src/guiEngine.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 sapier
   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 "guiEngine.h"
  21
  22 #include <fstream>
  23 #include <IGUIStaticText.h>
  24 #include <ICameraSceneNode.h>
  25 #include "scripting_mainmenu.h"
  26 #include "util/numeric.h"
  27 #include "config.h"
  28 #include "version.h"
  29 #include "porting.h"
  30 #include "filesys.h"
  31 #include "settings.h"
  32 #include "guiMainMenu.h"
  33 #include "sound.h"
  34 #include "sound_openal.h"
  35 #include "clouds.h"
  36 #include "httpfetch.h"
  37 #include "log.h"
  38 #include "fontengine.h"
  39 #include "guiscalingfilter.h"
  40
  41 #ifdef __ANDROID__
  42 #include "client/tile.h"
  43 #include <GLES/gl.h>
  44 #endif
  45
  46
  47 /******************************************************************************/
  48 /** TextDestGuiEngine                                                         */
  49 /******************************************************************************/
  50 TextDestGuiEngine::TextDestGuiEngine(GUIEngine* engine)
  51 {
  52         m_engine = engine;
  53 }
  54
  55 /******************************************************************************/
  56 void TextDestGuiEngine::gotText(std::map<std::string, std::string> fields)
  57 {
  58         m_engine->getScriptIface()->handleMainMenuButtons(fields);
  59 }
  60
  61 /******************************************************************************/
  62 void TextDestGuiEngine::gotText(std::wstring text)
  63 {
  64         m_engine->getScriptIface()->handleMainMenuEvent(wide_to_narrow(text));
  65 }
  66
  67 /******************************************************************************/
  68 /** MenuTextureSource                                                         */
  69 /******************************************************************************/
  70 MenuTextureSource::MenuTextureSource(video::IVideoDriver *driver)
  71 {
  72         m_driver = driver;
  73 }
  74
  75 /******************************************************************************/
  76 MenuTextureSource::~MenuTextureSource()
  77 {
  78         for (std::set<std::string>::iterator it = m_to_delete.begin();
  79                         it != m_to_delete.end(); ++it) {
  80                 const char *tname = (*it).c_str();
  81                 video::ITexture *texture = m_driver->getTexture(tname);
  82                 m_driver->removeTexture(texture);
  83         }
  84 }
  85
  86 /******************************************************************************/
  87 video::ITexture* MenuTextureSource::getTexture(const std::string &name, u32 *id)
  88 {
  89         if(id)
  90                 *id = 0;
  91         if(name.empty())
  92                 return NULL;
  93         m_to_delete.insert(name);
  94
  95 #ifdef __ANDROID__
  96         video::IImage *image = m_driver->createImageFromFile(name.c_str());
  97         if (image) {
  98                 image = Align2Npot2(image, m_driver);
  99                 video::ITexture* retval = m_driver->addTexture(name.c_str(), image);
 100                 image->drop();
 101                 return retval;
 102         }
 103 #endif
 104         return m_driver->getTexture(name.c_str());
 105 }
 106
 107 /******************************************************************************/
 108 /** MenuMusicFetcher                                                          */
 109 /******************************************************************************/
 110 void MenuMusicFetcher::fetchSounds(const std::string &name,
 111                         std::set<std::string> &dst_paths,
 112                         std::set<std::string> &dst_datas)
 113 {
 114         if(m_fetched.count(name))
 115                 return;
 116         m_fetched.insert(name);
 117         std::string base;
 118         base = porting::path_share + DIR_DELIM + "sounds";
 119         dst_paths.insert(base + DIR_DELIM + name + ".ogg");
 120         int i;
 121         for(i=0; i<10; i++)
 122                 dst_paths.insert(base + DIR_DELIM + name + "."+itos(i)+".ogg");
 123         base = porting::path_user + DIR_DELIM + "sounds";
 124         dst_paths.insert(base + DIR_DELIM + name + ".ogg");
 125         for(i=0; i<10; i++)
 126                 dst_paths.insert(base + DIR_DELIM + name + "."+itos(i)+".ogg");
 127 }
 128
 129 /******************************************************************************/
 130 /** GUIEngine                                                                 */
 131 /******************************************************************************/
 132 GUIEngine::GUIEngine(   irr::IrrlichtDevice* dev,
 133                                                 gui::IGUIElement* parent,
 134                                                 IMenuManager *menumgr,
 135                                                 scene::ISceneManager* smgr,
 136                                                 MainMenuData* data,
 137                                                 bool& kill) :
 138         m_device(dev),
 139         m_parent(parent),
 140         m_menumanager(menumgr),
 141         m_smgr(smgr),
 142         m_data(data),
 143         m_texture_source(NULL),
 144         m_sound_manager(NULL),
 145         m_formspecgui(0),
 146         m_buttonhandler(0),
 147         m_menu(0),
 148         m_kill(kill),
 149         m_startgame(false),
 150         m_script(0),
 151         m_scriptdir(""),
 152         m_irr_toplefttext(0),
 153         m_clouds_enabled(true),
 154         m_cloud()
 155 {
 156         //initialize texture pointers
 157         for (unsigned int i = 0; i < TEX_LAYER_MAX; i++) {
 158                 m_textures[i].texture = NULL;
 159         }
 160         // is deleted by guiformspec!
 161         m_buttonhandler = new TextDestGuiEngine(this);
 162
 163         //create texture source
 164         m_texture_source = new MenuTextureSource(m_device->getVideoDriver());
 165
 166         //create soundmanager
 167         MenuMusicFetcher soundfetcher;
 168 #if USE_SOUND
 169         m_sound_manager = createOpenALSoundManager(&soundfetcher);
 170 #endif
 171         if(!m_sound_manager)
 172                 m_sound_manager = &dummySoundManager;
 173
 174         //create topleft header
 175         std::wstring t = narrow_to_wide(std::string(PROJECT_NAME " ") +
 176                         g_version_hash);
 177
 178         core::rect<s32> rect(0, 0, g_fontengine->getTextWidth(t), g_fontengine->getTextHeight());
 179         rect += v2s32(4, 0);
 180
 181         m_irr_toplefttext =
 182                 m_device->getGUIEnvironment()->addStaticText(t.c_str(),
 183                 rect,false,true,0,-1);
 184
 185         //create formspecsource
 186         m_formspecgui = new FormspecFormSource("");
 187
 188         /* Create menu */
 189         m_menu = new GUIFormSpecMenu(m_device,
 190                         m_parent,
 191                         -1,
 192                         m_menumanager,
 193                         NULL /* &client */,
 194                         NULL /* gamedef */,
 195                         m_texture_source,
 196                         m_formspecgui,
 197                         m_buttonhandler,
 198                         NULL,
 199                         false);
 200
 201         m_menu->allowClose(false);
 202         m_menu->lockSize(true,v2u32(800,600));
 203
 204         // Initialize scripting
 205
 206         infostream << "GUIEngine: Initializing Lua" << std::endl;
 207
 208         m_script = new MainMenuScripting(this);
 209
 210         try {
 211                 if (m_data->errormessage != "") {
 212                         m_script->setMainMenuErrorMessage(m_data->errormessage);
 213                         m_data->errormessage = "";
 214                 }
 215
 216                 if (!loadMainMenuScript()) {
 217                         errorstream << "No future without mainmenu" << std::endl;
 218                         abort();
 219                 }
 220
 221                 run();
 222         }
 223         catch(LuaError &e) {
 224                 errorstream << "MAINMENU ERROR: " << e.what() << std::endl;
 225                 m_data->errormessage = e.what();
 226         }
 227
 228         m_menu->quitMenu();
 229         m_menu->drop();
 230         m_menu = NULL;
 231 }
 232
 233 /******************************************************************************/
 234 bool GUIEngine::loadMainMenuScript()
 235 {
 236         // Try custom menu script (main_menu_path)
 237
 238         m_scriptdir = g_settings->get("main_menu_path");
 239         if (m_scriptdir.empty()) {
 240                 m_scriptdir = porting::path_share + DIR_DELIM "builtin" + DIR_DELIM "mainmenu";
 241         }
 242
 243         std::string script = porting::path_share + DIR_DELIM "builtin" + DIR_DELIM "init.lua";
 244         if (m_script->loadScript(script)) {
 245                 // Menu script loaded
 246                 return true;
 247         } else {
 248                 infostream
 249                         << "GUIEngine: execution of menu script in: \""
 250                         << m_scriptdir << "\" failed!" << std::endl;
 251         }
 252
 253         return false;
 254 }
 255
 256 /******************************************************************************/
 257 void GUIEngine::run()
 258 {
 259         // Always create clouds because they may or may not be
 260         // needed based on the game selected
 261         video::IVideoDriver* driver = m_device->getVideoDriver();
 262
 263         cloudInit();
 264
 265         unsigned int text_height = g_fontengine->getTextHeight();
 266
 267         while(m_device->run() && (!m_startgame) && (!m_kill))
 268         {
 269                 //check if we need to update the "upper left corner"-text
 270                 if (text_height != g_fontengine->getTextHeight()) {
 271                         updateTopLeftTextSize();
 272                         text_height = g_fontengine->getTextHeight();
 273                 }
 274
 275                 driver->beginScene(true, true, video::SColor(255,140,186,250));
 276
 277                 if (m_clouds_enabled)
 278                 {
 279                         cloudPreProcess();
 280                         drawOverlay(driver);
 281                 }
 282                 else
 283                         drawBackground(driver);
 284
 285                 drawHeader(driver);
 286                 drawFooter(driver);
 287
 288                 m_device->getGUIEnvironment()->drawAll();
 289
 290                 driver->endScene();
 291
 292                 if (m_clouds_enabled)
 293                         cloudPostProcess();
 294                 else
 295                         sleep_ms(25);
 296
 297                 m_script->step();
 298
 299 #ifdef __ANDROID__
 300                 m_menu->getAndroidUIInput();
 301 #endif
 302         }
 303 }
 304
 305 /******************************************************************************/
 306 GUIEngine::~GUIEngine()
 307 {
 308         video::IVideoDriver* driver = m_device->getVideoDriver();
 309         FATAL_ERROR_IF(driver == 0, "Could not get video driver");
 310
 311         if(m_sound_manager != &dummySoundManager){
 312                 delete m_sound_manager;
 313                 m_sound_manager = NULL;
 314         }
 315
 316         infostream<<"GUIEngine: Deinitializing scripting"<<std::endl;
 317         delete m_script;
 318
 319         m_irr_toplefttext->setText(L"");
 320
 321         //clean up texture pointers
 322         for (unsigned int i = 0; i < TEX_LAYER_MAX; i++) {
 323                 if (m_textures[i].texture != NULL)
 324                         driver->removeTexture(m_textures[i].texture);
 325         }
 326
 327         delete m_texture_source;
 328
 329         if (m_cloud.clouds)
 330                 m_cloud.clouds->drop();
 331 }
 332
 333 /******************************************************************************/
 334 void GUIEngine::cloudInit()
 335 {
 336         m_cloud.clouds = new Clouds(m_smgr->getRootSceneNode(),
 337                         m_smgr, -1, rand(), 100);
 338         m_cloud.clouds->update(v2f(0, 0), video::SColor(255,200,200,255));
 339
 340         m_cloud.camera = m_smgr->addCameraSceneNode(0,
 341                                 v3f(0,0,0), v3f(0, 60, 100));
 342         m_cloud.camera->setFarValue(10000);
 343
 344         m_cloud.lasttime = m_device->getTimer()->getTime();
 345 }
 346
 347 /******************************************************************************/
 348 void GUIEngine::cloudPreProcess()
 349 {
 350         u32 time = m_device->getTimer()->getTime();
 351
 352         if(time > m_cloud.lasttime)
 353                 m_cloud.dtime = (time - m_cloud.lasttime) / 1000.0;
 354         else
 355                 m_cloud.dtime = 0;
 356
 357         m_cloud.lasttime = time;
 358
 359         m_cloud.clouds->step(m_cloud.dtime*3);
 360         m_cloud.clouds->render();
 361         m_smgr->drawAll();
 362 }
 363
 364 /******************************************************************************/
 365 void GUIEngine::cloudPostProcess()
 366 {
 367         float fps_max = g_settings->getFloat("fps_max");
 368         // Time of frame without fps limit
 369         u32 busytime_u32;
 370
 371         // not using getRealTime is necessary for wine
 372         u32 time = m_device->getTimer()->getTime();
 373         if(time > m_cloud.lasttime)
 374                 busytime_u32 = time - m_cloud.lasttime;
 375         else
 376                 busytime_u32 = 0;
 377
 378         // FPS limiter
 379         u32 frametime_min = 1000./fps_max;
 380
 381         if(busytime_u32 < frametime_min) {
 382                 u32 sleeptime = frametime_min - busytime_u32;
 383                 m_device->sleep(sleeptime);
 384         }
 385 }
 386
 387 /******************************************************************************/
 388 void GUIEngine::drawBackground(video::IVideoDriver* driver)
 389 {
 390         v2u32 screensize = driver->getScreenSize();
 391
 392         video::ITexture* texture = m_textures[TEX_LAYER_BACKGROUND].texture;
 393
 394         /* If no texture, draw background of solid color */
 395         if(!texture){
 396                 video::SColor color(255,80,58,37);
 397                 core::rect<s32> rect(0, 0, screensize.X, screensize.Y);
 398                 driver->draw2DRectangle(color, rect, NULL);
 399                 return;
 400         }
 401
 402         v2u32 sourcesize = texture->getOriginalSize();
 403
 404         if (m_textures[TEX_LAYER_BACKGROUND].tile)
 405         {
 406                 v2u32 tilesize(
 407                                 MYMAX(sourcesize.X,m_textures[TEX_LAYER_BACKGROUND].minsize),
 408                                 MYMAX(sourcesize.Y,m_textures[TEX_LAYER_BACKGROUND].minsize));
 409                 for (unsigned int x = 0; x < screensize.X; x += tilesize.X )
 410                 {
 411                         for (unsigned int y = 0; y < screensize.Y; y += tilesize.Y )
 412                         {
 413                                 draw2DImageFilterScaled(driver, texture,
 414                                         core::rect<s32>(x, y, x+tilesize.X, y+tilesize.Y),
 415                                         core::rect<s32>(0, 0, sourcesize.X, sourcesize.Y),
 416                                         NULL, NULL, true);
 417                         }
 418                 }
 419                 return;
 420         }
 421
 422         /* Draw background texture */
 423         draw2DImageFilterScaled(driver, texture,
 424                 core::rect<s32>(0, 0, screensize.X, screensize.Y),
 425                 core::rect<s32>(0, 0, sourcesize.X, sourcesize.Y),
 426                 NULL, NULL, true);
 427 }
 428
 429 /******************************************************************************/
 430 void GUIEngine::drawOverlay(video::IVideoDriver* driver)
 431 {
 432         v2u32 screensize = driver->getScreenSize();
 433
 434         video::ITexture* texture = m_textures[TEX_LAYER_OVERLAY].texture;
 435
 436         /* If no texture, draw background of solid color */
 437         if(!texture)
 438                 return;
 439
 440         /* Draw background texture */
 441         v2u32 sourcesize = texture->getOriginalSize();
 442         draw2DImageFilterScaled(driver, texture,
 443                 core::rect<s32>(0, 0, screensize.X, screensize.Y),
 444                 core::rect<s32>(0, 0, sourcesize.X, sourcesize.Y),
 445                 NULL, NULL, true);
 446 }
 447
 448 /******************************************************************************/
 449 void GUIEngine::drawHeader(video::IVideoDriver* driver)
 450 {
 451         core::dimension2d<u32> screensize = driver->getScreenSize();
 452
 453         video::ITexture* texture = m_textures[TEX_LAYER_HEADER].texture;
 454
 455         /* If no texture, draw nothing */
 456         if(!texture)
 457                 return;
 458
 459         f32 mult = (((f32)screensize.Width / 2.0)) /
 460                         ((f32)texture->getOriginalSize().Width);
 461
 462         v2s32 splashsize(((f32)texture->getOriginalSize().Width) * mult,
 463                         ((f32)texture->getOriginalSize().Height) * mult);
 464
 465         // Don't draw the header is there isn't enough room
 466         s32 free_space = (((s32)screensize.Height)-320)/2;
 467
 468         if (free_space > splashsize.Y) {
 469                 core::rect<s32> splashrect(0, 0, splashsize.X, splashsize.Y);
 470                 splashrect += v2s32((screensize.Width/2)-(splashsize.X/2),
 471                                 ((free_space/2)-splashsize.Y/2)+10);
 472
 473         video::SColor bgcolor(255,50,50,50);
 474
 475         draw2DImageFilterScaled(driver, texture, splashrect,
 476                 core::rect<s32>(core::position2d<s32>(0,0),
 477                 core::dimension2di(texture->getOriginalSize())),
 478                 NULL, NULL, true);
 479         }
 480 }
 481
 482 /******************************************************************************/
 483 void GUIEngine::drawFooter(video::IVideoDriver* driver)
 484 {
 485         core::dimension2d<u32> screensize = driver->getScreenSize();
 486
 487         video::ITexture* texture = m_textures[TEX_LAYER_FOOTER].texture;
 488
 489         /* If no texture, draw nothing */
 490         if(!texture)
 491                 return;
 492
 493         f32 mult = (((f32)screensize.Width)) /
 494                         ((f32)texture->getOriginalSize().Width);
 495
 496         v2s32 footersize(((f32)texture->getOriginalSize().Width) * mult,
 497                         ((f32)texture->getOriginalSize().Height) * mult);
 498
 499         // Don't draw the footer if there isn't enough room
 500         s32 free_space = (((s32)screensize.Height)-320)/2;
 501
 502         if (free_space > footersize.Y) {
 503                 core::rect<s32> rect(0,0,footersize.X,footersize.Y);
 504                 rect += v2s32(screensize.Width/2,screensize.Height-footersize.Y);
 505                 rect -= v2s32(footersize.X/2, 0);
 506
 507                 draw2DImageFilterScaled(driver, texture, rect,
 508                         core::rect<s32>(core::position2d<s32>(0,0),
 509                         core::dimension2di(texture->getOriginalSize())),
 510                         NULL, NULL, true);
 511         }
 512 }
 513
 514 /******************************************************************************/
 515 bool GUIEngine::setTexture(texture_layer layer, std::string texturepath,
 516                 bool tile_image, unsigned int minsize)
 517 {
 518         video::IVideoDriver* driver = m_device->getVideoDriver();
 519         FATAL_ERROR_IF(driver == 0, "Could not get video driver");
 520
 521         if (m_textures[layer].texture != NULL)
 522         {
 523                 driver->removeTexture(m_textures[layer].texture);
 524                 m_textures[layer].texture = NULL;
 525         }
 526
 527         if ((texturepath == "") || !fs::PathExists(texturepath))
 528         {
 529                 return false;
 530         }
 531
 532         m_textures[layer].texture = driver->getTexture(texturepath.c_str());
 533         m_textures[layer].tile    = tile_image;
 534         m_textures[layer].minsize = minsize;
 535
 536         if (m_textures[layer].texture == NULL)
 537         {
 538                 return false;
 539         }
 540
 541         return true;
 542 }
 543
 544 /******************************************************************************/
 545 bool GUIEngine::downloadFile(std::string url, std::string target)
 546 {
 547 #if USE_CURL
 548         std::ofstream target_file(target.c_str(), std::ios::out | std::ios::binary);
 549
 550         if (!target_file.good()) {
 551                 return false;
 552         }
 553
 554         HTTPFetchRequest fetch_request;
 555         HTTPFetchResult fetch_result;
 556         fetch_request.url = url;
 557         fetch_request.caller = HTTPFETCH_SYNC;
 558         fetch_request.timeout = g_settings->getS32("curl_file_download_timeout");
 559         httpfetch_sync(fetch_request, fetch_result);
 560
 561         if (!fetch_result.succeeded) {
 562                 return false;
 563         }
 564         target_file << fetch_result.data;
 565
 566         return true;
 567 #else
 568         return false;
 569 #endif
 570 }
 571
 572 /******************************************************************************/
 573 void GUIEngine::setTopleftText(std::string append)
 574 {
 575         std::wstring toset = narrow_to_wide(std::string(PROJECT_NAME " ") +
 576                         g_version_hash);
 577
 578         if (append != "")
 579         {
 580                 toset += L" / ";
 581                 toset += narrow_to_wide(append);
 582         }
 583
 584         m_irr_toplefttext->setText(toset.c_str());
 585
 586         updateTopLeftTextSize();
 587 }
 588
 589 /******************************************************************************/
 590 void GUIEngine::updateTopLeftTextSize()
 591 {
 592         std::wstring text = m_irr_toplefttext->getText();
 593
 594         core::rect<s32> rect(0, 0, g_fontengine->getTextWidth(text), g_fontengine->getTextHeight());
 595                 rect += v2s32(4, 0);
 596
 597         m_irr_toplefttext->remove();
 598         m_irr_toplefttext =
 599                 m_device->getGUIEnvironment()->addStaticText(text.c_str(),
 600                 rect,false,true,0,-1);
 601 }
 602
 603 /******************************************************************************/
 604 s32 GUIEngine::playSound(SimpleSoundSpec spec, bool looped)
 605 {
 606         s32 handle = m_sound_manager->playSound(spec, looped);
 607         return handle;
 608 }
 609
 610 /******************************************************************************/
 611 void GUIEngine::stopSound(s32 handle)
 612 {
 613         m_sound_manager->stopSound(handle);
 614 }
 615
 616 /******************************************************************************/
 617 unsigned int GUIEngine::queueAsync(std::string serialized_func,
 618                 std::string serialized_params)
 619 {
 620         return m_script->queueAsync(serialized_func, serialized_params);
 621 }
 622