protected Link FindLink(City fromC, City toC, TransportModes mode)
{
return((from l in routes
where mode.Equals(l.TransportMode) &&
((fromC.Equals(l.FromCity) && toC.Equals(l.ToCity)) ||
(toC.Equals(l.FromCity) && fromC.Equals(l.ToCity)))
select new Link(fromC, toC, l.Distance, TransportModes.Rail)).FirstOrDefault());
}
private IEnumerable <Link> GetListOfAllOutgoingRoutes(City visitingCity, TransportMode mode)
{
foreach (var route in routes)
{
if (mode.Equals(route.TransportMode))
{
if (visitingCity.Equals(route.FromCity) || visitingCity.Equals(route.ToCity))
{
yield return(route);
}
}
}
}
/// <summary>
/// checks if both cities of the link are included in the passed city list
/// </summary>
/// <param name="cities">list of city objects</param>
/// <returns>true if both link-cities are in the list</returns>
/*internal bool IsIncludedIn(List<City> cities)
* {
* var included = cities.Any(c => c.Name == FromCity.Name || c.Name == ToCity.Name);
* return included;
* }*/
public override bool Equals(object obj)
{
if (obj.GetType() == typeof(Link))
{
var comp = (Link)obj;
return(fromCity.Equals(comp.FromCity) && toCity.Equals(comp.toCity) && distance.Equals(comp.Distance));
}
return(false);
}
/// <summary>
/// Finds all neighbor cities of a city.
/// </summary>
/// <param name="city">source city</param>
/// <param name="mode">transportation mode</param>
/// <returns>list of neighbor cities</returns>
private List <City> FindNeighbours(City city, TransportModes mode)
{
var neighbors = new List <City>();
foreach (var r in routes)
{
if (mode.Equals(r.TransportMode))
{
if (city.Equals(r.FromCity))
{
neighbors.Add(r.ToCity);
}
else if (city.Equals(r.ToCity))
{
neighbors.Add(r.FromCity);
}
}
}
return(neighbors);
}
/// <summary>
/// Finds all neighbor cities of a city.
/// </summary>
/// <param name="city">source city</param>
/// <param name="mode">transportation mode</param>
/// <returns>list of neighbor cities</returns>
private List<City> FindNeighbours(City city, TransportModes mode)
{
List<City> neighbors = new List<City>();
foreach (Link r in routes)
{
if (mode.Equals(r.TransportMode))
{
if (city.Equals(r.FromCity))
{
neighbors.Add(r.ToCity);
}
else if (city.Equals(r.ToCity))
{
neighbors.Add(r.FromCity);
}
}
}
return neighbors;
}
protected Link FindLink(City fromC, City toC, TransportModes mode)
{
return (from l in routes
where mode.Equals(l.TransportMode)
&& ((fromC.Equals(l.FromCity) && toC.Equals(l.ToCity))
|| (toC.Equals(l.FromCity) && fromC.Equals(l.ToCity)))
select new Link(fromC, toC, l.Distance, TransportModes.Rail)).FirstOrDefault();
}
/// <summary>
/// Finds the link between two cities.
/// </summary>
/// <param name="c1">first city</param>
/// <param name="c2">second city</param>
/// <param name="t"></param>
/// <returns>found link or null</returns>
protected Link FindLink(City c1, City c2, TransportModes t)
{
foreach (Link l in routes)
{
if (t.Equals(l.TransportMode) &&
((c1.Equals(l.FromCity) && c2.Equals(l.ToCity))
|| (c2.Equals(l.FromCity) && c1.Equals(l.ToCity))))
{
return new Link(c1, c2, l.Distance, TransportModes.Rail);
}
}
return null;
}
