Lesson 55 - Dedicated Servers Game Mode

2026-03-15 08:53:18 -04:00
parent 3e61d4cec0
commit 2ec989d34a
14 changed files with 93 additions and 114 deletions
--- a/Source/DedicatedServers/Private/GameLift/GameLiftClp.cpp
+++ b/Source/DedicatedServers/Private/GameLift/GameLiftClp.cpp
@@ -0,0 +1,100 @@
+#include "GameLift/GameLiftClp.h"
+
+FPortResult cmdlineparser::GetConfiguredOrDefaultPort(const FString& Token)
+{
+	return details::GetConfiguredOrDefaultPort(FCommandLine::Get(), Token);
+}
+
+FPortResult cmdlineparser::GetConfiguredOrDefaultPort(const FString& CommandLine, const FString& Token)
+{
+	return details::GetConfiguredOrDefaultPort(CommandLine, Token);
+}
+
+cmdlineparser::details::FParseResult cmdlineparser::GetValueOfToken(const FString& CommandLine, const details::EAvailableTokens Token)
+{
+	details::FParseResult Result;
+	FString ValueOfToken;
+	Result.Token = Token;
+	
+	ensure(Token != details::EAvailableTokens::Unknown);
+	ensure(Token < details::EAvailableTokens::MaxToken);
+	const bool bTokenFound = FParse::Value(
+		*CommandLine, 
+		*details::EnsureEndsWith(details::CLI_TOKENS[static_cast<int32>(Token)], 
+		TEXT("=")), 
+		ValueOfToken
+		);
+	
+	if (!bTokenFound)
+	{
+		Result.Value = FString();
+		Result.ErrorCode = details::EErrorCodes::TokenNotFound;
+		Result.bIsValid = false;
+	}
+	else
+	{
+		if (ValueOfToken.IsEmpty())
+		{
+			Result.Value = FString();
+			Result.ErrorCode = details::EErrorCodes::ValueEmpty;
+			Result.bIsValid = false;
+		}
+		else
+		{
+			if (details::DoesRegExMatch(ValueOfToken, details::REGEX_PATTERNS[static_cast<int32>(Token)]))
+			{
+				Result.ErrorCode = details::EErrorCodes::NoError;
+            	Result.bIsValid = true;	
+			}
+			else
+			{
+				Result.ErrorCode = details::EErrorCodes::FailedValidation;
+				Result.bIsValid = false;
+			}
+			Result.Value = ValueOfToken;
+		}
+	}
+	
+	ensure(Result.ErrorCode < details::EErrorCodes::MaxCode);
+	FString ErrorMessage = details::ERROR_MESSAGES[static_cast<int32>(Result.ErrorCode)];
+	FString TokenName = details::CLI_TOKENS[static_cast<int32>(Result.Token)];
+	FString Value = Result.Value;
+	Result.ErrorMessage = ErrorMessage;
+	
+	return Result;
+}
+
+
+//  cmdlineparser::Details namespace
+
+FString cmdlineparser::details::EnsureEndsWith(const FString& Token, const TCHAR* Suffix)
+{
+	return Token.EndsWith(Suffix) ? Token : Token + Suffix;
+}
+
+FPortResult cmdlineparser::details::GetConfiguredOrDefaultPort(const FString& CommandLine, const FString& Token)
+{
+	FPortResult PortResult;
+	PortResult.Port = FURL::UrlConfig.DefaultPort;
+
+	if (int32 CliPort; FParse::Value(*CommandLine, *EnsureEndsWith(Token, TEXT("=")), CliPort))
+	{
+		if (CliPort >= details::MIN_PORT && CliPort <= details::MAX_PORT)
+		{
+			PortResult.Port = CliPort;
+			PortResult.bUsedDefaultPort = false;
+			PortResult.WarningMessage = FString();
+			return PortResult;
+		}
+	}
+	PortResult.bUsedDefaultPort = true;
+	PortResult.WarningMessage = FString("Command Line Option for Port is out of ranged...  Using Default Port %s", PortResult.Port);
+	return PortResult;
+}
+
+bool cmdlineparser::details::DoesRegExMatch(const FString& Text, const FString& Pattern)
+{
+	const FRegexPattern RegexPattern(Pattern);
+	FRegexMatcher Matcher(RegexPattern, Text);
+	return Matcher.FindNext();
+}