private void MoveTexi(object sender, RoutedEventArgs e)
{
if (this.texiHighlight.Stroke != null)
{
try
{
int moveFromRow = Grid.GetRow(this.texiHighlight);
int moveFromCol = Grid.GetColumn(this.texiHighlight);
int moveToRow = int.Parse(this.moveToRow.Text);
int moveToCol = int.Parse(this.moveToCol.Text);
Location destination = new Location(moveToRow, moveToCol);
Texi texi = this.center.Layout[moveFromRow][moveFromCol].Texi;
this.texiHighlight.Stroke = null;
texi.Move(destination);
}
catch (ArgumentNullException)
{
this.PrintTexiMessage("No coordinates.");
}
catch (FormatException)
{
this.PrintTexiMessage($"Coordinates number range is between 1 and {this.center.Size.Col}.");
}
catch (OverflowException)
{
this.PrintTexiMessage("Coordinates number range is between 1 and {this.center.Size.Col}.");
}
}
else
{
this.PrintTexiMessage("No texi was selected.");
}
}
private void UpdateClient(Socket recSoc, Employee employee, Texi texi, BinaryFormatter bf)
{
// Convert employee and texi to serializable objects.
SerializableEmployee serEmp = employee.ToSerializable();
SerializableTexi serTexi = texi.ToSerializable();
// Serialize and send the employee object.
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, serEmp);
recSoc.Send(ms.ToArray());
}
// Serialize and send the texi object.
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, serTexi);
recSoc.Send(ms.ToArray());
}
// If the employee has reached his detination remove thred from globalTimer.
if (employee.Location == employee.Destination)
{
using (MemoryStream ms = new MemoryStream())
{
bf.Serialize(ms, Encoding.ASCII.GetBytes("Destination reached."));
recSoc.Send(ms.ToArray());
}
this.globalTimer.Tick -= (o, arg) => this.UpdateClient(recSoc, employee, texi, bf);
}
}
private void SelectTexi(object sender, SelectedCellsChangedEventArgs e)
{
if (this.texiList.SelectedItem != null)
{
// Get the texi as an object from the list.
Texi texi = this.texiList.SelectedItem as Texi;
int row = texi.Row;
int col = texi.Col;
// Color the texiHighlight black.
if (this.texiHighlight.Stroke == null)
{
this.texiHighlight.Stroke = new SolidColorBrush(Colors.Black);
}
// Move the texiHighlight to the selected texi.
Grid.SetRow(this.texiHighlight, row);
Grid.SetColumn(this.texiHighlight, col);
this.center.SelectedTexis = this.texiList.SelectedItems;
}
}
private void ClientConnectionWorker(object sender, DoWorkEventArgs e)
{
Socket recSoc = (Socket)e.Argument; // Connection socket.
BinaryFormatter bf = new BinaryFormatter();
Employee employee = null; // Thread employee.
// Log
Application.Current.Dispatcher.Invoke(() => this.icLog.Items.Add(new { message = "+ Client connection received..." }));
// Keep listen to data from client.
while (true)
{
byte[] data = new byte[8192];
int len;
try
{
len = recSoc.Receive(data); // Receive client data.
Array.Resize(ref data, len); // Resize data array from 8192 to the datas' real size.
// Dserialize the received object.
var deserializedData = this.DeserializeClientData(data, bf, employee);
if (deserializedData.GetType() == typeof(string))
{
// Send layout size.
if ((string)deserializedData == "Send layout size please.")
{
using (MemoryStream sizeStrem = new MemoryStream())
{
// Serialize the size object.
bf.Serialize(sizeStrem, this.center.Size);
// Send the data.
recSoc.Send(sizeStrem.ToArray());
// Log
this.Log("+ Sending layout size to client.");
}
}
}
else
{
// Add an new employee.
if (deserializedData.GetType() == typeof(SerializableEmployee))
{
employee = new Employee((SerializableEmployee)deserializedData, this.center);
this.center.AddEmployee(employee);
this.dispatcher.Invoke(() => this.icLog.Items.Add(new { message = "+ Received employee information: Id " + employee.Id })); // Log
}
// Call a texi for the employee.
else if (deserializedData.GetType() == typeof(Location))
{
Texi texi = this.dispatcher.Invoke(() => this.center.CallTexi(employee, (Location)deserializedData));
if (texi != null)
{
this.globalTimer.Tick -= this.UpdateLayoutView;
this.globalTimer.Tick += (o, arg) => this.UpdateClient(recSoc, employee, texi, bf);
this.globalTimer.Tick += this.UpdateLayoutView;
}
else
{
// TODO
}
}
}
}
// Client data is null.
catch (NullReferenceException)
{
Application.Current.Dispatcher.Invoke(() => this.icLog.Items.Add(new { message = "- Employee " + employee.Id + "- Client data is null." })); // Log
}
// If the socket connection ended close the connection.
catch (SocketException)
{
this.center.RemoveEmployee(employee); // Remove employee from employees list.
Application.Current.Dispatcher.Invoke(() => this.icLog.Items.Add(new { message = "- Employee " + employee.Id + " has disconnected." })); // Log
Thread.CurrentThread.Abort(); // Close thread.
}
}
}
