private static IEnumerable <SimulationResult> RunSingleSimulation()
{
// initialize the population
foreach (var person in _population)
{
person.DayInfected = -1;
person.DayDied = -1;
}
for (var day = 0; day < _arguments.Days; day++)
{
// infect one person to start
if (day == 0)
{
_population[_random.Next(_arguments.Population)].DayInfected = 0;
}
// select people contacted this day and see if they get infected
foreach (var person in _population.Where(p => p.IsContagious(day) && p.IsAlive))
{
foreach (var contact in GetPeopleContacted(person).Where(p => !p.IsInfected))
{
if (_random.NextDouble() <= _arguments.Transmission)
{
contact.DayInfected = day;
}
}
}
// remove infected people who die from the population
// we assume if you are no longer contagious then you survived
foreach (var infected in _population.Where(p => p.IsContagious(day) && p.IsAlive))
{
var mortalityToDate = _arguments.Mortality / _arguments.Contagious;
if (_random.NextDouble() <= mortalityToDate)
{
infected.DayDied = day;
}
}
var retVal = new SimulationResult()
{
Contagious = _population.Count(p => p.IsContagious(day)),
Infected = _population.Count(p => p.IsInfected),
Died = _population.Count(p => !p.IsAlive),
};
yield return(retVal);
}
}
private static void OutputSimulationResult(int simNum, SimulationResult lastDay)
{
Console.SetCursorPosition(0, 0);
var simDoc = new Alba.CsConsoleFormat.Document(
new Grid()
{
Color = ConsoleColor.Gray,
Columns = { GridLength.Auto, GridLength.Auto, GridLength.Auto, GridLength.Auto },
Children =
{
new Cell("Run #")
{
Stroke = _hdrThickness, Align = Align.Center
},
new Cell("Infected")
{
Stroke = _hdrThickness, Align = Align.Center
},
new Cell("Contagious")
{
Stroke = _hdrThickness, Align = Align.Center
},
new Cell("Died")
{
Stroke = _hdrThickness, Align = Align.Center
},
new Cell(simNum + 1)
{
Align = Align.Center, Color = ConsoleColor.DarkRed
},
new Cell($"{lastDay.Infected / _arguments.Simulations:n0}")
{
Align = Align.Center, Color = ConsoleColor.Yellow
},
new Cell($"{lastDay.Contagious / _arguments.Simulations:n0}")
{
Align = Align.Center, Color = ConsoleColor.DarkCyan
},
new Cell($"{lastDay.Died / _arguments.Simulations}")
{
Align = Align.Center, Color = ConsoleColor.Red
}
}
});
ConsoleRenderer.RenderDocument(simDoc);
}
