private CitationSeverity CalculateSeverity(ITrafficState trafficState, ILegalEntity citee)
{
int speedDiff = trafficState.IncidentSpeed - trafficState.SpeedLimit;
// If it's the citee's birthday, knock 5 MPH off of their speed diff.
if (citee.BirthDate.Month == _calendar.CurrentDate.Month &&
citee.BirthDate.Day == _calendar.CurrentDate.Day)
{
speedDiff -= 5;
}
CitationSeverity severity;
if (speedDiff > 25)
{
severity = CitationSeverity.Large;
}
else if (speedDiff > 10)
{
severity = CitationSeverity.Medium;
}
else if (speedDiff > 0)
{
severity = CitationSeverity.Small;
}
else
{
severity = CitationSeverity.None;
}
return(severity);
}
public IEnumerable <ICitation> IssueCitations(ITrafficState trafficState, ILegalEntity citee)
{
List <ICitation> citations;
citations = TrafficLaws
.Where(x => x.ShouldIssueCitation(trafficState, citee))
.Select(x => x.CreateCitation(trafficState, citee, this))
.ToList();
return(citations);
}
/// <summary>
/// 檢查是否可以切換燈號
/// </summary>
/// <param name="state">目前燈號</param>
/// <returns>是否可以切換</returns>
public bool ChkContext(ITrafficState state)
{
return(state.GetMessage() == MessageEnum.Red);
}
public ICitation CreateCitation(ITrafficState trafficState, ILegalEntity citee, ITicketer issuer)
{
return(new SpeedingCitation(_calendar, issuer, citee, CalculateSeverity(trafficState, citee)));
}
public bool ShouldIssueCitation(ITrafficState trafficState, ILegalEntity citee)
{
var severity = CalculateSeverity(trafficState, citee);
return(severity != CitationSeverity.None);
}
