// starts main game process and wait for it to complete
public static void InitiateAndWaitForGameProcess(string gameserverExe, IEnumerable <string> args)
{
// here we're starting the script that initiates the game process
gameProcess = StartProcess(gameserverExe, args);
// as part of wrapping the main game server executable,
// we create event handlers to process the output from the game (standard output/standard error)
// based on this output, we will activate the server and process connected players
gameProcess.OutputDataReceived += DataReceived;
gameProcess.ErrorDataReceived += DataReceived;
// start reading output (stdout/stderr) from the game
gameProcess.BeginOutputReadLine();
gameProcess.BeginErrorReadLine();
// Call this when your game is done initializing and players can connect
// Note: This is a blocking call, and will return when this game server is either allocated or terminated
if (GameserverSDK.ReadyForPlayers())
{
// After allocation, we can grab the session cookie from the config
IDictionary <string, string> activeConfig = GameserverSDK.getConfigSettings();
var connectedPlayers = new List <ConnectedPlayer>();
// initial players includes the list of the players that are allowed to connect to the game
// they might or might not end up connecting
// in this sample we're nevertheless adding them to the list
foreach (var player in GameserverSDK.GetInitialPlayers())
{
connectedPlayers.Add(new ConnectedPlayer(player));
}
GameserverSDK.UpdateConnectedPlayers(connectedPlayers);
if (activeConfig.TryGetValue(GameserverSDK.SessionCookieKey, out string sessionCookie))
{
LogMessage($"The session cookie from the allocation call is: {sessionCookie}");
}
}
else
{
// No allocation happened, the server is getting terminated (likely because there are too many already in standing by)
LogMessage("Server is getting terminated.");
gameProcess?.Kill(); // we still need to call WaitForExit https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.process.kill?view=netcore-3.1#remarks
}
// wait till it exits or crashes
gameProcess.WaitForExit();
}
static void Main(string[] args)
{
// Test startup
GameserverSDK.Start();
GameserverSDK.RegisterShutdownCallback(() => Console.WriteLine("Server is shutting me down!!!!!"));
GameserverSDK.RegisterHealthCallback(getIsHealthy);
GameserverSDK.RegisterMaintenanceCallback(maintenanceScheduled);
// Test grabbing config
Console.WriteLine("Config before Active.");
foreach (var config in GameserverSDK.getConfigSettings())
{
Console.WriteLine($"{config.Key}: {config.Value}");
}
if (GameserverSDK.ReadyForPlayers())
{
IList <string> initialPlayers = GameserverSDK.GetInitialPlayers();
Console.WriteLine("Initial Players: " + string.Join(",", initialPlayers));
List <ConnectedPlayer> players = new List <ConnectedPlayer>()
{
new ConnectedPlayer("player1"),
new ConnectedPlayer("player2")
};
GameserverSDK.UpdateConnectedPlayers(players);
Console.WriteLine("Config after Active.");
foreach (var config in GameserverSDK.getConfigSettings())
{
Console.WriteLine($"{config.Key}: {config.Value}");
}
// Print a rainbow
int size = 13;
for (int i = 0; i < 5; i++)
{
String edge = new String(new char[size]).Replace('\0', ' ');
String middle = new String(new char[2 * i]).Replace('\0', ' ');
Console.WriteLine(edge + "====" + middle + "=====" + edge);
size--;
}
for (int i = 0; i < 4; i++)
{
String edge = new String(new char[size]).Replace('\0', ' ');
String middle = new String(new char[10]).Replace('\0', ' ');
Console.WriteLine(edge + "====" + middle + "=====" + edge);
}
// Leave running a bit more to see the heartbeats
for (int i = 0; i < 10; i++)
{
Console.WriteLine("...");
System.Threading.Thread.Sleep(1000);
}
}
else
{
Console.WriteLine("Did not activate, instead shutting down...");
}
Console.WriteLine("Press enter to exit.");
Console.ReadKey();
}
/// <summary>
/// Listens for any requests and responds with the game host's config values
/// </summary>
/// <param name="config">The config values we're returning</param>
private static void ProcessRequests()
{
while (_listener.IsListening)
{
try
{
HttpListenerContext context = _listener.GetContext();
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
LogMessage(string.Format("HTTP:Received {0}", request.Headers.ToString()));
IDictionary <string, string> config = null;
// For each request, "add" a connected player, but limit player count to 20.
const int maxPlayers = 20;
if (players.Count < maxPlayers)
{
players.Add(new ConnectedPlayer("gamer" + requestCount));
}
else
{
LogMessage($"Player not added since max of {maxPlayers} is reached. Current request count: {requestCount}.");
}
requestCount++;
GameserverSDK.UpdateConnectedPlayers(players);
config = GameserverSDK.getConfigSettings() ?? new Dictionary <string, string>();
// First, check if we need to delay shutdown for testing
if (config.TryGetValue(GameserverSDK.SessionCookieKey, out string sessionCookie) && sessionCookie.Equals("delayshutdown", StringComparison.OrdinalIgnoreCase))
{
_delayShutdown = true;
}
// If the server has been allocated, add the list of players to the response.
if (_isActivated)
{
config.Add("initialPlayers", string.Join(",", GameserverSDK.GetInitialPlayers()));
}
config.Add("isActivated", _isActivated.ToString());
config.Add("isShutdown", _isShutdown.ToString());
config.Add("assetFileText", _assetFileText);
config.Add("logsDirectory", GameserverSDK.GetLogsDirectory());
config.Add("sharedContentDirectory", GameserverSDK.GetSharedContentDirectory());
config.Add("installedCertThumbprint", _installedCertThumbprint);
config.Add("cmdArgs", _cmdArgs);
if (_nextMaintenance != DateTimeOffset.MinValue)
{
config.Add("nextMaintenance", _nextMaintenance.ToLocalTime().ToString());
}
foreach (GamePort portInformation in GameserverSDK.GetGameServerConnectionInfo().GamePortsConfiguration)
{
config.Add($"Public{portInformation.Name}", portInformation.ClientConnectionPort.ToString());
}
string content = JsonConvert.SerializeObject(config, Formatting.Indented);
response.AddHeader("Content-Type", "application/json");
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(content);
response.ContentLength64 = buffer.Length;
using (System.IO.Stream output = response.OutputStream)
{
output.Write(buffer, 0, buffer.Length);
}
// Once we're shut down, return a response one more time (so the tests can
// verify the _isShutdown field) and then actually terminate
if (_isShutdown)
{
_listener.Stop();
_listener.Close();
}
}
catch (HttpListenerException httpEx)
{
// This one is expected if we stopped the listener because we were asked to shutdown
LogMessage($"Got HttpListenerException: {httpEx.ToString()}, shutdown value is: {_isShutdown} ");
}
catch (Exception ex)
{
LogMessage($"Got Exception: {ex.ToString()}");
}
}
}
/// <summary>
/// Listens for any requests and responds with the game server's config values
/// </summary>
private static void ProcessRequests()
{
while (_listener.IsListening)
{
try
{
HttpListenerContext context = _listener.GetContext();
HttpListenerRequest request = context.Request;
HttpListenerResponse response = context.Response;
string requestMessage = $"HTTP:Received {request.Headers.ToString()}";
LogMessage(requestMessage);
IDictionary <string, string> config = null;
// For each request, "add" a connected player, but limit player count to 20.
const int maxPlayers = 20;
if (players.Count < maxPlayers)
{
players.Add(new ConnectedPlayer("gamer" + requestCount));
}
else
{
LogMessage($"Player not added since max of {maxPlayers} is reached. Current request count: {requestCount}.");
}
requestCount++;
GameserverSDK.UpdateConnectedPlayers(players);
config = GameserverSDK.getConfigSettings() ?? new Dictionary <string, string>();
config.Add("isActivated", _isActivated.ToString());
config.Add("assetFileText", _assetFileText);
config.Add("logsDirectory", GameserverSDK.GetLogsDirectory());
config.Add("installedCertThumbprint", _installedCertThumbprint);
if (_isActivated)
{
IList <string> players = GameserverSDK.GetInitialPlayers();
config.Add("players", players == null ? "NULL" : string.Join(", ", players));
}
config.Add("connectionInfo", JsonConvert.SerializeObject(GameserverSDK.GetGameServerConnectionInfo()));
if (_nextMaintenance != DateTimeOffset.MinValue)
{
config.Add("nextMaintenance", _nextMaintenance.ToLocalTime().ToString());
}
string content = JsonConvert.SerializeObject(config, Formatting.Indented);
response.AddHeader("Content-Type", "application/json");
byte[] buffer = System.Text.Encoding.UTF8.GetBytes(content);
response.ContentLength64 = buffer.Length;
using (System.IO.Stream output = response.OutputStream)
{
output.Write(buffer, 0, buffer.Length);
}
}
catch (HttpListenerException httpEx)
{
// This one is expected if we stopped the listener because we were asked to shutdown
LogMessage($"Got HttpListenerException: {httpEx.ToString()}, we are being shut down.");
}
catch (Exception ex)
{
LogMessage($"Got Exception: {ex.ToString()}");
}
}
}
// starts main game process and wait for it to complete
public static void InitiateAndWaitForGameProcess(string gameserverExe, IEnumerable <string> args)
{
// Here we're starting the script that initiates the game process
activeConfig = GameserverSDK.getConfigSettings();
// When Wrapper is running in a container, Port Information (Port Name, Port Number, and Protocol) is already set as build configuration.
// For example, if you already set port number as 80 in container build configuration, activeConfig will return 80 as port number.
// But if Wrapper is running as a process, port will be mapped internally by MPS, so different number will be dynamically assigned.
if (activeConfig.TryGetValue(portName, out string listeningPortString))
{
GameserverSDK.LogMessage($"{portName}:{listeningPortString} was found in GSDK Config Settings.");
_listeningPort = listeningPortString;
}
else
{
LogMessage($"Cannot find {portName} in GSDK Config Settings. Please make sure the LocalMultiplayerAgent is running " +
$"and that the MultiplayerSettings.json file includes correct {portName} as a GamePort Name.");
return;
}
// Check if there is any process already using the port (_listeningPort). This will only work for Windows.
if (CheckIfPortIsUsed(gameserverExe))
{
return;
}
;
// We pass port number as a 3rd argument when we start fakegame.exe
// Port number is grabbed via GSDK and will be passed to fake game as a listening port.
gameProcess = StartProcess(gameserverExe, string.Join(' ', args.Append(_listeningPort)));
// as part of wrapping the main game server executable,
// we create event handlers to process the output from the game (standard output/standard error)
// based on this output, we will activate the server and process connected players
gameProcess.OutputDataReceived += DataReceived;
gameProcess.ErrorDataReceived += DataReceived;
// start reading output (stdout/stderr) from the game
gameProcess.BeginOutputReadLine();
gameProcess.BeginErrorReadLine();
// Call this when your game is done initializing and players can connect
// Note: This is a blocking call, and will return when this game server is either allocated or terminated
if (GameserverSDK.ReadyForPlayers())
{
// After allocation, we can grab the session cookie from the config
activeConfig = GameserverSDK.getConfigSettings();
var connectedPlayers = new List <ConnectedPlayer>();
// initial players includes the list of the players that are allowed to connect to the game
// they might or might not end up connecting
// in this sample we're nevertheless adding them to the list
foreach (var player in GameserverSDK.GetInitialPlayers())
{
connectedPlayers.Add(new ConnectedPlayer(player));
}
GameserverSDK.UpdateConnectedPlayers(connectedPlayers);
if (activeConfig.TryGetValue(GameserverSDK.SessionCookieKey, out string sessionCookie))
{
LogMessage($"The session cookie from the allocation call is: {sessionCookie}");
}
}
else
{
// No allocation happened, the server is getting terminated (likely because there are too many already in standing by)
LogMessage("Server is getting terminated.");
gameProcess?.Kill(); // we still need to call WaitForExit https://docs.microsoft.com/en-us/dotnet/api/system.diagnostics.process.kill?view=netcore-3.1#remarks
}
// wait till it exits or crashes
gameProcess.WaitForExit();
}
