setup for rpak filesystem hooks

1 files changed, 44 insertions, 0 deletions

diff --git a/NorthstarDedicatedTest/rpakfilesystem.cpp b/NorthstarDedicatedTest/rpakfilesystem.cpp
new file mode 100644
index 00000000..006a57c5
--- /dev/null
+++ b/NorthstarDedicatedTest/rpakfilesystem.cpp
@@ -0,0 +1,44 @@
+#include "pch.h"
+#include "rpakfilesystem.h"
+#include "hookutils.h"
+#include "modmanager.h"
+
+typedef void*(*LoadCommonPaksForMapType)(char* map);
+LoadCommonPaksForMapType LoadCommonPaksForMap;
+
+typedef void*(*LoadPakSyncType)(char* path, void* unknownSingleton, int flags);
+typedef void*(*LoadPakAsyncType)(char* path, void* unknownSingleton, int flags, void* callback0, void* callback1);
+
+// there are more i'm just too lazy to add
+struct PakLoadFuncs
+{
+	void* unknown[2];
+	LoadPakSyncType func2;
+	LoadPakAsyncType LoadPakAsync;
+};
+
+PakLoadFuncs* g_pakLoadApi;
+void** pUnknownPakLoadSingleton;
+
+void LoadPakAsync(char* path)
+{
+	g_pakLoadApi->LoadPakAsync(path, *pUnknownPakLoadSingleton, 2, nullptr, nullptr);
+}
+
+void LoadCommonPaksForMapHook(char* map)
+{
+	LoadCommonPaksForMap(map);
+
+	// 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';
+}
+
+void InitialiseEngineRpakFilesystem(HMODULE baseAddress)
+{
+	g_pakLoadApi = (PakLoadFuncs*)((char*)baseAddress + 0x5BED78);
+	pUnknownPakLoadSingleton = (void**)((char*)baseAddress + 0x7C5E20);
+
+	HookEnabler hook;
+	ENABLER_CREATEHOOK(hook, (char*)baseAddress + 0x15AD20, &LoadCommonPaksForMapHook, reinterpret_cast<LPVOID*>(&LoadCommonPaksForMap));
+}
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