// StartServerSocketAsync: Begin an async task to begin accepting incoming clients, refusing any that don't meet sanity conditions and proccessing packet data
public static async Task StartServerSocketAsync()
{
_cancellationServerToken = CancellationTokenSource.CreateLinkedTokenSource(new CancellationToken());
while (!_cancellationServerToken.Token.IsCancellationRequested)
{
await Task.Run(async() =>
{
TcpClient client = await SocketServer.AcceptTcpClientAsync();
client.NoDelay = true;
ProtocolModel.ConnectionClient connectionClient = new ProtocolModel.ConnectionClient
{
Id = Guid.NewGuid().ToString(),
Client = client
};
if (Clients.Count <= GameSize)
{
Clients.Add(connectionClient);
ReadFromClient(connectionClient);
}
else
{
Console.WriteLine("Connection Refused: " + connectionClient.Id);
connectionClient.Client.Close();
}
}, _cancellationServerToken.Token);
}
}
// ReadFromClient: Begin interpreting packets from the specified client, performing actions based on the data received
private static async void ReadFromClient(ProtocolModel.ConnectionClient connectionClient)
{
try
{
await Task.Run(() =>
{
while (connectionClient.Client.Connected)
{
if (connectionClient.Client.GetStream().DataAvailable)
{
// Data Processing
string json = DataUtils.ReadJsonFromStream(connectionClient.Client.GetStream(), SizeLimit);
var token = json.Split(new[] { PacketSplitter }, StringSplitOptions.RemoveEmptyEntries);
foreach (var msgToken in token)
{
ProtocolModel.Base baseMessage = JsonConvert.DeserializeObject <ProtocolModel.Base>(msgToken);
switch (baseMessage.Type)
{
// RequestJoin: Add Client Data to observable Player Array (Adding the GUID from the connectionClient) then re-broadcast the new playerList
case ProtocolModel.MessageType.RequestJoin:
{
ProtocolModel.Player player = JsonConvert.DeserializeObject <ProtocolModel.Player>(baseMessage.Data.ToString());
player.Id = connectionClient.Id;
Players.Add(player);
BroadcastPlayers();
RequestSendMessage($"--> {Players.First(i => i.Id == connectionClient.Id).Name} has joined.");
break;
}
// LobbyMessage: Broadcast a General Status Message from the Server
case ProtocolModel.MessageType.LobbyMessage:
{
SendFromServer(json);
break;
}
// RequestStart: Sets appropriate flags for Game Running, and begins auto-populating the game panel
case ProtocolModel.MessageType.RequestStart:
{
// Clear all Player points before starting
ClearScores();
GameRunning = true;
BeginShapeGen();
RequestSendMessage($"--> Game started by {Players.First(i => i.Id == connectionClient.Id).Name} (Host)");
break;
}
// RequestGameSettings: Requests a copy of the current public game settings available to all users
case ProtocolModel.MessageType.RequestGameSettings:
{
SendFromServer(JsonConvert.SerializeObject(new ProtocolModel.Base
{
Type = ProtocolModel.MessageType.RequestGameSettings,
Data = new ProtocolModel.GameSetting
{
GameName = GameName,
CurrentPlayers = Players.Count,
GameSize = GameSize + 1,
GameInProgress = GameRunning,
DefaultPointValues = AveragePoints,
MaxShapeCount = MaxShapeCount,
MaxShapeTicks = MaxShapeTicks,
Timer = GameRefreshTime.ToString(),
Win = GameWinPoint.ToString(),
PanelSize = new Point(GamePanelSizeX, GamePanelSizeY)
}
}));
break;
}
// RequestSendCoords: Queries the ClickCoords reported in order to check for Shape collission
case ProtocolModel.MessageType.RequestSendCoords:
{
ProtocolModel.ClickCoords point = JsonConvert.DeserializeObject <ProtocolModel.ClickCoords>(baseMessage.Data.ToString());
for (int j = ShapesPanel.Count - 1; j >= 0; j--)
{
var item = ShapesPanel[j];
if (ShapeUtils.ContainsShape(item.Type, point.Location, item.Location))
{
ShapesPanel.Remove(item);
Players.First(i => i.Id == connectionClient.Id).Score += item.Value;
BroadcastShapes();
BroadcastPlayers();
if (GameRunning)
{
int modifiedValue = item.Value >= 0 ? item.Value : Math.Abs(item.Value);
RequestSendMessage($"--> {Players.First(i => i.Id == connectionClient.Id).Name} has {(item.Value >= 0 ? "gained" : "lost")} {modifiedValue} {(modifiedValue > 1 ? "points" : "point")} from clicking a {item.Color.Name} {Enum.GetName(typeof(ProtocolModel.ShapeType), item.Type)}");
}
break;
}
}
break;
}
}
}
}
Thread.Sleep(25);
}
});
}
finally
{
// If the task ends unexpectedly or the player disconnects at some point,
// display a LEFT_GAME message in chat, and ensure their data is cleaned up
//
// Normally, this type of stuff would occur immediatly when the manual leave actions occur
// That is still highly TODO, so this event only plays whenever the next packet tries to passthrough
ProtocolModel.Player player = Players.First(i => i.Id == connectionClient.Id);
Players.Remove(player);
connectionClient.Client.Close();
BroadcastPlayers();
RequestSendMessage($"--> {player.Name} has left the game.");
}
}