mirror of https://github.com/minetest/minetest.git
261 lines
7.1 KiB
C++
261 lines
7.1 KiB
C++
/*
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Minetest
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Copyright (C) 2013 sapier
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef GUI_ENGINE_H_
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#define GUI_ENGINE_H_
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/******************************************************************************/
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/* Includes */
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/******************************************************************************/
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#include "irrlichttypes.h"
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#include "modalMenu.h"
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#include "clouds.h"
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#include "guiLuaApi.h"
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#include "guiFormSpecMenu.h"
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/******************************************************************************/
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/* Typedefs and macros */
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/******************************************************************************/
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#define MAX_MENUBAR_BTN_COUNT 10
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#define MAX_MENUBAR_BTN_ID 256
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#define MIN_MENUBAR_BTN_ID (MAX_MENUBAR_BTN_ID - MAX_MENUBAR_BTN_COUNT)
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/** texture layer ids */
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typedef enum {
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TEX_LAYER_BACKGROUND = 0,
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TEX_LAYER_OVERLAY,
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TEX_LAYER_HEADER,
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TEX_LAYER_FOOTER,
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TEX_LAYER_MAX
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} texture_layer;
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/******************************************************************************/
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/* forward declarations */
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/******************************************************************************/
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class GUIEngine;
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struct MainMenuData;
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/******************************************************************************/
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/* declarations */
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/******************************************************************************/
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/** GUIEngine specific implementation of TextDest used within guiFormSpecMenu */
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class TextDestGuiEngine : public TextDest
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{
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public:
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/**
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* default constructor
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* @param engine the engine data is transmitted for further processing
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*/
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TextDestGuiEngine(GUIEngine* engine);
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/**
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* receive fields transmitted by guiFormSpecMenu
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* @param fields map containing formspec field elements currently active
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*/
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void gotText(std::map<std::string, std::string> fields);
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/**
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* receive text/events transmitted by guiFormSpecMenu
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* @param text textual representation of event
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*/
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void gotText(std::wstring text);
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private:
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/** target to transmit data to */
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GUIEngine* m_engine;
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};
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/** implementation of main menu based uppon formspecs */
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class GUIEngine {
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public:
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/** TextDestGuiEngine needs to transfer data to engine */
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friend class TextDestGuiEngine;
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/** guiLuaApi is used to initialize contained stack */
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friend class guiLuaApi;
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/**
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* default constructor
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* @param dev device to draw at
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* @param parent parent gui element
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* @param menumgr manager to add menus to
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* @param smgr scene manager to add scene elements to
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* @param data struct to transfer data to main game handling
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*/
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GUIEngine( irr::IrrlichtDevice* dev,
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gui::IGUIElement* parent,
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IMenuManager *menumgr,
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scene::ISceneManager* smgr,
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MainMenuData* data);
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/** default destructor */
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virtual ~GUIEngine();
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protected:
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/**
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* process field data recieved from formspec
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* @param fields data in field format
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*/
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void handleButtons(std::map<std::string, std::string> fields);
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/**
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* process events received from formspec
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* @param text events in textual form
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*/
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void handleEvent(std::string text);
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/**
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* return dir of current menuscript
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*/
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std::string getScriptDir() {
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return m_scriptdir;
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}
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private:
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/* run main menu loop */
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void run();
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/** handler to limit frame rate within main menu */
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void limitFrameRate();
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/** device to draw at */
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irr::IrrlichtDevice* m_device;
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/** parent gui element */
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gui::IGUIElement* m_parent;
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/** manager to add menus to */
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IMenuManager* m_menumanager;
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/** scene manager to add scene elements to */
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scene::ISceneManager* m_smgr;
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/** pointer to data beeing transfered back to main game handling */
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MainMenuData* m_data;
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/** representation of form source to be used in mainmenu formspec */
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FormspecFormSource* m_formspecgui;
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/** formspec input receiver */
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TextDestGuiEngine* m_buttonhandler;
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/** the formspec menu */
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GUIFormSpecMenu* m_menu;
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/** variable used to abort menu and return back to main game handling */
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bool m_startgame;
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/**
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* initialize lua stack
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* @param L stack to initialize
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*/
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void initalize_api(lua_State * L);
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/**
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* run a lua script
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* @param script full path to script to run
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*/
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bool runScript(std::string script);
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/**
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* script error handler to process errors within lua
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*/
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void scriptError(const char *fmt, ...);
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/** lua stack */
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lua_State* m_engineluastack;
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/** lua internal stack number of error handler*/
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int m_luaerrorhandler;
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/** script basefolder */
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std::string m_scriptdir;
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/**
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* draw background layer
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* @param driver to use for drawing
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*/
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void drawBackground(video::IVideoDriver* driver);
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/**
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* draw overlay layer
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* @param driver to use for drawing
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*/
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void drawOverlay(video::IVideoDriver* driver);
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/**
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* draw header layer
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* @param driver to use for drawing
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*/
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void drawHeader(video::IVideoDriver* driver);
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/**
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* draw footer layer
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* @param driver to use for drawing
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*/
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void drawFooter(video::IVideoDriver* driver);
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/**
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* load a texture for a specified layer
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* @param layer draw layer to specify texture
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* @param texturepath full path of texture to load
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*/
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bool setTexture(texture_layer layer,std::string texturepath);
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/**
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* download a file using curl
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* @param url url to download
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* @param target file to store to
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*/
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bool downloadFile(std::string url,std::string target);
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/** array containing pointers to current specified texture layers */
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video::ITexture* m_textures[TEX_LAYER_MAX];
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/** draw version string in topleft corner */
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void drawVersion();
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/**
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* specify text to be appended to version string
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* @param text to set
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*/
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void setTopleftText(std::string append);
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/** pointer to gui element shown at topleft corner */
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irr::gui::IGUIStaticText* m_irr_toplefttext;
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/** initialize cloud subsystem */
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void cloudInit();
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/** do preprocessing for cloud subsystem */
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void cloudPreProcess();
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/** do postprocessing for cloud subsystem */
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void cloudPostProcess();
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/** internam data required for drawing clouds */
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struct clouddata {
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/** delta time since last cloud processing */
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f32 dtime;
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/** absolute time of last cloud processing */
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u32 lasttime;
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/** pointer to cloud class */
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Clouds* clouds;
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/** camera required for drawing clouds */
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scene::ICameraSceneNode* camera;
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};
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/** is drawing of clouds enabled atm */
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bool m_clouds_enabled;
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/** data used to draw clouds */
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clouddata m_cloud;
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};
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#endif /* GUI_ENGINE_H_ */
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