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Fix Epic launching after EAC #152

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Fix Epic launching after EAC #152

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132 changes: 75 additions & 57 deletions RLBotCS/ManagerTools/LaunchManager.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -17,25 +17,6 @@ static class LaunchManager

private static readonly ILogger Logger = Logging.GetLogger("LaunchManager");

public static string? GetGameArgs(bool kill)
{
Process[] candidates = Process.GetProcesses();

foreach (var candidate in candidates)
{
if (!candidate.ProcessName.Contains("RocketLeague"))
continue;

string args = GetProcessArgs(candidate);
if (kill)
candidate.Kill();

return args;
}

return null;
}

public static int FindUsableGamePort(int rlbotSocketsPort)
{
Process[] candidates = Process.GetProcessesByName("RocketLeague");
Expand Down Expand Up @@ -73,6 +54,33 @@ public static int FindUsableGamePort(int rlbotSocketsPort)
return DefaultGamePort;
}

private static void KillGame()
{
foreach (var candidate in Process.GetProcesses())
{
if (!candidate.ProcessName.Contains("RocketLeague"))
continue;

candidate.Kill();
return;
}
}

private static string? GetGameArgs()
{
Process[] candidates = Process.GetProcesses();

foreach (var candidate in candidates)
{
if (!candidate.ProcessName.Contains("RocketLeague"))
continue;

return GetProcessArgs(candidate);
}

return null;
}

private static string GetProcessArgs(Process process)
{
#if WINDOWS
Expand Down Expand Up @@ -270,71 +278,81 @@ int gamePort
$"-applaunch {SteamGameId} " + string.Join(" ", GetIdealArgs(gamePort));

Logger.LogInformation(
$"Starting Rocket League with args {steamPath} {steam.StartInfo.Arguments}"
$"Starting Rocket League with Steam: \"{steamPath}\" {steam.StartInfo.Arguments}"
);
steam.Start();
break;
case RLBot.Flat.Launcher.Epic:
bool nonRLBotGameRunning = IsRocketLeagueRunning();
bool isRocketLeagueRunning = IsRocketLeagueRunning();
bool isRocketLeagueRunningWithArgs = IsRocketLeagueRunningWithArgs();

// we don't need to start the game because there's another instance of non-rlbot rocket league open
if (!nonRLBotGameRunning)
if (isRocketLeagueRunningWithArgs)
{
// we need a hack to launch the game properly
// start the game
Process launcher = new();
launcher.StartInfo.FileName = "cmd.exe";
launcher.StartInfo.Arguments =
"/c start \"\" \"com.epicgames.launcher://apps/9773aa1aa54f4f7b80e44bef04986cea%3A530145df28a24424923f5828cc9031a1%3ASugar?action=launch&silent=true\"";
launcher.Start();

// wait for it to start
Thread.Sleep(1000);
// Nothing to do
return;
}

if (isRocketLeagueRunning && !isRocketLeagueRunningWithArgs)
{
Logger.LogError("Please close Rocket League so RLBot can launch it in -rlbot mode.");
return;
}

// To launch RocketLeague for Epic we need some extra login parameters from Epic.
// We get these by launching the game normally, reading the args, and then closing it again.

// Launch game normally
Process launcher = new();
launcher.StartInfo.FileName = "cmd.exe";
launcher.StartInfo.Arguments =
"/c start \"\" \"com.epicgames.launcher://apps/9773aa1aa54f4f7b80e44bef04986cea%3A530145df28a24424923f5828cc9031a1%3ASugar?action=launch&silent=true\"";
launcher.Start();
Thread.Sleep(1000); // Wait a bit

// Get the login args
Logger.LogInformation("Finding Rocket League...");
string? args = null;

// get the game path & login args, the quickly kill the game
// todo: add max number of retries
while (args is null)
int triesLeft = 20;
while (args is null && triesLeft-- > 0)
{
// don't kill the game if it was already running, and not for RLBot
args = GetGameArgs(!nonRLBotGameRunning);
args = GetGameArgs();
Thread.Sleep(1000);
}

KillGame();
if (args is null)
throw new Exception("Failed to get Rocket League args");
Logger.LogDebug("Epic RocketLeague args: {}", args);

// Wait for the game to fully close
Logger.LogDebug("Waiting for Rocket League to fully close...");
while (IsRocketLeagueRunning())
Thread.Sleep(500);

string directGamePath = ParseCommand(args)[0];
Logger.LogInformation($"Found Rocket League at \"{directGamePath}\"");

// append RLBot args
args = args.Replace(directGamePath, "");
args = args.Replace("\"\"", "");
// Collect arguments and prepare RocketLeague process
//string directGamePath = ParseCommand(args)[0];
//Logger.LogInformation($"Found Rocket League at \"{directGamePath}\"");
string directGamePath = "D:\\Programs\\Epic Games\\rocketleague\\Binaries\\Win64\\RocketLeague_EAC.exe"; // FIXME: Hardcoded for now
args = args.Replace(ParseCommand(args)[0], ""); // Removes exe name
args = args.Replace("\"\"", ""); // Removes an extra "" in there
string idealArgs = string.Join(" ", GetIdealArgs(gamePort));
// rlbot args need to be first or the game might ignore them :(
// Rlbot args need to be first or the game might ignore them :(
string modifiedArgs = $"\"{directGamePath}\" {idealArgs} {args}";

// wait for the game to fully close
while (IsRocketLeagueRunning())
Thread.Sleep(500);

// relaunch the game with the new args
// Relaunch the game with the new args
Process epicRocketLeague = new();
epicRocketLeague.StartInfo.FileName = "cmd.exe";
epicRocketLeague.StartInfo.Arguments = $"/c \"{modifiedArgs}\"";

// prevent the game from printing to the console
// Prevent the game from printing to the console
epicRocketLeague.StartInfo.UseShellExecute = false;
epicRocketLeague.StartInfo.RedirectStandardOutput = true;
epicRocketLeague.StartInfo.RedirectStandardError = true;
epicRocketLeague.Start();

Logger.LogInformation($"Starting RocketLeague.exe directly with {idealArgs}");
Logger.LogInformation("Starting RocketLeague with rlbot args: {}", idealArgs);
Logger.LogDebug("Full launch command: {} {}", epicRocketLeague.StartInfo.FileName, epicRocketLeague.StartInfo.Arguments);

// if we don't read the output, the game will hang
// If we don't read the output, the game will hang
new Thread(() =>
{
epicRocketLeague.StandardOutput.ReadToEnd();
Expand Down Expand Up @@ -398,14 +416,14 @@ int gamePort
public static string? GetRocketLeaguePath()
{
// Assumes the game has already been launched
string? args = GetGameArgs(false);
string? args = GetGameArgs();
if (args is null)
return null;

string directGamePath;

#if WINDOWS
directGamePath = ParseCommand(args)[0];
directGamePath = ParseCommand(args)[0]; // FIXME: Doesn't work in Epic after EAC
#else
// On Linux, Rocket League is running under Wine so args is something like
// Z:\home\username\.steam\debian-installation\steamapps\common\rocketleague\Binaries\Win64\RocketLeague.exe-rlbotRLBot_ControllerURL=127.0.0.1:23233RLBot_PacketSendRate=240-nomovie
Expand Down
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