private const int InitialMaturityLoan = 1; // 20 years is more realistic.
private void InitLoans(double totalDebt)
{
_loanPortfolio = new LoanPortfolio();
var valueOfSingleLoan = totalDebt / InitialMaturityLoan;
for (var maturity = 1; maturity <= InitialMaturityLoan; maturity++)
{
var interestRate = Economy.GetInterestRate(maturity);
_loanPortfolio.AddNewLoan(valueOfSingleLoan, interestRate, maturity);
}
Debug.Assert(Math.Abs(_loanPortfolio.Debt - totalDebt) < 0.01);
}
public void EndOfYear()
{
var expensesHouses = RealEstatePortfolio.EndOfYear();
var earningsSales = SellHouses();
foreach (var newDevelopmentProjectType in NewDevelopmentProjectType.GetAll())
{
newDevelopmentProjectType.EndOfYear();
}
var expensesNewDevelopment = ExecuteNewDevelopmentProjects();
foreach (var renovationProjectProjectType in RenovationProjectType.GetAll())
{
renovationProjectProjectType.EndOfYear();
}
var expensesRenovation = ExecuteRenovations();
var expensesLoans = _loanPortfolio.EndOfYear();
// If we have spent money we need to attract a new loan.
var totalExpenses = expensesLoans + expensesHouses + AnnualCosts - _loanPortfolio.Cash - earningsSales + expensesNewDevelopment + expensesRenovation;
if (totalExpenses > 0)
{
var previousDebt = _loanPortfolio.Debt;
AttractLoan(totalExpenses);
_loanPortfolio.Cash = 0;
// Assert that a loan really has been attracted.
Debug.Assert(Math.Abs(previousDebt + totalExpenses - _loanPortfolio.Debt) < 0.01);
}
else
{
_loanPortfolio.Cash = -totalExpenses;
}
CumulativeInflation *= Economy.Get(Series.PriceInflation) + 1;
IsBankrupt |= SolvencyRatio < BankruptcyThreshold;
}
public Dictionary <OutputType, double[][]> Run()
{
Console.Write(@"Simulating scenario ");
for (var scenario = 0; scenario < NumberOfScenarios; scenario++)
{
Console.Write($@"{scenario + 1}");
Console.SetCursorPosition(20, 1);
Economy.Read(scenario);
var association = new HousingAssociation(0);
GatherData(association, scenario, 0);
for (var t = 0; t <= Horizon; t++)
{
Economy.CurrentYear = t;
association.EndOfYear();
GatherData(association, scenario, t + 1);
}
}
return(_results);
}