/// <summary>
/// Relay event to all clients
/// </summary>
/// <param name="e"></param>
private void RelayMessage(ChatEventArgs e)
{
// Event
ChatEventHandler temp = ChatEvent;
if (temp != null)
{
// Send current evnets
foreach (ChatEventHandler handler in temp.GetInvocationList())
{
if (handler != myEventHandler)
{
handler.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
}
}
}
}
//public void Whisper(string to, string msg)
public void Whisper(int imageNumber, bool isMoving)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.ReceiveWhisper;
e.name = this.name;
e.imageNumber = imageNumber;
e.isMoving = isMoving;
// e.message = msg;
RelayMessage(e);
//try
//{
// ChatEventHandler chatterTo;
// lock (syncObj)
// {
// chatterTo = chatters[to];
// }
// chatterTo.BeginInvoke(this, e, new AsyncCallback(EndAsync), null);
//}
//catch (KeyNotFoundException)
//{
// When errors occur
//}
}
/// <summary>
/// Raise Event
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void MyEventHandler(object sender, ChatEventArgs e)
{
try
{
switch (e.msgType)
{
case MessageType.Receive:
// callback.Receive(e.name, e.message);
callback.Receive(e.name, e.x, e.y, e.z);
Console.WriteLine("callback Receive from " + e.name + "(" + e.x + ", " + e.y + ")");
break;
case MessageType.ReceiveWhisper:
//callback.ReceiveWhisper(e.name, e.message);
callback.ReceiveWhisper(e.name, e.imageNumber, e.isMoving);
Console.WriteLine("callback ReceiveWhisper from " + e.name + "(" + e.imageNumber + ", " + e.isMoving + ")");
break;
case MessageType.ReceiveStart:
callback.ReceiveStart(e.name, e.posX, e.posY);
Console.WriteLine("callback Start request from " + e.name);
break;
case MessageType.ReceiveReset:
callback.ReceiveReset(e.name);
Console.WriteLine("callback Reset request from " + e.name);
break;
case MessageType.UserEnter:
callback.UserEnter(e.name);
Console.WriteLine("callback UserEnter " + e.name);
break;
case MessageType.UserLeave:
callback.UserLeave(e.name);
Console.WriteLine("callback UserLeave " + e.name);
break;
}
}
catch
{
Leave();
}
}
public void Start(string name)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.ReceiveStart;
e.name = this.name;
// Generate Random Position
Random random = new Random();
for (int i = 0; i < e.posX.Length; i++)
{
int _tempX = random.Next(0, 900);
int _tempY = random.Next(100, 600);
// Avoid overlapping between points
for (int j = 0; j <= i; j++)
{
// Ignore check logic for the first location
if (i > 0 && e.posX[j] > 0)
{
while ((Math.Abs(e.posX[j] - _tempX) < 200) && (Math.Abs(e.posY[j] - _tempY) < 200))
{
_tempX = random.Next(0, 900);
_tempY = random.Next(100, 600);
j = 0;
}
}
}
e.posX[i] = _tempX;
e.posY[i] = _tempY;
}
// Broadcast to all clients
BroadcastMessage(e);
}
//public void Say(string msg)
public void Say(int x, int y, string z)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.Receive;
e.name = this.name;
// e.message = msg;
//Console.WriteLine("server: " + " I got what you are saying");
e.x = x;
e.y = y;
e.z = z;
RelayMessage(e);
}
public void Reset(string name)
{
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.ReceiveReset;
e.name = this.name;
// Broadcast to all clients
BroadcastMessage(e);
}
public void Leave()
{
if (this.name == null) return;
lock (syncObj)
{
chatters.Remove(this.name);
}
ChatEvent -= myEventHandler;
// Raise New Event
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.UserLeave;
e.name = this.name;
RelayMessage(e);
}
/// <summary>
/// * JOIN
/// When the user join the chat room first
/// </summary>
/// <param name="name">User Name</param>
/// <returns>Return user list if there are no the same name in the list</returns>
public string[] Join(string name)
{
Console.WriteLine("User Name: " + name);
myEventHandler = new ChatEventHandler(MyEventHandler);
lock (syncObj)
{
if (!chatters.ContainsKey(name))// Check there are the same name in the list
{
// Add name and event
this.name = name;
chatters.Add(name, MyEventHandler);
// Set the channel for user
callback = OperationContext.Current.GetCallbackChannel<IChatCallback>();
// Send "UserEnter" event
ChatEventArgs e = new ChatEventArgs();
e.msgType = MessageType.UserEnter;
e.name = name;
RelayMessage(e);
// Add Deligater
ChatEvent += myEventHandler;
// Send the user list
string[] list = new string[chatters.Count];
lock (syncObj)
{
chatters.Keys.CopyTo(list, 0);
}
return list;
}
else // If the there are the same name in the list
{
return null;
}
}
}