public void EstimatePI(int dartCount, int fileCount)
{
DateTime StartTime = DateTime.Now;
DartCount = dartCount;
ResultFileName = $"EstimatePIResult_{fileCount}.csv";
// will stop if error during setup
if (!string.IsNullOrWhiteSpace(Setup()))
{
return;
}
// everything ok in the setup, continue
EstimatedPIResult estimatedPIResult = DoEstimate();
DateTime EndTime = DateTime.Now;
FileInfo fi = new FileInfo($"{TempDirPath}{ResultFileName}");
TimeSpan timeSpan = new TimeSpan(EndTime.Ticks - StartTime.Ticks);
StreamWriter sw = fi.CreateText();
sw.WriteLine($"Count,InCircle,PI,Seconds");
sw.WriteLine($"{estimatedPIResult.Count},{estimatedPIResult.InCircle},{estimatedPIResult.EstimatedPI},{timeSpan.Seconds}");
sw.Close();
}
private EstimatedPIResult DoEstimate()
{
EstimatedPIResult estimatedPIResult = new EstimatedPIResult();
Random r = new Random();
int Count = 0;
int InCircle = 0;
for (int i = 0; i < DartCount; i++)
{
double x = r.NextDouble();
double y = r.NextDouble();
if (IsInCircle(x, y))
{
InCircle++;
}
Count++;
}
estimatedPIResult.Count = Count;
estimatedPIResult.InCircle = InCircle;
estimatedPIResult.EstimatedPI = 4.0D * (double)InCircle / (double)Count;
return(estimatedPIResult);
}