Add wireframe for TR8

Author: TheIndra55

src/Hook.cpp

@@ -139,10 +139,10 @@ void Hook::RegisterModules()
 	RegisterModule<FreeCamera>();
 	RegisterModule<Draw>();
 	RegisterModule<Frontend>();
+	RegisterModule<Render>();
 
 #ifndef TR8
 	RegisterModule<LevelModule>();
-	RegisterModule<Render>();
 	RegisterModule<Debug>();
 #else
 	RegisterModule<ScriptLog>();

src/cdc/render/PCStateManager.cpp

@@ -0,0 +1,8 @@
+#include "PCStateManager.h"
+
+#include "util/Hooking.h"
+
+void cdc::PCStateManager::SetRenderState(D3DRENDERSTATETYPE state, unsigned int value)
+{
+	Hooking::ThisCall(0x502B70, this, state, value);
+}

src/cdc/render/PCStateManager.h

@@ -0,0 +1,16 @@
+#pragma once
+
+#include <d3d9.h>
+
+#include "PCInternalResource.h"
+
+namespace cdc
+{
+	class PCStateManager : public PCInternalResource
+	{
+	public:
+		IDirect3DDevice9* m_pD3DDevice;
+
+		void SetRenderState(D3DRENDERSTATETYPE state, unsigned int value);
+	};
+}

src/cdc/script/ScriptObject.cpp

@@ -4,5 +4,5 @@
 
 void cdc::ScriptObject::CallFunction(Function* function, int numArgs, void* args, void* retVal)
 {
-	return Hooking::ThisCall(0x57B380, this, function, numArgs, args, retVal);
+	Hooking::ThisCall(0x57B380, this, function, numArgs, args, retVal);
 }

src/modules/Render.cpp

@@ -4,6 +4,10 @@
 #include "Render.h"
 #include "util/Hooking.h"
 
+#include "cdc/render/PCDeviceManager.h"
+#include "cdc/render/PCStateManager.h"
+
+#ifndef TR8
 static bool s_terrainWireframe = false;
 
 // Code for terrain wireframe
@@ -27,21 +31,52 @@ static TerrainDrawable* __fastcall TerrainDrawable_TerrainDrawable(TerrainDrawab
 
 	return ret;
 }
+#else
+static bool s_wireframe = false;
+
+static void(__thiscall* s_PCScene_Draw)(int, int, int);
+
+static void __fastcall PCScene_Draw(int a1, void*, int a2, int a3)
+{
+	auto device = cdc::PCDeviceManager::GetInstance();
+	auto state = *(cdc::PCStateManager**)((char*)device + 644); // TODO
+
+	if (s_wireframe)
+	{
+		state->SetRenderState(D3DRS_FILLMODE, D3DFILL_WIREFRAME);
+	}
+
+	s_PCScene_Draw(a1, a2, a3);
+
+	// Reset
+	if (s_wireframe)
+	{
+		state->SetRenderState(D3DRS_FILLMODE, D3DFILL_SOLID);
+	}
+}
+#endif
 
 Render::Render()
 {
+#ifndef TR8
 	// Insert terrain wireframe hook
 	MH_CreateHook((void*)GET_ADDRESS(0x40ACF0, 0x40B9B0, 0x000000), TerrainDrawable_TerrainDrawable, (void**)&s_TerrainDrawable_TerrainDrawable);
+#else
+	MH_CreateHook((void*)0x5150E0, PCScene_Draw, (void**)&s_PCScene_Draw);
+#endif
 	MH_EnableHook(MH_ALL_HOOKS);
 }
 
 void Render::OnMenu()
 {
 	if (ImGui::BeginMenu("Render"))
 	{
-		// TODO Wireframe for Underworld
+#ifndef TR8
 		ImGui::MenuItem("Wireframe", nullptr, (bool*)GET_ADDRESS(0x1075BD4, 0x7C7CD4, 0x000000));
 		ImGui::MenuItem("Terrain wireframe", nullptr, &s_terrainWireframe);
+#else
+		ImGui::MenuItem("Wireframe", nullptr, &s_wireframe);
+#endif
 
 		ImGui::EndMenu();
 	}