forked from alterware/s1-mod
364 lines
8.5 KiB
C++
364 lines
8.5 KiB
C++
#include <std_include.hpp>
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#include "loader/component_loader.hpp"
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#include "game/game.hpp"
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#include "game/dvars.hpp"
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#include "command.hpp"
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#include "localized_strings.hpp"
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#include "console.hpp"
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#include "game_module.hpp"
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#include "fps.hpp"
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#include "game/ui_scripting/execution.hpp"
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#include "ui_scripting.hpp"
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#include <utils/hook.hpp>
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#include <utils/io.hpp>
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namespace ui_scripting
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{
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namespace
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{
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std::unordered_map<game::hks::cclosure*, std::function<arguments(const function_arguments& args)>> converted_functions;
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utils::hook::detour hks_start_hook;
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utils::hook::detour hks_shutdown_hook;
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utils::hook::detour hks_package_require_hook;
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struct script
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{
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std::string name;
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std::string root;
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};
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struct globals
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{
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std::string in_require_script;
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std::vector<script> loaded_scripts;
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bool load_raw_script{};
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std::string raw_script_name{};
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};
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globals globals{};
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bool is_loaded_script(const std::string& name)
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{
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return std::ranges::any_of(globals.loaded_scripts, [name](const auto& loaded_script)
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{
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return loaded_script.name == name;
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});
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}
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std::string get_root_script(const std::string& name)
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{
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for (const auto& loaded_script : globals.loaded_scripts)
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{
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if (loaded_script.name == name)
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{
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return loaded_script.root;
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}
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}
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return {};
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}
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table get_globals()
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{
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const auto state = *game::hks::lua_state;
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return state->globals.v.table;
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}
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void print_error(const std::string& error)
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{
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console::error("************** LUI script execution error **************\n");
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console::error("%s\n", error.data());
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console::error("********************************************************\n");
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}
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void print_loading_script(const std::string& name)
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{
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console::info("Loading LUI script '%s'\n", name.data());
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}
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std::string get_current_script()
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{
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const auto state = *game::hks::lua_state;
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game::hks::lua_Debug info{};
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game::hks::hksi_lua_getstack(state, 1, &info);
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game::hks::hksi_lua_getinfo(state, "nSl", &info);
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return info.short_src;
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}
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int load_buffer(const std::string& name, const std::string& data)
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{
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const auto state = *game::hks::lua_state;
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const auto sharing_mode = state->m_global->m_bytecodeSharingMode;
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state->m_global->m_bytecodeSharingMode = game::hks::HKS_BYTECODE_SHARING_ON;
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const auto _0 = gsl::finally([&]()
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{
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state->m_global->m_bytecodeSharingMode = sharing_mode;
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});
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game::hks::HksCompilerSettings compiler_settings{};
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return game::hks::hksi_hksL_loadbuffer(state, &compiler_settings, data.data(), data.size(), name.data());
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}
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void load_script(const std::string& name, const std::string& data)
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{
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globals.loaded_scripts.push_back({name, name});
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const auto lua = get_globals();
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const auto load_results = lua["loadstring"](data, name);
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if (load_results[0].is<function>())
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{
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const auto results = lua["pcall"](load_results);
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if (!results[0].as<bool>())
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{
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print_error(results[1].as<std::string>());
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}
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}
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else if (load_results[1].is<std::string>())
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{
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print_error(load_results[1].as<std::string>());
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}
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}
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void load_scripts(const std::string& script_dir)
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{
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if (!utils::io::directory_exists(script_dir))
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{
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return;
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}
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const auto scripts = utils::io::list_files(script_dir);
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for (const auto& script : scripts)
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{
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std::string data{};
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if (std::filesystem::is_directory(script) && utils::io::read_file(script + "/__init__.lua", &data))
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{
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print_loading_script(script);
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load_script(script + "/__init__.lua", data);
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}
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}
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}
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void setup_functions()
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{
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const auto lua = get_globals();
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using game = table;
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auto game_type = game();
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lua["game"] = game_type;
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game_type["getfps"] = [](const game&)
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{
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return fps::get_fps();
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};
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game_type["getping"] = [](const game&)
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{
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return *::game::mp::ping;
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};
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game_type["issingleplayer"] = [](const game&)
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{
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return ::game::environment::is_sp();
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};
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game_type["ismultiplayer"] = [](const game&)
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{
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return ::game::environment::is_mp();
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};
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game_type["addlocalizedstring"] = [](const game&, const std::string& string,
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const std::string& value)
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{
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localized_strings::override(string, value);
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};
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}
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void enable_globals()
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{
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const auto lua = get_globals();
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const std::string script =
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"local g = getmetatable(_G)\n"
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"if not g then\n"
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"g = {}\n"
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"setmetatable(_G, g)\n"
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"end\n"
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"g.__newindex = nil\n";
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(void)lua["loadstring"](script)[0]();
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}
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void start()
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{
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globals = {};
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const auto lua = get_globals();
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enable_globals();
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setup_functions();
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lua["print"] = function(reinterpret_cast<game::hks::lua_function>(0x14007CB70));
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lua["table"]["unpack"] = lua["unpack"];
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lua["luiglobals"] = lua;
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load_scripts(game_module::get_host_module().get_folder() + "/data/ui_scripts/");
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load_scripts("s1/ui_scripts/");
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}
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void try_start()
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{
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try
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{
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start();
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}
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catch (const std::exception& e)
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{
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console::error("Failed to load LUI scripts: %s\n", e.what());
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}
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}
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void* hks_start_stub(char a1)
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{
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const auto _0 = gsl::finally(&try_start);
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return hks_start_hook.invoke<void*>(a1);
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}
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void hks_shutdown_stub()
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{
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converted_functions.clear();
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globals = {};
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return hks_shutdown_hook.invoke<void>();
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}
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void* hks_package_require_stub(game::hks::lua_State* state)
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{
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const auto script = get_current_script();
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const auto root = get_root_script(script);
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globals.in_require_script = root;
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return hks_package_require_hook.invoke<void*>(state);
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}
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game::XAssetHeader db_find_x_asset_header_stub(game::XAssetType type, const char* name, int allow_create_default)
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{
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game::XAssetHeader header{.luaFile = nullptr};
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if (!is_loaded_script(globals.in_require_script))
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{
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return game::DB_FindXAssetHeader(type, name, allow_create_default);
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}
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const auto folder = globals.in_require_script.substr(0, globals.in_require_script.find_last_of("/\\"));
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const std::string name_ = name;
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const std::string target_script = folder + "/" + name_ + ".lua";
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if (utils::io::file_exists(target_script))
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{
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globals.load_raw_script = true;
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globals.raw_script_name = target_script;
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header.luaFile = reinterpret_cast<game::LuaFile*>(1);
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}
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else if (name_.starts_with("ui/LUI/"))
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{
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return game::DB_FindXAssetHeader(type, name, allow_create_default);
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}
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return header;
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}
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int hks_load_stub(game::hks::lua_State* state, void* compiler_options,
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void* reader, void* reader_data, const char* chunk_name)
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{
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if (globals.load_raw_script)
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{
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globals.load_raw_script = false;
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globals.loaded_scripts.push_back({globals.raw_script_name, globals.in_require_script});
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return load_buffer(globals.raw_script_name, utils::io::read_file(globals.raw_script_name));
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}
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return utils::hook::invoke<int>(0x14009CA10, state, compiler_options, reader, reader_data, chunk_name);
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}
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int main_handler(game::hks::lua_State* state)
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{
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const auto value = state->m_apistack.base[-1];
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if (value.t != game::hks::TCFUNCTION)
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{
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return 0;
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}
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const auto closure = value.v.cClosure;
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if (!converted_functions.contains(closure))
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{
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return 0;
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}
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const auto& function = converted_functions[closure];
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try
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{
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const auto args = get_return_values();
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const auto results = function(args);
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for (const auto& result : results)
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{
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push_value(result);
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}
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return static_cast<int>(results.size());
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}
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catch (const std::exception& e)
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{
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game::hks::hksi_luaL_error(state, e.what());
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}
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return 0;
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}
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}
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template <typename F>
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game::hks::cclosure* convert_function(F f)
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{
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const auto state = *game::hks::lua_state;
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const auto closure = game::hks::cclosure_Create(state, main_handler, 0, 0, 0);
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converted_functions[closure] = wrap_function(f);
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return closure;
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}
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class component final : public component_interface
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{
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public:
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void post_unpack() override
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{
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if (!game::environment::is_mp())
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{
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return;
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}
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utils::hook::call(0x1400CB68B, db_find_x_asset_header_stub);
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utils::hook::call(0x1400CB7D6, db_find_x_asset_header_stub);
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utils::hook::call(0x1400CB861, hks_load_stub);
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hks_package_require_hook.create(0x1400781D0, hks_package_require_stub);
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hks_start_hook.create(0x1400E4E40, hks_start_stub);
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hks_shutdown_hook.create(0x1400DB9A0, hks_shutdown_stub);
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command::add("lui_restart", []
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{
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utils::hook::invoke<void>(0x1400DB9A0);
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utils::hook::invoke<void>(0x1400E6730);
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});
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}
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};
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}
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REGISTER_COMPONENT(ui_scripting::component)
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