private static tMyPlace updateCowPosition(tMyPlace currentMyPlace)
{
tMyPlace nextMyPlace = currentMyPlace;
List <tPlace> places = currentMyPlace.Place.ToList();
tPlace currentPlace = places[0];
List <tPlace> neighbours = places.Where((value, index) => index != 0).ToList();
List <tPosition> wolvesPositions = neighbours.Where(neighbour => neighbour.Wolf)
.Select(wolf => wolf.Position).ToList();
List <tPosition> validPositions = neighbours
.Where(neighbour => neighbour.Position != null && !neighbour.Obstacle &&
neighbour.Grass > 0 && !neighbour.Wolf && !neighbour.Cow &&
!neighbour.Dog)
.Select(validNeighbour => validNeighbour.Position).ToList();
if (currentPlace.Grass > 0)
{
validPositions.Add(currentPlace.Position);
}
if (validPositions.Count > 0)
{
if (wolvesPositions.Count > 0)
{
double maxDistance = 0;
tPosition maxDistancePosition = null;
foreach (tPosition validPosition in validPositions)
{
double distance = 0;
foreach (tPosition wolfPosition in wolvesPositions)
{
distance += euclidianDistance(validPosition, wolfPosition);
}
double averageDistance = distance / wolvesPositions.Count;
if (averageDistance > maxDistance)
{
maxDistance = averageDistance;
maxDistancePosition = validPosition;
}
}
nextMyPlace.Place[0].Position = maxDistancePosition;
}
else
{
nextMyPlace.Place[0].Position = randomTPositionFromList(validPositions);
}
}
return(nextMyPlace);
}
private static string serializeTMyPlaceToString(tMyPlace myPlace, XmlSerializer serializer)
{
string xml = "";
XmlWriterSettings settings = new XmlWriterSettings();
settings.Indent = false;
using (MemoryStream stream = new MemoryStream())
using (XmlWriter writer = XmlWriter.Create(stream, settings))
{
serializer.Serialize(writer, myPlace);
xml = Encoding.ASCII.GetString(stream.ToArray());
}
// XmlWriter generates ??? in the beginning
return(xml.Substring(3) + '\n');
}
private static void StartListening()
{
// Local endpoint for TCP socket
IPAddress ipAddress = IPAddress.Parse("127.0.0.1");
IPEndPoint localEndPoint = new IPEndPoint(ipAddress, portServer);
Socket listener = new Socket(ipAddress.AddressFamily, SocketType.Stream, ProtocolType.Tcp);
// (De)serializer
XmlSerializer serializer = new XmlSerializer(typeof(tMyPlace));
try
{
// Bind socket to local endpoint and start listenning
listener.Bind(localEndPoint);
listener.Listen(10);
// Block waiting for connection
Socket handler = listener.Accept();
while (true)
{
string received = socketStreamToString(handler, serializer).Trim();
tMyPlace currentMyPlace = (tMyPlace)serializer
.Deserialize(new MemoryStream(Encoding.ASCII.GetBytes(received)));
tMyPlace nextMyPlace = updateWolfPosition(currentMyPlace);
string serialized = serializeTMyPlaceToString(nextMyPlace, serializer);
handler.Send(Encoding.ASCII.GetBytes(serialized));
//handler.Shutdown(SocketShutdown.Both);
//handler.Close();
}
}
catch (Exception e)
{
Console.WriteLine(e.ToString());
}
}
private static tMyPlace updateWolfPosition(tMyPlace currentMyPlace)
{
tMyPlace nextMyPlace = currentMyPlace;
List <tPlace> places = nextMyPlace.Place.ToList();
//TODO: IMPLEMENT A STAMINA SYSTEM, EXAMPLE:
// Stamina starts at 100
// Each movement spends 1 stamina
// Staying restores 1 stamina
// Eating a cow restores 50 stamina
//TODO: GET DOGS POSITIONS TO LATER RUN
List <tPosition> dogsPositions = places.Where(neighbour => neighbour.Dog)
.Select(dog => dog.Position).ToList();
List <tPosition> cowsPositions = places.Where(place => place.Cow)
.Select(cow => cow.Position).ToList();
List <tPosition> validPositions = places
.Where(place => place.Position != null && !place.Obstacle && !place.Wolf && !place.Dog && !place.Cow)
.Select(validPlace => validPlace.Position).ToList();
validPositions.Add(places[0].Position);
if (validPositions.Count > 0)
{
if (dogsPositions.Count > 0)
{
double maxDistance = 0;
tPosition maxDistancePosition = null;
foreach (tPosition validPosition in validPositions)
{
double distance = 0;
foreach (tPosition dogPosition in dogsPositions)
{
distance += euclidianDistance(validPosition, dogPosition);
}
double averageDistance = distance / dogsPositions.Count;
if (averageDistance > maxDistance)
{
maxDistance = averageDistance;
maxDistancePosition = validPosition;
}
}
nextMyPlace.Place[0].Position = maxDistancePosition;
}
else if (cowsPositions.Count > 0)
{ // choose random cow and move to it
tPosition selectedCowPosition = randomTPositionFromList(cowsPositions);
nextMyPlace.Place[0].Position = selectedCowPosition;
}
else
{
nextMyPlace.Place[0].Position = randomTPositionFromList(validPositions);
}
}
return(nextMyPlace);
}
