src/script/scripting_mainmenu.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "scripting_mainmenu.h"
  21 #include "content/mods.h"
  22 #include "cpp_api/s_internal.h"
  23 #include "lua_api/l_base.h"
  24 #include "lua_api/l_http.h"
  25 #include "lua_api/l_mainmenu.h"
  26 #include "lua_api/l_mainmenu_sound.h"
  27 #include "lua_api/l_util.h"
  28 #include "lua_api/l_settings.h"
  29 #include "log.h"
  30
  31 extern "C" {
  32 #include "lualib.h"
  33 }
  34 #define MAINMENU_NUM_ASYNC_THREADS 4
  35
  36
  37 MainMenuScripting::MainMenuScripting(GUIEngine* guiengine):
  38                 ScriptApiBase(ScriptingType::MainMenu)
  39 {
  40         setGuiEngine(guiengine);
  41
  42         SCRIPTAPI_PRECHECKHEADER
  43
  44         lua_getglobal(L, "core");
  45         int top = lua_gettop(L);
  46
  47         lua_newtable(L);
  48         lua_setglobal(L, "gamedata");
  49
  50         // Initialize our lua_api modules
  51         initializeModApi(L, top);
  52         lua_pop(L, 1);
  53
  54         // Push builtin initialization type
  55         lua_pushstring(L, "mainmenu");
  56         lua_setglobal(L, "INIT");
  57
  58         infostream << "SCRIPTAPI: Initialized main menu modules" << std::endl;
  59 }
  60
  61 void MainMenuScripting::initializeModApi(lua_State *L, int top)
  62 {
  63         registerLuaClasses(L, top);
  64
  65         // Initialize mod API modules
  66         ModApiMainMenu::Initialize(L, top);
  67         ModApiUtil::Initialize(L, top);
  68         ModApiMainMenuSound::Initialize(L, top);
  69         ModApiHttp::Initialize(L, top);
  70
  71         asyncEngine.registerStateInitializer(registerLuaClasses);
  72         asyncEngine.registerStateInitializer(ModApiMainMenu::InitializeAsync);
  73         asyncEngine.registerStateInitializer(ModApiUtil::InitializeAsync);
  74         asyncEngine.registerStateInitializer(ModApiHttp::InitializeAsync);
  75
  76         // Initialize async environment
  77         //TODO possibly make number of async threads configurable
  78         asyncEngine.initialize(MAINMENU_NUM_ASYNC_THREADS);
  79 }
  80
  81 void MainMenuScripting::registerLuaClasses(lua_State *L, int top)
  82 {
  83         LuaSettings::Register(L);
  84         MainMenuSoundHandle::Register(L);
  85 }
  86
  87 void MainMenuScripting::beforeClose()
  88 {
  89         SCRIPTAPI_PRECHECKHEADER
  90
  91         int error_handler = PUSH_ERROR_HANDLER(L);
  92
  93         lua_getglobal(L, "core");
  94         lua_getfield(L, -1, "on_before_close");
  95
  96         PCALL_RES(lua_pcall(L, 0, 0, error_handler));
  97
  98         lua_pop(L, 2); // Pop core, error handler
  99 }
 100
 101 void MainMenuScripting::step()
 102 {
 103         asyncEngine.step(getStack());
 104 }
 105
 106 u32 MainMenuScripting::queueAsync(std::string &&serialized_func,
 107                 std::string &&serialized_param)
 108 {
 109         return asyncEngine.queueAsyncJob(std::move(serialized_func), std::move(serialized_param));
 110 }
 111