campaignid only for non official missions

src/Misc/SavedGamesInSubdir.cpp

@@ -22,7 +22,11 @@
 #include <Utilities/Macro.h>
 #include <Spawner/Spawner.h>
 
+#include <HouseClass.h>
+#include <AnimClass.h>
+
 #include <filesystem>
+#include <optional>
 
 namespace SavedGames
 {
@@ -161,3 +165,151 @@ DEFINE_HOOK(0x67FD26, LoadOptionsClass_ReadSaveInfo_SGInSubdir, 0x5)
 
 	return 0;
 }
+
+
+namespace SavedGames
+{
+	//issue #18
+	struct CampaignID
+	{
+		static constexpr wchar_t* SaveName = L"Campaign ID";
+
+		int Number;
+		explicit CampaignID() :
+			Number { SessionClass::IsCampaign() ? Spawner::GetConfig()->CampaignID :  0 }
+		{
+		}
+
+		operator int () const
+		{
+			return Number;
+		}
+
+		CampaignID(noinit_t()) { }
+	};
+
+	// More fun
+	struct ExtraMetaInfo
+	{
+		static constexpr wchar_t* SaveName = L"Spawner extra info";
+
+		int CurrentFrame;
+		int PlayerCount;
+		int TechnoCount;
+		int AnimCount;
+
+		explicit ExtraMetaInfo()
+			:CurrentFrame { Unsorted::CurrentFrame }
+			, PlayerCount { HouseClass::Array->Count }
+			, TechnoCount { TechnoClass::Array->Count }
+			, AnimCount { AnimClass::Array->Count }
+		{
+		}
+
+		ExtraMetaInfo(noinit_t()) { }
+	};
+
+	template<typename T>
+	bool AppendToStorage(IStorage* pStorage)
+	{
+		IStream* pStream = nullptr;
+		bool ret = false;
+		HRESULT hr = pStorage->CreateStream(
+			T::SaveName,
+			STGM_WRITE | STGM_CREATE | STGM_SHARE_EXCLUSIVE,
+			0,
+			0,
+			&pStream
+		);
+
+		if (SUCCEEDED(hr) && pStream != nullptr)
+		{
+			T info {};
+			ULONG written = 0;
+			hr = pStream->Write(&info, sizeof(info), &written);
+			ret = SUCCEEDED(hr) && written == sizeof(info);
+			pStream->Release();
+		}
+
+		return ret;
+	}
+
+
+	template<typename T>
+	std::optional<T> ReadFromStorage(IStorage* pStorage)
+	{
+		IStream* pStream = nullptr;
+		bool hasValue = false;
+		HRESULT hr = pStorage->OpenStream(
+			T::SaveName,
+			NULL,
+			STGM_READ | STGM_SHARE_EXCLUSIVE,
+			0,
+			&pStream
+		);
+
+		T info;
+
+		if (SUCCEEDED(hr) && pStream != nullptr)
+		{
+			ULONG read = 0;
+			hr = pStream->Read(&info, sizeof(info), &read);
+			hasValue = SUCCEEDED(hr) && read == sizeof(info);
+
+			pStream->Release();
+		}
+
+		return hasValue ? std::make_optional(info) : std::nullopt;
+	}
+
+}
+
+// Write : A la fin
+DEFINE_HOOK(0x67D2E3, GameSave_AdditionalInfoForClient, 0x6)
+{
+	GET_STACK(IStorage*, pStorage, STACK_OFFSET(0x4A0, -0x490));
+	using namespace SavedGames;
+
+	if (pStorage)
+	{
+		if (CampaignID {} != 0)
+			AppendToStorage<CampaignID>(pStorage);
+		if (AppendToStorage<ExtraMetaInfo>(pStorage))
+			Debug::Log("[Spawner] Extra meta info appended on sav file\n");
+	}
+
+	return 0;
+}
+
+// Read : Au debut
+DEFINE_HOOK(0x67E4DC, LoadGame_AdditionalInfoForClient, 0x7)
+{
+	LEA_STACK(const wchar_t*, filename, STACK_OFFSET(0x518, -0x4F4));
+	IStorage* pStorage = nullptr;
+	using namespace SavedGames;
+
+	if (SUCCEEDED(StgOpenStorage(filename,NULL,
+			STGM_READWRITE | STGM_SHARE_EXCLUSIVE,
+			0,0,&pStorage)
+	))
+	{
+		if (auto id = ReadFromStorage<CampaignID>(pStorage))
+		{
+			int num = id.value().Number;
+			Debug::Log("[Spawner] sav file CampaignID = %d\n", num);
+			Spawner::GetConfig()->CampaignID = num;
+		}
+		if (auto info = ReadFromStorage<ExtraMetaInfo>(pStorage))
+		{
+			Debug::Log("[Spawner] CurrentFrame = %d, TechnoCount = %d, AnimCount = %d \n"
+				, info.value().CurrentFrame
+				, info.value().TechnoCount
+				, info.value().AnimCount
+			);
+		}
+	}
+	if (pStorage)
+		pStorage->Release();
+
+	return 0;
+}

src/Spawner/Spawner.Config.cpp

@@ -55,6 +55,7 @@ void SpawnerConfig::LoadFromINIFile(CCINIClass* pINI)
 	LoadSaveGame     = pINI->ReadBool(pSettingsSection, "LoadSaveGame", LoadSaveGame);
 	/* SavedGameDir */ pINI->ReadString(pSettingsSection, "SavedGameDir", SavedGameDir, SavedGameDir, sizeof(SavedGameDir));
 	/* SaveGameName */ pINI->ReadString(pSettingsSection, "SaveGameName", SaveGameName, SaveGameName, sizeof(SaveGameName));
+	CampaignID       = pINI->ReadInteger(pSettingsSection, "CampaignID", 0);
 
 	{ // Scenario Options
 		Seed             = pINI->ReadInteger(pSettingsSection, "Seed", Seed);

src/Spawner/Spawner.Config.h

@@ -94,6 +94,7 @@ class SpawnerConfig
 	bool LoadSaveGame;
 	char SavedGameDir[MAX_PATH]; // Nested paths are also supported, e.g. "Saved Games\\Yuri's Revenge"
 	char SaveGameName[60];
+	int CampaignID;
 
 	// Scenario Options
 	int  Seed;
@@ -161,6 +162,7 @@ class SpawnerConfig
 		, LoadSaveGame { false }
 		, SavedGameDir { "Saved Games" }
 		, SaveGameName { "" }
+		, CampaignID { 0 }
 
 		// Scenario Options
 		, Seed { 0 }