static async Task PushUpdates(BufferBlock<UpdatePacket> sendQueue, ConnectionHub connectionHub)
{
while (true)
{
var next = await sendQueue.ReceiveAsync();
var json = JSON.Serialize<UpdatePacket>(next);
await connectionHub.Broadcast(json);
}
}
static async Task Listen(ConnectionHub connectionHub, BufferBlock<GameTask> gameTasks)
{
var listener = new TcpListener(IPAddress.Any, 5678);
listener.Start();
while (true)
{
var client = await listener.AcceptTcpClientAsync();
ProcessRequest(client, connectionHub, gameTasks);
}
}
static async Task RunGame()
{
var connectionHub = new ConnectionHub();
var gameTasks = new BufferBlock<GameTask>();
var sendChannel = new BufferBlock<UpdatePacket>();
var players = new List<PlayerState>();
var gp = new GamePointer();
gp.Game = new Sweeper();
Task listen = Listen(connectionHub, gameTasks);
Task hubworker = connectionHub.StartWorker();
Task pushupdates = PushUpdates(sendChannel, connectionHub);
while (true)
{
var task = await gameTasks.ReceiveAsync();
await task.Process(gp, players, sendChannel);
}
}
static async Task ProcessRequest(TcpClient client, ConnectionHub connectionHub, BufferBlock<GameTask> gameTasks)
{
var rw = client.GetStream();
var reader = new StreamReader(rw);
var writer = new StreamWriter(rw);
writer.AutoFlush = true;
string next;
var headers = new Dictionary<string, string>();
var queryStrings = new Dictionary<string, string>();
string path = "";
string extension = "";
var lines = new List<string>();
var count = 0;
while ((next = await reader.ReadLineAsync()) != null && next != "")
{
if (count > 0)
{
var header = next.Split(':');
headers[header[0]] = header[1].Trim();
}
else
{
Action parsePath = () =>
{
var triple = next.Split(' ');
if (triple.Length != 3)
{
//quest not in method, path, http form
return;
}
var fullPath = triple[1].Split('?');
if (fullPath.Length >0 && fullPath[0].Length>0)
{
path = fullPath[0].Substring(1).ToLower();
}
if (path.IndexOf('.') >= -1)
{
extension = path.Split('.').Last();
}
if (fullPath.Length != 2)
{
//no query string
return;
}
var kvps = fullPath[1].Split('&');
foreach (var kvp in kvps)
{
var split = kvp.Split('=');
if (split.Length == 2)
{
queryStrings[split[0]] = split[1];
}
}
};
parsePath();
}
count++;
}
var okextensions = new[] { "html", "js", "css" };
string RESPONSE = "HTTP/1.1 200 OK\r\nContent-Length: {0}\r\nContent-Type: {1}; charset=UTF-8\r\nServer: Example\r\nDate: Wed, 17 Apr 2013 12:00:00 GMT\r\n\r\n{2}";
switch (path)
{
case "ws":
var ws = await Websocket.Upgrade(rw, headers);
await ProcessWebSocket(ws, connectionHub, gameTasks);
break;
case "":
var body = File.ReadAllText("content/"+"index.html");
await writer.WriteAsync(string.Format(RESPONSE, body.Length, "text/html", body));
break;
default:
path = "content/" + path;
if (extension == "html")
{
var content = File.ReadAllText(path);
await writer.WriteAsync(string.Format(RESPONSE, content.Length, "text/html", content));
}
else if (extension == "js")
{
var content = File.ReadAllText(path);
var bytes = Encoding.UTF8.GetBytes(content);
await writer.WriteAsync(string.Format(RESPONSE, bytes.Length, "text/javascript", content));
}
else if (extension == "css")
{
var content = File.ReadAllText(path);
await writer.WriteAsync(string.Format(RESPONSE, content.Length, "text/css", content));
}
else if (extension == "ico")
{
var content = File.ReadAllText(path);
await writer.WriteAsync(string.Format(RESPONSE, content.Length, "image/x-icon", content));
}
break;
}
rw.Close();
}
static async Task ProcessWebSocket(Websocket ws, ConnectionHub connectionHub, BufferBlock<GameTask> gameTasks)
{
var uc = new UserConnection(ws);
await connectionHub.Add(uc);
var hash = Guid.NewGuid().ToString();
var player = new PlayerState() { Name = "player", Color = "blue", Hash = hash };
var first = new PlayerInit() { Hash = hash, Height = 0, Width = 0 };
var json = JSON.Serialize(first);
var initPacket = new UpdatePacket() { Type = "init", Data = json };
var ip = JSON.Serialize(initPacket);
await uc.SendAsync(ip);
ReadWebsocket(ws, gameTasks, uc, player);
var initTask = new InitTask(uc, player);
await gameTasks.SendAsync(initTask);
await uc.Worker();
Console.WriteLine("disconnected");
//FIXME: this is never pushed to currently connected clients
player.Dead = true;
await connectionHub.Remove(uc);
}