void Start()
{
var tableIndices = Enumerable.Range(0, Config.NDiningTables).Where(i => DiningTables[i].Count == 0).ToList();
if (tableIndices.Count > 0 && Waiting.Count > 0)
{
var tblIdx = tableIndices.First(); /// get the table
List <int> indices = null;
var sizes = Waiting.Select(g => g.Count).ToList();
switch (Config.BatchingRule)
{
case Statics.BatchingRules.None:
indices = new List <int> {
0
};
break;
case Statics.BatchingRules.Table8:
indices = Batch(sizes, 8, 8);
break;
case Statics.BatchingRules.Table4:
indices = Batch(sizes, 8, 8);
if (indices == null)
{
indices = Batch(sizes, 4, 4);
}
break;
case Statics.BatchingRules.Table4to8:
indices = Batch(sizes, 4, 8);
break;
}
/// Start dining
if (indices != null)
{
/// assign from bar seat to dining table
DiningTables[tblIdx] = indices.SelectMany(i => Waiting[i]).ToList();
HourCounterDinnersServing.ObserveChange(DiningTables[tblIdx].Count, ClockTime);
HourCounterTablesServing.ObserveChange(1, ClockTime);
foreach (var c in DiningTables[tblIdx])
{
c.DiningTime = ClockTime;
c.TableIndex = tblIdx;
if (c.BarSeatIndex > -1)
{
BarSeats[c.BarSeatIndex] = null;
HourCounterCustomersInBar.ObserveChange(-1, ClockTime);
}
// count drinks
var waitingHours = (c.DiningTime - c.ArrivalTime).TotalHours;
if (waitingHours > 0)
{
var nDrinks = MathNet.Numerics.Distributions.Poisson.Sample(DefaultRS, Config.ExpectedNDrinksPerHour * waitingHours);
if (c.ArrivalTime.Hour < Config.PeakStartingHour && Config.AdsOption == Statics.AdsOptions.HappyHour)
{
TotalNDrinksServedInHappyHours += nDrinks;
}
TotalNDrinksServed += nDrinks;
}
}
Waiting = Enumerable.Range(0, Waiting.Count).Where(i => !indices.Contains(i)).Select(i => Waiting[i]).ToList();
/// dining time
var mean = Config.ExpectedDiningMinutesduringPeak;
if (ClockTime.Hour < Config.PeakStartingHour)
{
mean = Config.ExpectedDiningMinutesbeforePeak;
}
if (ClockTime.Hour >= Config.PeakEndingHour)
{
mean = Config.ExpectedDiningMinutesafterPeak;
}
Schedule(() => Depart(tblIdx), TimeSpan.FromMinutes(Exponential.Sample(DefaultRS, mean)));
}
}
/// Reject non-seated customers, if capacity limit is exceeded
if (Waiting.Sum(g => g.Count) > Config.NBarSeats)
{
Reject(Waiting.Last());
Waiting.RemoveAt(Waiting.Count - 1);
}
/// Seat newly arrived customers
int barSeatIdx = 0;
foreach (var c in Waiting.SelectMany(g => g).Where(c => c.BarSeatIndex < 0).ToList())
{
while (BarSeats[barSeatIdx] != null)
{
barSeatIdx++;
}
c.BarSeatIndex = barSeatIdx;
BarSeats[barSeatIdx] = c;
HourCounterCustomersInBar.ObserveChange(1, ClockTime);
}
Result.Update(this, ClockTime);
}
