add mod binks, mod rpak loading, and support for non-preload vpks/rpaks

1 files changed, 68 insertions, 9 deletions

diff --git a/NorthstarDedicatedTest/rpakfilesystem.cpp b/NorthstarDedicatedTest/rpakfilesystem.cpp
index 4da22b56..a4c4fada 100644
--- a/NorthstarDedicatedTest/rpakfilesystem.cpp
+++ b/NorthstarDedicatedTest/rpakfilesystem.cpp
@@ -13,29 +13,88 @@ typedef void* (*LoadPakAsyncType)(const char* path, void* unknownSingleton, int
 struct PakLoadFuncs
 {
 	void* unknown[2];
-	LoadPakSyncType func2;
+	LoadPakSyncType LoadPakSync;
 	LoadPakAsyncType LoadPakAsync;
 };
 
 PakLoadFuncs* g_pakLoadApi;
 void** pUnknownPakLoadSingleton;
 
-void LoadPakAsync(const char* path) { g_pakLoadApi->LoadPakAsync(path, *pUnknownPakLoadSingleton, 2, nullptr, nullptr); }
+PakLoadManager* g_PakLoadManager;
+void PakLoadManager::LoadPakSync(const char* path) { g_pakLoadApi->LoadPakSync(path, *pUnknownPakLoadSingleton, 0); }
+void PakLoadManager::LoadPakAsync(const char* path) { g_pakLoadApi->LoadPakAsync(path, *pUnknownPakLoadSingleton, 2, nullptr, nullptr); }
 
-void LoadCommonPaksForMapHook(char* map)
+void HandlePakAliases(char** map)
 {
-	LoadCommonPaksForMap(map);
+	// convert the pak being loaded to it's aliased one, e.g. aliasing mp_hub_timeshift => sp_hub_timeshift
+	for (int64_t i = g_ModManager->m_loadedMods.size() - 1; i > -1; i--)
+	{
+		Mod* mod = &g_ModManager->m_loadedMods[i];
+		if (!mod->Enabled)
+			continue;
 
-	// for sp => mp conversions, load the sp rpaks
-	if (!strcmp(map, "mp_skyway_v1") || !strcmp(map, "mp_crashsite") || !strcmp(map, "mp_hub_timeshift"))
-		map[0] = 's';
+		if (mod->RpakAliases.find(*map) != mod->RpakAliases.end())
+		{
+			*map = &mod->RpakAliases[*map][0];
+			return;
+		}
+	}
+}
+
+bool bShouldPreload = true;
+void LoadPreloadPaks()
+{
+	// disable preloading while we're doing this
+	bShouldPreload = false;
+
+	// note, loading from ./ is necessary otherwise paks will load from gamedir/r2/paks
+	for (Mod& mod : g_ModManager->m_loadedMods)
+	{
+		if (!mod.Enabled)
+			continue;
+
+		// need to get a relative path of mod to mod folder
+		fs::path modPakPath("./" / mod.ModDirectory / "paks");
+
+		for (ModRpakEntry& pak : mod.Rpaks)
+			if (pak.m_bAutoLoad)
+				g_PakLoadManager->LoadPakAsync((modPakPath / pak.m_sPakPath).string().c_str());
+	} 
+
+	bShouldPreload = true;
+}
+
+LoadPakSyncType LoadPakSyncOriginal;
+void* LoadPakSyncHook(char* path, void* unknownSingleton, int flags)
+{ 
+	HandlePakAliases(&path);
+	// note: we don't handle loading any preloaded custom paks synchronously since LoadPakSync is never actually called in retail, just load them async instead
+	LoadPreloadPaks();
+
+	spdlog::info("LoadPakSync {}", path);
+	return LoadPakSyncOriginal(path, unknownSingleton, flags); 
+}
+
+LoadPakAsyncType LoadPakAsyncOriginal;
+void* LoadPakAsyncHook(char* path, void* unknownSingleton, int flags, void* callback0, void* callback1)
+{
+	HandlePakAliases(&path);
+
+	if (bShouldPreload)
+		LoadPreloadPaks();
+
+	spdlog::info("LoadPakAsync {}", path);
+	return LoadPakAsyncOriginal(path, unknownSingleton, flags, callback0, callback1);
 }
 
 void InitialiseEngineRpakFilesystem(HMODULE baseAddress)
 {
-	g_pakLoadApi = (PakLoadFuncs*)((char*)baseAddress + 0x5BED78);
+	g_PakLoadManager = new PakLoadManager;
+
+	g_pakLoadApi = *(PakLoadFuncs**)((char*)baseAddress + 0x5BED78);
 	pUnknownPakLoadSingleton = (void**)((char*)baseAddress + 0x7C5E20);
 
 	HookEnabler hook;
-	ENABLER_CREATEHOOK(hook, (char*)baseAddress + 0x15AD20, &LoadCommonPaksForMapHook, reinterpret_cast<LPVOID*>(&LoadCommonPaksForMap));
+	ENABLER_CREATEHOOK(hook, g_pakLoadApi->LoadPakSync, &LoadPakSyncHook, reinterpret_cast<LPVOID*>(&LoadPakSyncOriginal));
+	ENABLER_CREATEHOOK(hook, g_pakLoadApi->LoadPakAsync, &LoadPakAsyncHook, reinterpret_cast<LPVOID*>(&LoadPakAsyncOriginal));
 }
\ No newline at end of file