feat(Protection): fragment physics crash (#806)

Patch made by @SkiddyToast

src/hooking.cpp

@@ -101,6 +101,9 @@ namespace big
 		detour_hook_helper::add<hooks::queue_dependency>("QD", g_pointers->m_queue_dependency);
 		detour_hook_helper::add<hooks::prepare_metric_for_sending>("PMFS", g_pointers->m_prepare_metric_for_sending);
 
+		detour_hook_helper::add<hooks::fragment_physics_crash>("FPC", g_pointers->m_fragment_physics_crash);
+		detour_hook_helper::add<hooks::fragment_physics_crash_2>("FPC2", g_pointers->m_fragment_physics_crash_2);
+
 		g_hooking = this;
 	}
 

src/hooking.hpp

@@ -66,6 +66,9 @@ namespace big
 		static void network_player_mgr_init(CNetworkPlayerMgr* _this, std::uint64_t a2, std::uint32_t a3, std::uint32_t a4[4]);
 		static void network_player_mgr_shutdown(CNetworkPlayerMgr* _this);
 
+		static bool fragment_physics_crash(uintptr_t a1, uint32_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5);
+		static bool fragment_physics_crash_2(float* a1, float* a2);
+
 		static void received_event(
 			rage::netEventMgr* event_manager,
 			CNetGamePlayer* source_player,

src/hooks/protections/fragment_physics_crash.cpp

@@ -0,0 +1,21 @@
+#include "hooking.hpp"
+
+namespace big
+{
+    bool hooks::fragment_physics_crash(uintptr_t a1, uint32_t a2, uintptr_t a3, uintptr_t a4, uintptr_t a5)
+    {
+        if (auto ptr = *reinterpret_cast<uintptr_t*>(a5 + 0x70); ptr)
+            if (auto ptr2 = *reinterpret_cast<uintptr_t*>(ptr + 8 * a2); !ptr2)
+                return false;
+
+        return g_hooking->get_original<hooks::fragment_physics_crash>()(a1, a2, a3, a4, a5);
+    }
+
+    bool hooks::fragment_physics_crash_2(float* a1, float* a2)
+    {
+        if (!a1 || !a2)
+            return false;
+
+        return g_hooking->get_original<hooks::fragment_physics_crash_2>()(a1, a2);
+    }
+}

src/pointers.cpp

@@ -780,6 +780,18 @@ namespace big
 			m_prepare_metric_for_sending = ptr.as<PVOID>();
 		});
 
+		// Fragment Physics Crash
+		main_batch.add("FPC", "E8 ? ? ? ? 44 8B 4D 1C", [this](memory::handle ptr)
+		{
+			m_fragment_physics_crash = ptr.add(1).rip().as<PVOID>();
+		});
+
+		// Fragment Physics Crash 2
+		main_batch.add("FPC2", "E8 ? ? ? ? 84 C0 75 0B 41 FF CF", [this](memory::handle ptr)
+		{
+			m_fragment_physics_crash_2 = ptr.add(1).rip().as<PVOID>();
+		});
+
 		auto mem_region = memory::module("GTA5.exe");
 		main_batch.run(mem_region);
 

src/pointers.hpp

@@ -227,6 +227,10 @@ namespace big
 		functions::sync_network_time m_sync_network_time;
 
 		rage::rlGamerInfo* m_chat_gamer_info;
+
+		PVOID m_fragment_physics_crash;
+		PVOID m_fragment_physics_crash_2;
+
 	};
 
 	inline pointers* g_pointers{};