DedicatedServerCourse/Source/FPSTemplate/Private/Game/ShooterGameMode.cpp

// Fill out your copyright notice in the Description page of Project Settings.


#include "Game/ShooterGameMode.h"
#include "Logging/LogMacros.h"

#if WITH_GAMELIFT
#include "GameLiftServerSDK.h"
#endif

DEFINE_LOG_CATEGORY(LogShooterGameMode)

AShooterGameMode::AShooterGameMode()
{
	UE_LOG(LogShooterGameMode, Log, TEXT("Initializing ShooterGameMode..."));
}

void AShooterGameMode::BeginPlay()
{
	Super::BeginPlay();
	
#if WITH_GAMELIFT
//	InitGameLift();
#endif
}

void AShooterGameMode::InitGame(const FString& MapName, const FString& Options, FString& ErrorMessage)
{
	Super::InitGame(MapName, Options, ErrorMessage);
	CachedCommandLine = FCommandLine::Get();
	bool bIsCriticalError = false;
	
	//  Parsing of Command Line
	bDebugMode = FParse::Param(*CachedCommandLine, TEXT("Debug"));
	
	if (bDebugMode)
	{
		UE_LOG(LogShooterGameMode, Log, TEXT("Debug mode: ENABLED"));
		UE_LOG(LogShooterGameMode, Log, TEXT("Command Line Arguments: %s"), *CachedCommandLine);
	}
	
	ServerPort = GetConfiguredOrDefaultPort();
	
	bIsAnywhereFleet = FParse::Param(*CachedCommandLine, TEXT("glAnywhere"));
	if (bIsAnywhereFleet)
	{
		UE_LOG(LogShooterGameMode, Log, TEXT("GameLift Anywhere Fleet Command Line Parsing"));
		UE_LOG(LogShooterGameMode, Log, TEXT("======Command Line Parameters======"));
		
		if (!FParse::Value(*CachedCommandLine, TEXT("fleetID="), FleetId))
		{
			UE_LOG(LogShooterGameMode, Error, TEXT(">>>FleetId Missing in Command Line"));
			bIsCriticalError = true;
		}
		else
		{
			UE_LOG(LogShooterGameMode, Log, TEXT(">>>Fleet ID: %s"), *FleetId);
		}
		
		if (!FParse::Value(*CachedCommandLine, TEXT("authtoken="), AuthToken))
		{
			UE_LOG(LogShooterGameMode, Error, TEXT(">>>AuthToken Missing in Command Line"));
			bIsCriticalError = true;
		}
		else
		{
			if (bDebugMode)
			{
				UE_LOG(LogShooterGameMode, Log, TEXT(">>>AuthToken: %s"), *AuthToken);
			}
			else
			{
				UE_LOG(LogShooterGameMode, Log, TEXT(">>>AuthToken Length: %d"), AuthToken.Len());
			}
		}
		if (!FParse::Value(*CachedCommandLine, TEXT("hostId="), HostId))
		{
			UE_LOG(LogShooterGameMode, Error, TEXT(">>>HostId Missing in Command Line"));
			bIsCriticalError = true;
		}
		{
			UE_LOG(LogShooterGameMode, Log, TEXT(">>>Host ID: %s"), *HostId);
		}
		if (!FParse::Value(*CachedCommandLine, TEXT("websocketUrl="), WebSocketUrl))
		{
			UE_LOG(LogShooterGameMode, Error, TEXT(">>>WebSocketUrl Missing in Command Line"));
			bIsCriticalError = true;
		}
		else
		{
			UE_LOG(LogShooterGameMode, Log, TEXT(">>>Websocket URL: %s"), *WebSocketUrl);
		}
		if (ServerPort == 0)
		{
			UE_LOG(LogShooterGameMode, Error, TEXT("Invalid or Missing Server Port Number."));
			bIsCriticalError = true;
		}
		if (!FParse::Value(*CachedCommandLine, TEXT("serverRegion="), ServerRegion))
		{
			UE_LOG(LogShooterGameMode, Error, TEXT(">>>ServerRegion Missing in Command Line"));
		}
		else
		{
			UE_LOG(LogShooterGameMode, Log, TEXT(">>>Server Region: %s"), *ServerRegion);
		}
		
		UE_LOG(LogShooterGameMode, Log, TEXT("==================================="));
	}
	else
	{
		UE_LOG(LogShooterGameMode, Log, TEXT("GameLift EC2 Fleet"));
		if (ServerPort == 0)
		{
			UE_LOG(LogShooterGameMode, Error, TEXT("Invalid or Missing Server Port Number. Shutting Down."));
			bIsCriticalError = true;
		}
	}
	
	if (bIsCriticalError)
	{
		UE_LOG(LogShooterGameMode, Error, TEXT("Critical Missing or Invalid Arguments in Command Line.   Shutting Down."));
		FPlatformMisc::RequestExit(true);
	}
	else
	{
		UE_LOG(LogShooterGameMode, Log, TEXT("Command Line Parsed Successfully."));
	}
	
	
}

int32 AShooterGameMode::GetConfiguredOrDefaultPort() const
{
	//  Default Unreal Engine listen/dedicated server port
	int32 Port = 7777;
	
	//  Check if a port was passed via command line: -port=xxxx
	int32 CmdPort = 0;
	if (FParse::Value(*CachedCommandLine, TEXT("port="), CmdPort))
	{
		if (CmdPort > 0 && CmdPort <= 65535)
		{
			Port = CmdPort;
		}
		else
		{
			Port = 0;
		}
	}
	return Port;
}