Prepare field access

src/game/game.cpp

@@ -70,12 +70,39 @@ namespace game
 			}
 		}
 
+		__declspec(naked) VariableValue get_entity_field_value_dedicated(unsigned int classnum, int entnum, int _offset)
+		{
+			__asm
+			{
+				push _offset
+				push entnum
+				mov ecx, classnum
+				mov eax, 4F1400h
+				call eax
+				add esp, 8h
+				retn
+			}
+		}
+
+		VariableValue GetEntityFieldValue(const unsigned int classnum, const int entnum, const int offset)
+		{
+			if (is_dedi())
+			{
+				return get_entity_field_value_dedicated(classnum, entnum, offset);
+			}
+			else
+			{
+				return reinterpret_cast<VariableValue(*)(unsigned int, int, int)> //
+					(SELECT_VALUE(0x530E30, 0x56AF20, 0x0))(classnum, entnum, offset);
+			}
+		}
+
 		void* MT_Alloc(const int numBytes, const int type)
 		{
 			return scrMemTreeGlob + 12 * size_t(MT_AllocIndex(numBytes, type));
 		}
 
-		const float* Scr_AllocVector(const float *v)
+		const float* Scr_AllocVector(const float* v)
 		{
 			const auto mem = static_cast<DWORD*>(MT_Alloc(16, 2));
 			*mem = 0;

src/game/game.hpp

@@ -65,6 +65,8 @@ namespace game
 
 		void AddRefToValue(VariableValue* value);
 
+		VariableValue GetEntityFieldValue(unsigned int classnum, int entnum, int offset);
+
 		void* MT_Alloc(int numBytes, int type);
 
 		const float* Scr_AllocVector(const float* v);

src/module/scripting.cpp

@@ -411,6 +411,22 @@ void scripting::stop_execution()
 	}
 }
 
+int scripting::get_field_id(const int classnum, const std::string& field) const
+{
+	switch (classnum)
+	{
+	case 0: // Entity
+	case 1: // HudElem
+	case 2: // Pathnode
+	case 3: // VehPathNode
+	case 4: // VehTrackSegment
+	case 6: // PIPElem
+
+	default:
+		return -1;
+	}
+}
+
 void scripting::notify(const std::string& event, const unsigned int entity_id,
                        std::vector<chaiscript::Boxed_Value> arguments)
 {

src/module/scripting.hpp

@@ -82,6 +82,8 @@ private:
 	static void start_execution();
 	static void stop_execution();
 
+	int get_field_id(int classnum, const std::string& field) const;
+
 	void notify(const std::string& event, unsigned int entity_id, std::vector<chaiscript::Boxed_Value> arguments);
 
 	void push_param(const chaiscript::Boxed_Value& value) const;