/// <summary>
/// Gets the get restriction function for the given profile.
/// </summary>
/// <param name="db">The router db.</param>
/// <param name="profile">The vehicle profile.</param>
/// <param name="first">When true, only restrictions starting with given vertex, when false only restrictions ending with given vertex already reversed, when null all restrictions are returned.</param>
public static Func <uint, IEnumerable <uint[]> > GetGetRestrictions(this RouterDb db, Profiles.Profile profile, bool?first)
{
var vehicleTypes = new List <string>(profile.VehicleTypes);
vehicleTypes.Insert(0, string.Empty);
var restrictionDbs = new RestrictionsDb[vehicleTypes.Count];
for (var i = 0; i < vehicleTypes.Count; i++)
{
RestrictionsDb restrictionsDb;
if (db.TryGetRestrictions(vehicleTypes[i], out restrictionsDb))
{
restrictionDbs[i] = restrictionsDb;
}
}
return((vertex) =>
{
var restrictionList = new List <uint[]>();
for (var i = 0; i < restrictionDbs.Length; i++)
{
var restrictionsDb = restrictionDbs[i];
if (restrictionsDb == null)
{
continue;
}
var enumerator = restrictionsDb.GetEnumerator();
if (enumerator.MoveTo(vertex))
{
while (enumerator.MoveNext())
{
if (first.HasValue && first.Value)
{
if (enumerator[0] == vertex)
{
restrictionList.Add(enumerator.ToArray());
}
}
else if (first.HasValue && !first.Value)
{
if (enumerator[(int)enumerator.Count - 1] == vertex)
{
var array = enumerator.ToArray();
array.Reverse();
restrictionList.Add(array);
}
}
else
{
restrictionList.Add(enumerator.ToArray());
}
}
}
}
return restrictionList;
});
}
/// <summary>
/// Returns true if this db contains complex restrictions for the given vehicle type.
/// </summary>
public static bool HasComplexRestrictions(this RouterDb db, string vehicleType)
{
RestrictionsDb restrictions;
if (db.TryGetRestrictions(vehicleType, out restrictions))
{
return(restrictions.HasComplexRestrictions);
}
return(false);
}
/// <summary>
/// Returns true if this db contains restrictions for the given vehicle type.
/// </summary>
public static bool HasRestrictions(this RouterDb db, string vehicleType)
{
RestrictionsDb restrictions;
return(db.TryGetRestrictions(vehicleType, out restrictions));
}