h2-mod/src/client/component/fastfiles.cpp

#include <std_include.hpp>
#include "loader/component_loader.hpp"
#include "fastfiles.hpp"

#include "command.hpp"
#include "game_console.hpp"

#include <utils/hook.hpp>
#include <utils/concurrency.hpp>

namespace fastfiles
{
	static utils::concurrency::container<std::string> current_fastfile;

	namespace
	{
		utils::hook::detour db_try_load_x_file_internal_hook;

		void db_try_load_x_file_internal(const char* zone_name, const int flags)
		{
			game_console::print(game_console::con_type_info, "Loading fastfile %s\n", zone_name);
			current_fastfile.access([&](std::string& fastfile)
			{
				fastfile = zone_name;
			});
			return db_try_load_x_file_internal_hook.invoke<void>(zone_name, flags);
		}
	}

	void enum_assets(const game::XAssetType type, const std::function<void(game::XAssetHeader)>& callback, const bool includeOverride)
	{
		game::DB_EnumXAssets_Internal(type, static_cast<void(*)(game::XAssetHeader, void*)>([](game::XAssetHeader header, void* data)
		{
			const auto& cb = *static_cast<const std::function<void(game::XAssetHeader)>*>(data);
			cb(header);
		}), &callback, includeOverride);
	}

	std::string get_current_fastfile()
	{
		std::string fastfile_copy;
		current_fastfile.access([&](std::string& fastfile)
		{
			fastfile_copy = fastfile;
		});
		return fastfile_copy;
	}

	class component final : public component_interface
	{
	public:
		void post_unpack() override
		{
			db_try_load_x_file_internal_hook.create(0x4173B0_b, &db_try_load_x_file_internal);

			command::add("loadzone", [](const command::params& params)
			{
				if (params.size() < 2)
				{
					game_console::print(game_console::con_type_info, "usage: loadzone <zone>\n");
					return;
				}

				game::XZoneInfo info{};
				info.name = params.get(1);
				info.allocFlags = 1;
				info.freeFlags = 0;
				game::DB_LoadXAssets(&info, 1u, game::DBSyncMode::DB_LOAD_SYNC);
			});

			command::add("g_poolSizes", []()
			{
				for (auto i = 0; i < game::ASSET_TYPE_COUNT; i++)
				{
					game_console::print(game_console::con_type_info, "g_poolSize[%i]: %i // %s\n", i, game::g_poolSize[i], game::g_assetNames[i]);
				}
			});
		}
	};
}

REGISTER_COMPONENT(fastfiles::component)