feat: add increased bullet penetration dvar (#704)

Co-authored-by: FutureRave <edoardo.sanguineti222@gmail.com>

src/client/component/bullet.cpp

@@ -0,0 +1,44 @@
+#include <std_include.hpp>
+#include "loader/component_loader.hpp"
+
+#include "game/game.hpp"
+#include "game/dvars.hpp"
+
+#include <utils/hook.hpp>
+
+namespace bullet
+{
+	namespace
+	{
+		utils::hook::detour bg_get_surface_penetration_depth_hook;
+
+		float bg_get_surface_penetration_depth_stub(game::Weapon weapon, bool is_alternate, int surfaceType)
+		{
+			if (dvars::bg_surfacePenetration->current.value > 0.0f)
+			{
+				return dvars::bg_surfacePenetration->current.value;
+			}
+
+			return bg_get_surface_penetration_depth_hook.invoke<float>(weapon, is_alternate, surfaceType);
+		}
+	}
+
+	class component final : public component_interface
+	{
+	public:
+		void post_unpack() override
+		{
+			if (game::environment::is_sp())
+			{
+				return;
+			}
+
+			dvars::bg_surfacePenetration = game::Dvar_RegisterFloat("bg_surfacePenetration", 0.0f,
+				0.0f, std::numeric_limits<float>::max(), game::DVAR_FLAG_SAVED,
+				"Set to a value greater than 0 to override the surface penetration depth");
+			bg_get_surface_penetration_depth_hook.create(0x1401641A0, &bg_get_surface_penetration_depth_stub);
+		}
+	};
+}
+
+REGISTER_COMPONENT(bullet::component)

src/client/game/dvars.cpp

@@ -20,6 +20,8 @@ namespace dvars
 	game::dvar_t* g_playerEjection = nullptr;
 	game::dvar_t* g_playerCollision = nullptr;
 
+	game::dvar_t* bg_surfacePenetration = nullptr;
+
 	game::dvar_t* pm_bouncing = nullptr;
 	game::dvar_t* g_dump_scripts = nullptr;
 	game::dvar_t* g_gravity = nullptr;

src/client/game/dvars.hpp

@@ -19,6 +19,8 @@ namespace dvars
 	extern game::dvar_t* g_playerCollision;
 	extern game::dvar_t* g_playerEjection;
 
+	extern game::dvar_t* bg_surfacePenetration;
+
 	extern game::dvar_t* pm_bouncing;
 	extern game::dvar_t* g_dump_scripts;
 	extern game::dvar_t* g_gravity;