public static RacerStatus Decode(byte[] bytes)
{
MemoryStream mstream = new MemoryStream(bytes);
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(RacerStatus));
RacerStatus result = (RacerStatus)serializer.ReadObject(mstream);
return(result);
}
public void UpdateStatus(RacerStatus status)
{
Sensor sensor = Sensors[status.SensorId];
Racer racer = Racers[status.RacerBibNumber];
DateTime timestamp = new DateTime(status.Timestamp);
racer.UpdateLocation(sensor.Location, timestamp);
}
public void Setup()
{
// Note: without changing functionality we will refactor this method to improve cohesion
// Setup defaults
if (NumberOfSensors <= 0)
NumberOfSensors = 20;
if (LengthOfRace <= 0)
LengthOfRace = 100;
// Setup sensors
sensors = new List<Sensor>();
for (int i = 0; i < NumberOfSensors; i++)
{
double mileMarker = (i+1) * Convert.ToDouble(LengthOfRace) / Convert.ToDouble(NumberOfSensors);
Sensor sensor = new Sensor() { Id = i, MileMarker = mileMarker };
sensors.Add(sensor);
}
// Create race groups
groups = new List<RaceGroup>()
{
new RaceGroup() { Id=1, Label="Mens Cat 1-2", MinBibNumber=1, MaxBibNumber=99, StartTime=0, AverageSpeed=25.0, MinNumberOfRacers = 20, MaxNumberOfRacers=50 },
new RaceGroup() { Id=2, Label="Womens Cat 1-3", MinBibNumber=100, MaxBibNumber=199, StartTime=5*60*1000, AverageSpeed=25.0, MinNumberOfRacers = 20, MaxNumberOfRacers=50 },
new RaceGroup() { Id=3, Label="Womens Cat 4", MinBibNumber=200, MaxBibNumber=299, StartTime=10*60*1000, AverageSpeed=25.0, MinNumberOfRacers = 20, MaxNumberOfRacers=50 },
new RaceGroup() { Id=4, Label="Mens Cat 3", MinBibNumber=300, MaxBibNumber=399, StartTime=15*60*1000, AverageSpeed=24.0, MinNumberOfRacers = 20, MaxNumberOfRacers=50 },
new RaceGroup() { Id=5, Label="Mens Cat 4", MinBibNumber=400, MaxBibNumber=499, StartTime=20*60*1000, AverageSpeed=22.0, MinNumberOfRacers = 20, MaxNumberOfRacers=50 },
new RaceGroup() { Id=6, Label="Mens Cat 5A", MinBibNumber=5000, MaxBibNumber=5099, StartTime=25*60*1000, AverageSpeed=20.0, MinNumberOfRacers = 40, MaxNumberOfRacers=60 },
new RaceGroup() { Id=7, Label="Mens Cat 5B", MinBibNumber=5100, MaxBibNumber=5199, StartTime=30*60*1000, AverageSpeed=20.0, MinNumberOfRacers = 40, MaxNumberOfRacers=60 },
new RaceGroup() { Id=8, Label="Mens Cat 5C", MinBibNumber=5200, MaxBibNumber=5299, StartTime=35*60*1000, AverageSpeed=20.0, MinNumberOfRacers = 40, MaxNumberOfRacers=60 },
};
// Setup race groups
foreach (RaceGroup group in groups)
group.Setup();
// Setup a 1 cheater in each group
for (int raceGroupA = 0; raceGroupA < groups.Count - 1; raceGroupA++)
{
int raceGroupB = raceGroupA + 1;
int cheaterIndex1 = RandomChooser.ChooseInt(0, groups[raceGroupA].Count);
Racer cheater1 = groups[raceGroupA][cheaterIndex1];
int cheaterIndex2 = RandomChooser.ChooseInt(0, groups[raceGroupB].Count);
Racer cheater2 = groups[raceGroupB][cheaterIndex2];
cheater1.WillTryToCheatWith = cheater2;
cheater2.WillTryToCheatWith = cheater1;
}
// Compute race times
messagesToSend = new List<RacerStatus>();
double previousMilageMarker = 0;
for (int sensorIndex = 0; sensorIndex < sensors.Count; sensorIndex++)
{
Sensor sensor = sensors[sensorIndex];
double deltaMilage = sensor.MileMarker - previousMilageMarker;
foreach (RaceGroup group in groups)
{
for (int i = 0; i < group.Count; i++)
{
Racer racer = group[i];
if (racer.Time == 0)
racer.Time = group.StartTime;
double speed = racer.RelativeSpeed + group.AverageSpeed;
racer.Time += Convert.ToInt32(60*60*1000*deltaMilage / speed);
}
}
// Converge cheaters
foreach (RaceGroup group in groups)
{
foreach (Racer racer in group)
{
if (racer.WillTryToCheatWith != null)
{
int averageTime = (racer.Time + racer.WillTryToCheatWith.Time) / 2;
int delta = averageTime - racer.Time;
racer.Time += delta / 2;
}
}
}
// Create race status object
foreach (RaceGroup group in groups)
{
foreach (Racer racer in group)
{
RacerStatus status = new RacerStatus() { SensorId = sensor.Id, RacerBibNumber = racer.RaceBibNumber, Timestamp = racer.Time };
sensor.RacerTimes.Add(status);
messagesToSend.Add(status);
}
}
previousMilageMarker = sensor.MileMarker;
}
messagesToSend.Sort(delegate(RacerStatus x, RacerStatus y)
{
if (x.Timestamp < y.Timestamp) return -1;
else if (x.Timestamp > y.Timestamp) return 1;
return 0;
});
}
public void Setup()
{
// Note: This method has poor cohesion. Without changing functionality, we will refactor this method in class to improve cohesion
SetupDefaults();
SetupSensors();
CreateRaceGroups();
// Setup race groups
foreach (RaceGroup group in groups)
group.Setup();
// Setup a 1 cheater in each group
for (int raceGroupA = 0; raceGroupA < groups.Count - 1; raceGroupA++)
{
int raceGroupB = raceGroupA + 1;
int cheaterIndex1 = RandomChooser.ChooseInt(0, groups[raceGroupA].Count);
Racer cheater1 = groups[raceGroupA][cheaterIndex1];
int cheaterIndex2 = RandomChooser.ChooseInt(0, groups[raceGroupB].Count);
Racer cheater2 = groups[raceGroupB][cheaterIndex2];
cheater1.WillTryToCheatWith = cheater2;
cheater2.WillTryToCheatWith = cheater1;
}
// Compute race times
messagesToSend = new List<RacerStatus>();
double previousMilageMarker = 0;
for (int sensorIndex = 0; sensorIndex < sensors.Count; sensorIndex++)
{
Sensor sensor = sensors[sensorIndex];
double deltaMilage = sensor.MileMarker - previousMilageMarker;
foreach (RaceGroup group in groups)
{
for (int i = 0; i < group.Count; i++)
{
Racer racer = group[i];
if (racer.Time == 0)
racer.Time = group.StartTime;
double speed = racer.RelativeSpeed + group.AverageSpeed;
racer.Time += Convert.ToInt32(60*60*1000*deltaMilage / speed);
}
}
// Converge cheaters
foreach (RaceGroup group in groups)
{
foreach (Racer racer in group)
{
if (racer.WillTryToCheatWith != null)
{
int averageTime = (racer.Time + racer.WillTryToCheatWith.Time) / 2;
int delta = averageTime - racer.Time;
racer.Time += delta / 2;
}
}
}
// Create race status object
foreach (RaceGroup group in groups)
{
foreach (Racer racer in group)
{
RacerStatus status = new RacerStatus() { SensorId = sensor.Id, RacerBibNumber = racer.RaceBibNumber, Timestamp = racer.Time };
sensor.RacerTimes.Add(status);
messagesToSend.Add(status);
}
}
previousMilageMarker = sensor.MileMarker;
}
messagesToSend.Sort(delegate(RacerStatus x, RacerStatus y)
{
if (x.Timestamp < y.Timestamp) return -1;
else if (x.Timestamp > y.Timestamp) return 1;
return 0;
});
}