Native invoker (#11)

* feat(invoker): add an invoker

* feat(debug): add entrypoint dumper

* finishing touches

---------

Co-authored-by: maybegreat48 <email@hostname>

CMakeLists.txt

@@ -7,6 +7,7 @@ include(cmake/async-logger.cmake)
 include(cmake/imgui.cmake)
 include(cmake/json.cmake)
 include(cmake/minhook.cmake)
+include(cmake/rdr-classes.cmake)
 
 # source
 set(SRC_DIR "${PROJECT_SOURCE_DIR}/src")
@@ -25,7 +26,7 @@ target_include_directories(${PROJECT_NAME} PRIVATE
     "${SRC_DIR}"
     "${imgui_SOURCE_DIR}"
     "${minhook_SOURCE_DIR}/include"    
-    "${gtav_classes_SOURCE_DIR}"
+    "${rdr_classes_SOURCE_DIR}"
 )
 
 message(STATUS "Setting up linked libraries")

cmake/rdr-classes.cmake

@@ -0,0 +1,14 @@
+include(FetchContent)
+
+FetchContent_Declare(
+    rdr_classes
+    GIT_REPOSITORY https://github.com/YimMenu/RDR-Classes.git
+    GIT_TAG        a2a74e151a1ade7683be07e966b47aaa00a28848
+    GIT_PROGRESS TRUE
+    CONFIGURE_COMMAND ""
+    BUILD_COMMAND ""
+)
+message("RDR-Classes")
+if(NOT rdr_classes_POPULATED)
+    FetchContent_Populate(rdr_classes)
+endif()

src/core/renderer/Renderer.cpp

@@ -85,7 +85,7 @@ namespace YimMenu
 			return false;
 		}
 
-		m_FrameContext.reserve(m_SwapChainDesc.BufferCount);
+		m_FrameContext.resize(m_SwapChainDesc.BufferCount);
 
 		D3D12_DESCRIPTOR_HEAP_DESC DescriptorDesc{ D3D12_DESCRIPTOR_HEAP_TYPE_CBV_SRV_UAV, m_SwapChainDesc.BufferCount, D3D12_DESCRIPTOR_HEAP_FLAG_SHADER_VISIBLE };
 		if (const auto result = m_Device->CreateDescriptorHeap(&DescriptorDesc, __uuidof(ID3D12DescriptorHeap), (void**)m_DescriptorHeap.GetAddressOf()); result < 0)
@@ -102,7 +102,7 @@ namespace YimMenu
 			return false;
 		}
 
-		for (size_t i{}; i != m_SwapChainDesc.BufferCount; ++i)
+		for (size_t i{}; i < m_SwapChainDesc.BufferCount; ++i)
 		{
 			m_FrameContext[i].CommandAllocator = m_CommandAllocator.Get();
 		}

src/game/frontend/menu/Menu.cpp

@@ -1,5 +1,11 @@
 #include "Menu.hpp"
 
+#include "core/memory/ModuleMgr.hpp"
+#include "game/pointers/Pointers.hpp"
+#include "util/Joaat.hpp"
+#include "game/rdr/natives.hpp"
+#include "core/filemgr/FileMgr.hpp"
+
 namespace YimMenu
 {
 	void Menu::Main()
@@ -9,6 +15,36 @@ namespace YimMenu
 
 		if (ImGui::Begin("Test"))
 		{
+			if (ImGui::Button("Suicide"))
+			{
+				auto player_ped = PLAYER::PLAYER_PED_ID();
+				ENTITY::SET_ENTITY_HEALTH(player_ped, 0, 0);
+			}
+
+			if (ImGui::Button("Get Coords"))
+			{ 
+				auto coords = ENTITY::GET_ENTITY_COORDS(PLAYER::PLAYER_PED_ID(), false, false);
+
+				LOG(INFO) << coords.x << "x\t" << coords.y << "y\t" << coords.z << "z";
+			}
+
+			if (ImGui::Button("Dump Entrypoints"))
+			{
+				DWORD64 base_address = (DWORD64)GetModuleHandleA(0);
+
+				const auto file_path = FileMgr::GetProjectFile("./entrypoints.txt");
+				auto file            = std::ofstream(file_path.Path(), std::ios::out | std::ios::trunc);
+
+				for (auto& entry : g_Crossmap)
+				{
+					auto address = Pointers.GetNativeHandler(entry);
+
+					file << std::hex << std::uppercase << "0x" << entry << " : RDR2.exe + 0x" << (DWORD64)address - base_address << std::endl;
+				}
+
+				file.close();
+			}
+
 			if (ImGui::Button("Unload"))
 				g_Running = false;
 		}

src/game/pointers/Pointers.cpp

@@ -12,7 +12,7 @@ namespace YimMenu
 		const auto rdr2 = ModuleMgr.Get("RDR2.exe"_J);
 		if (!rdr2)
 		{
-			LOG(FATAL) << "Could not find " << rdr2->Name() << ", is this RDR2?";
+			LOG(FATAL) << "Could not find RDR2.exe, is this RDR2?";
 
 			return false;
 		}
@@ -39,6 +39,16 @@ namespace YimMenu
 			WndProc = ptr.As<PVOID>();
 		});
 
+		constexpr auto getNativeHandlerPtrn = Pattern<"E8 ? ? ? ? 42 8B 9C FE">("GetNativeHandler");
+		scanner.Add(getNativeHandlerPtrn, [this](PointerCalculator ptr) {
+			GetNativeHandler = ptr.Add(1).Rip().As<Functions::GetNativeHandler>();
+		});
+
+		constexpr auto fixVectorsPtrn = Pattern<"8B 41 18 4C 8B C1 85">("FixVectors");
+		scanner.Add(fixVectorsPtrn, [this](PointerCalculator ptr) {
+			FixVectors = ptr.As<Functions::FixVectors>();
+		});
+
 		if (!scanner.Scan())
 		{
 			LOG(FATAL) << "Some patterns could not be found, unloading.";

src/game/pointers/Pointers.hpp

@@ -3,12 +3,15 @@
 #include <dxgi1_4.h>
 #include <d3d12.h>
 #include "game/rdr/RenderingInfo.hpp"
+#include <script/scrNativeHandler.hpp>
 
 namespace YimMenu
 {
 	namespace Functions
 	{
 		using GetRendererInfo = RenderingInfo*(*)();
+		using GetNativeHandler = rage::scrNativeHandler (*)(rage::scrNativeHash hash);
+		using FixVectors       = void (*)(rage::scrNativeCallContext* call_ctx);
 	}
 
 	struct PointerData
@@ -20,6 +23,8 @@ namespace YimMenu
 		std::int64_t** ScriptGlobals;
 		void* NativeRegistrationTable;
 		PVOID WndProc;
+		Functions::GetNativeHandler GetNativeHandler;
+		Functions::FixVectors FixVectors;
 	};
 
 	struct Pointers : PointerData