Add engineStreamingGetUsedMemory (PR #2269)

Author: Pirulax

Client/game_sa/CStreamingSA.cpp

@@ -152,3 +152,8 @@ void CStreamingSA::ReinitStreaming()
 
     reinitStreaming();
 }
+
+std::uint32_t CStreamingSA::GetMemoryUsed() const
+{
+    return *reinterpret_cast<std::uint32_t*>(0x8E4CB4);
+}

Client/game_sa/CStreamingSA.h

@@ -29,6 +29,7 @@ class CStreamingSA : public CStreaming
     void RequestSpecialModel(DWORD model, const char* szTexture, DWORD channel);
     void ReinitStreaming();
     CStreamingInfo* GetStreamingInfoFromModelId(uint32 id);
+    std::uint32_t GetMemoryUsed() const override;
 
 private:
     static CStreamingInfo* ms_aInfoForModel; // count: 26316 in unmodified game

Client/mods/deathmatch/logic/luadefs/CLuaEngineDefs.cpp

@@ -12,6 +12,11 @@
 #include "StdInc.h"
 #include <lua/CLuaFunctionParser.h>
 
+std::uint32_t EngineStreamingGetUsedMemory()
+{
+    return g_pGame->GetStreaming()->GetMemoryUsed();
+}
+
 void CLuaEngineDefs::LoadFunctions()
 {
     constexpr static const std::pair<const char*, lua_CFunction> functions[]{
@@ -52,6 +57,8 @@ void CLuaEngineDefs::LoadFunctions()
         {"engineRestoreObjectGroupPhysicalProperties", EngineRestoreObjectGroupPhysicalProperties},
         {"engineRestreamWorld", ArgumentParser<EngineRestreamWorld>},
 
+        {"engineStreamingGetUsedMemory", ArgumentParser<EngineStreamingGetUsedMemory>},
+
         // CLuaCFunctions::AddFunction ( "engineReplaceMatchingAtomics", EngineReplaceMatchingAtomics );
         // CLuaCFunctions::AddFunction ( "engineReplaceWheelAtomics", EngineReplaceWheelAtomics );
         // CLuaCFunctions::AddFunction ( "enginePositionAtomic", EnginePositionAtomic );

Client/sdk/game/CStreaming.h

@@ -48,4 +48,5 @@ class CStreaming
     virtual void RequestSpecialModel(DWORD model, const char* szTexture, DWORD channel) = 0;
     virtual CStreamingInfo* GetStreamingInfoFromModelId(uint32 id) = 0;
     virtual void ReinitStreaming() = 0;
+    virtual std::uint32_t GetMemoryUsed() const = 0;
 };