private bool IsDone(IRaceDefinition raceDefinition, IStrategieResult strategie)
{
var done = false;
switch (raceDefinition.RaceMode)
{
case RaceMode.Race:
if (strategie.NumberOfLaps == raceDefinition.NumberOfLaps)
{
done = true;
}
break;
case RaceMode.Endurance:
if (strategie.RaceTime >= raceDefinition.RaceDuration)
{
done = true;
}
break;
}
return(done);
}
private TimeSpan GetFuelFillingTime(IRaceDefinition raceDefinition, double currentFuelRate, int refuel)
{
// [s/%]
var fillingSpeed = raceDefinition.FuelFillingDuration.TotalSeconds / raceDefinition.FuelToFillInPercent;
return(TimeSpan.FromSeconds((refuel - currentFuelRate) * fillingSpeed));
}
private void RunLaps(IRaceDefinition raceDefinition, ItemsProvider <TiresType> tiresProvider, double fuelConsumptionPerLap, PitStrategie pitStrategie, IStrategieResult strategie, ItemsProvider <int> fuelProvider)
{
var tireDefinition = raceDefinition.TiresDefinitions.First(t => t.TiresType == strategie.StartTiresType);
var currentFuelRate = 100.0;
var currentTiresRate = 100.0;
var tireConsumptionPerLap = 100.0 / tireDefinition.OptimalNumberOfLaps;
var needRefuel = false;
var needChangeTires = false;
var nextRefuel = fuelProvider.GetNext();
do
{
strategie.NumberOfLaps++;
currentFuelRate -= fuelConsumptionPerLap;
currentTiresRate -= tireConsumptionPerLap;
if (currentFuelRate <= raceDefinition.FuelReservePercent)
{
needRefuel = true;
}
if (currentTiresRate <= 10)
{
needChangeTires = true;
}
if (needChangeTires || needRefuel)
{
switch (pitStrategie)
{
case PitStrategie.OnlyNeeded:
break;
case PitStrategie.FuelEachTime:
needRefuel = currentFuelRate < nextRefuel;
break;
case PitStrategie.TiresEachTime:
needChangeTires = true;
break;
case PitStrategie.FuelAndTiresEachTime:
needRefuel = currentFuelRate < nextRefuel;
needChangeTires = true;
break;
}
var pitStop = new PitStop
{
Refuel = needRefuel ? nextRefuel : 0,
ChangeTires = needChangeTires,
LapNumber = strategie.NumberOfLaps,
TiresType = tireDefinition.TiresType,
FuelState = currentFuelRate,
TiresState = currentTiresRate
};
strategie.PitStops.Add(pitStop);
if (needChangeTires)
{
strategie.RaceTime = strategie.RaceTime.Add(raceDefinition.TiresChangeDuration);
needChangeTires = false;
currentTiresRate = 100.0;
var nextTires = tiresProvider.GetNext();
tireDefinition = raceDefinition.TiresDefinitions.First(t => t.TiresType == nextTires);
tireConsumptionPerLap = 100.0 / tireDefinition.OptimalNumberOfLaps;
pitStop.TiresType = tireDefinition.TiresType;
}
if (needRefuel)
{
strategie.RaceTime = strategie.RaceTime.Add(GetFuelFillingTime(raceDefinition, currentFuelRate, nextRefuel));
needRefuel = false;
currentFuelRate = nextRefuel;
nextRefuel = fuelProvider.GetNext();
}
strategie.RaceTime = strategie.RaceTime.Add(raceDefinition.TimeLostForPitStop);
}
strategie.RaceTime = strategie.RaceTime.Add(tireDefinition.AverageLapTime);
strategie.TiresEndState = currentTiresRate;
strategie.FuelEndState = currentFuelRate;
} while (!IsDone(raceDefinition, strategie));
}
public IStrategieResult Resolve(IRaceDefinition raceDefinition)
{
var tireTypes = raceDefinition.TiresDefinitions.Select(t => t.TiresType).ToList();
var numberOfTiresType = tireTypes.Distinct().Count();
if (numberOfTiresType != raceDefinition.TiresDefinitions.Count)
{
throw new InvalidOperationException("TiresDefinions is invalid, TiresType must be distinct");
}
var strategieResults = new List <StrategieResult>();
var fuelConsumptionPerLap = 100 / raceDefinition.NumberOfLapsWithFullFuel;
var tiresProviders = GetProviders(5, raceDefinition.TiresDefinitions.Select(t => t.TiresType).OrderBy(t => t).ToList());
var fuelProviders = GetProviders(4, new[]
{
50,
60,
70,
80,
90,
100
});
foreach (PitStrategie pitStrategie in Enum.GetValues(typeof(PitStrategie)))
{
foreach (var tiresProvider in tiresProviders)
{
foreach (var refuelProvider in fuelProviders)
{
var startTiresType = tiresProvider.GetNext();
var strategie = new StrategieResult
{
StartTiresType = startTiresType,
PitStops = new List <IPitStop>(),
RaceTime = TimeSpan.Zero
};
strategieResults.Add(strategie);
RunLaps(raceDefinition, tiresProvider, fuelConsumptionPerLap, pitStrategie, strategie, refuelProvider);
}
}
}
StrategieResult result = null;
switch (raceDefinition.RaceMode)
{
case RaceMode.Race:
result = strategieResults.OrderBy(s => s.RaceTime).First();
break;
case RaceMode.Endurance:
result = strategieResults
.OrderByDescending(s => s.NumberOfLaps)
.ThenBy(s => s.FuelEndState)
.First();
break;
}
return(result);
}
