// override object.Equals
public override bool Equals(object obj)
{
if (obj == null || GetType() != obj.GetType())
{
return(false);
}
Road other = obj as Road;
if (other == null)
{
return(false);
}
if (!Name.Equals(other.Name))
{
return(false);
}
return(true);
}
public static Road NewRoad(string roadName)
{
Road road;
if (roadName.StartsWith("M"))
{
road = new Motorway(roadName);
}
else if (roadName.StartsWith("A"))
{
road = new ARoad(roadName);
}
else
{
road = new Road(roadName);
}
Roads.Add(road);
Save();
return(road);
}