple<decimal, TupleOperation>(term, operation));
lastOperand = operation.Operand;
counter++;
}
return result;
}