tfe_02_game_data_detection.patch

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 919dd4c5..eb855704 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -14,7 +14,7 @@ project(TheForceEngine
 	DESCRIPTION "Modern 'Jedi Engine' replacement supporting Dark Forces, mods, and in the future Outlaws."
 	)
 
-set(CMAKE_CXX_STANDARD 14)
+set(CMAKE_CXX_STANDARD 17)
 set(CMAKE_CXX_STANDARD_REQUIRED ON)
 set(CMAKE_CXX_EXTENSIONS OFF)
 
diff --git a/TheForceEngine/TFE_Settings/settings.cpp b/TheForceEngine/TFE_Settings/settings.cpp
index fa495dd0..e7ef42aa 100644
--- a/TheForceEngine/TFE_Settings/settings.cpp
+++ b/TheForceEngine/TFE_Settings/settings.cpp
@@ -10,6 +10,8 @@
 #include <TFE_A11y/accessibility.h>
 #include <assert.h>
 #include <algorithm>
+#include <filesystem>
+#include <array>
 #include <vector>
 
 #ifdef _WIN32
@@ -157,96 +159,21 @@ namespace TFE_Settings
 	{
 		for (u32 gameId = 0; gameId < Game_Count; gameId++)
 		{
-			const size_t sourcePathLen = strlen(s_gameSettings.header[gameId].sourcePath);
-			bool pathValid = sourcePathLen && validatePath(s_gameSettings.header[gameId].sourcePath, c_validationFile[gameId]);
-
-			// First check locally, and then check the registry.
-			if (!pathValid && gameId == Game_Dark_Forces)	// Only Dark Forces for now.
-			{
-				// First try the local path.
-				char localPath[TFE_MAX_PATH];
-				TFE_Paths::appendPath(PATH_PROGRAM, "DARK.GOB", localPath);
-
-				FileStream file;
-				if (file.open(localPath, Stream::MODE_READ))
-				{
-					if (file.getSize() > 1)
-					{
-						strcpy(s_gameSettings.header[gameId].sourcePath, TFE_Paths::getPath(PATH_PROGRAM));
-						FileUtil::fixupPath(s_gameSettings.header[gameId].sourcePath);
-						pathValid = true;
-					}
-					file.close();
-				}
-
-				// Then try local/Games/Dark Forces/
-				if (!pathValid)
-				{
-					char gamePath[TFE_MAX_PATH];
-					sprintf(gamePath, "%sGames/Dark Forces/", TFE_Paths::getPath(PATH_PROGRAM));
-					FileUtil::fixupPath(gamePath);
-
-					sprintf(localPath, "%sDARK.GOB", gamePath);
-					if (file.open(localPath, Stream::MODE_READ))
-					{
-						if (file.getSize() > 1)
-						{
-							strcpy(s_gameSettings.header[gameId].sourcePath, gamePath);
-							pathValid = true;
-						}
-						file.close();
-					}
-				}
-			}
-
-#ifdef _WIN32
-			// Next try looking through the registry.
-			if (!pathValid)
-			{
-				// Remaster - search here first so that new assets are readily available.
-				pathValid = WindowsRegistry::getSteamPathFromRegistry(c_steamRemasterProductId[gameId], c_steamRemasterLocalPath[gameId], c_steamRemasterLocalSubPath[gameId], c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-				// Remaster on GOG.
-				if (!pathValid)
-				{
-					pathValid = WindowsRegistry::getGogPathFromRegistry(c_gogRemasterProductId[gameId], c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-				}
-
-				// Then try the vanilla version on Steam.
-				if (!pathValid)
-				{
-					pathValid = WindowsRegistry::getSteamPathFromRegistry(c_steamProductId[gameId], c_steamLocalPath[gameId], c_steamLocalSubPath[gameId], c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-				}
-				// And the vanilla version on GOG.
-				if (!pathValid)
-				{
-					pathValid = WindowsRegistry::getGogPathFromRegistry(c_gogProductId[gameId], c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-				}
-			}
-#endif
-#ifdef __linux__
-			if (!pathValid)
-			{
-				pathValid = LinuxSteam::getSteamPath(c_steamRemasterProductId[gameId], c_steamRemasterLocalPath[gameId],
-					c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-
-				if (!pathValid)
-				{
-					pathValid = LinuxSteam::getSteamPath(c_steamProductId[gameId], c_steamLocalSubPath[gameId],
-						c_validationFile[gameId], s_gameSettings.header[gameId].sourcePath);
-				}
-			}
-#endif
-			// If the registry approach fails, just try looking in the various hardcoded paths.
-			if (!pathValid)
+			std::array<std::string, 4> locations = {
+				std::getenv("XDG_DATA_HOME"),
+				".steam/steam/steamapps/common/Dark Forces/Game",
+				".var/app/com.valvesoftware.Steam/.local/share/Steam/steamapps/common/Dark Forces/Game",
+				"snap/steam/common/.local/share/Steam/steamapps/common/Dark Forces/Game"
+			};
+			for (const auto& loc : locations)
 			{
-				// Try various possible locations.
-				const char* const * locations = c_gameLocations[gameId];
-				for (u32 i = 0; i < c_hardcodedPathCount[gameId]; i++)
-				{
-					if (FileUtil::directoryExits(locations[i]))
-					{
-						strcpy(s_gameSettings.header[gameId].sourcePath, locations[i]);
-						pathValid = true;
+				std::filesystem::path checkPath = std::filesystem::path(std::getenv("HOME"));
+				checkPath /= loc;
+				if (! std::filesystem::exists(checkPath)) { continue; }
+				for (auto const& dir_entry : std::filesystem::directory_iterator{checkPath}) {
+					if (strcasecmp(const_cast<char*>(dir_entry.path().filename().c_str()), "dark.gob") == 0) {
+						TFE_System::logWrite(LOG_MSG, "Main", const_cast<char*>(checkPath.c_str()));
+						strcpy(s_gameSettings.header[gameId].sourcePath, const_cast<char*>((std::string(checkPath) + "/").c_str()));
 						break;
 					}
 				}