src/drawscene.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2014 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 "drawscene.h"
  21 #include "main.h" // for g_settings
  22 #include "settings.h"
  23 #include "clouds.h"
  24 #include "clientmap.h"
  25 #include "util/timetaker.h"
  26
  27 typedef enum {
  28         LEFT = -1,
  29         RIGHT = 1,
  30         EYECOUNT = 2
  31 } paralax_sign;
  32
  33
  34 void draw_selectionbox(video::IVideoDriver* driver, Hud& hud,
  35                 std::vector<aabb3f>& hilightboxes, bool show_hud)
  36 {
  37         static const s16 selectionbox_width = rangelim(g_settings->getS16("selectionbox_width"), 1, 5);
  38
  39         if (!show_hud)
  40                 return;
  41
  42         video::SMaterial oldmaterial = driver->getMaterial2D();
  43         video::SMaterial m;
  44         m.Thickness = selectionbox_width;
  45         m.Lighting = false;
  46         driver->setMaterial(m);
  47         hud.drawSelectionBoxes(hilightboxes);
  48         driver->setMaterial(oldmaterial);
  49 }
  50
  51 void draw_anaglyph_3d_mode(Camera& camera, bool show_hud, Hud& hud,
  52                 std::vector<aabb3f> hilightboxes, video::IVideoDriver* driver,
  53                 scene::ISceneManager* smgr, bool draw_wield_tool, Client& client,
  54                 gui::IGUIEnvironment* guienv )
  55 {
  56
  57         /* preserve old setup*/
  58         irr::core::vector3df oldPosition = camera.getCameraNode()->getPosition();
  59         irr::core::vector3df oldTarget   = camera.getCameraNode()->getTarget();
  60
  61         irr::core::matrix4 startMatrix =
  62                         camera.getCameraNode()->getAbsoluteTransformation();
  63         irr::core::vector3df focusPoint = (camera.getCameraNode()->getTarget()
  64                         - camera.getCameraNode()->getAbsolutePosition()).setLength(1)
  65                         + camera.getCameraNode()->getAbsolutePosition();
  66
  67
  68         //Left eye...
  69         irr::core::vector3df leftEye;
  70         irr::core::matrix4 leftMove;
  71         leftMove.setTranslation(
  72                         irr::core::vector3df(-g_settings->getFloat("3d_paralax_strength"),
  73                                         0.0f, 0.0f));
  74         leftEye = (startMatrix * leftMove).getTranslation();
  75
  76         //clear the depth buffer, and color
  77         driver->beginScene( true, true, irr::video::SColor(0, 200, 200, 255));
  78         driver->getOverrideMaterial().Material.ColorMask = irr::video::ECP_RED;
  79         driver->getOverrideMaterial().EnableFlags = irr::video::EMF_COLOR_MASK;
  80         driver->getOverrideMaterial().EnablePasses = irr::scene::ESNRP_SKY_BOX
  81                         + irr::scene::ESNRP_SOLID + irr::scene::ESNRP_TRANSPARENT
  82                         + irr::scene::ESNRP_TRANSPARENT_EFFECT + irr::scene::ESNRP_SHADOW;
  83         camera.getCameraNode()->setPosition(leftEye);
  84         camera.getCameraNode()->setTarget(focusPoint);
  85         smgr->drawAll();
  86         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
  87         if (show_hud)
  88         {
  89                 draw_selectionbox(driver, hud, hilightboxes, show_hud);
  90
  91                 if (draw_wield_tool)
  92                         camera.drawWieldedTool(&leftMove);
  93         }
  94
  95         guienv->drawAll();
  96
  97         //Right eye...
  98         irr::core::vector3df rightEye;
  99         irr::core::matrix4 rightMove;
 100         rightMove.setTranslation(
 101                         irr::core::vector3df(g_settings->getFloat("3d_paralax_strength"),
 102                                         0.0f, 0.0f));
 103         rightEye = (startMatrix * rightMove).getTranslation();
 104
 105         //clear the depth buffer
 106         driver->clearZBuffer();
 107         driver->getOverrideMaterial().Material.ColorMask = irr::video::ECP_GREEN
 108                         + irr::video::ECP_BLUE;
 109         driver->getOverrideMaterial().EnableFlags = irr::video::EMF_COLOR_MASK;
 110         driver->getOverrideMaterial().EnablePasses = irr::scene::ESNRP_SKY_BOX
 111                         + irr::scene::ESNRP_SOLID + irr::scene::ESNRP_TRANSPARENT
 112                         + irr::scene::ESNRP_TRANSPARENT_EFFECT + irr::scene::ESNRP_SHADOW;
 113         camera.getCameraNode()->setPosition(rightEye);
 114         camera.getCameraNode()->setTarget(focusPoint);
 115         smgr->drawAll();
 116         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 117         if (show_hud)
 118         {
 119                 draw_selectionbox(driver, hud, hilightboxes, show_hud);
 120
 121                 if (draw_wield_tool)
 122                         camera.drawWieldedTool(&rightMove);
 123         }
 124
 125         guienv->drawAll();
 126
 127         driver->getOverrideMaterial().Material.ColorMask = irr::video::ECP_ALL;
 128         driver->getOverrideMaterial().EnableFlags = 0;
 129         driver->getOverrideMaterial().EnablePasses = 0;
 130         camera.getCameraNode()->setPosition(oldPosition);
 131         camera.getCameraNode()->setTarget(oldTarget);
 132 }
 133
 134 void init_texture(video::IVideoDriver* driver, const v2u32& screensize,
 135                 video::ITexture** texture)
 136 {
 137         if (*texture != NULL)
 138         {
 139                 driver->removeTexture(*texture);
 140         }
 141         *texture = driver->addRenderTargetTexture(
 142                         core::dimension2d<u32>(screensize.X, screensize.Y));
 143 }
 144
 145 video::ITexture* draw_image(const v2u32& screensize,
 146                 paralax_sign psign, const irr::core::matrix4& startMatrix,
 147                 const irr::core::vector3df& focusPoint, bool show_hud,
 148                 video::IVideoDriver* driver, Camera& camera, scene::ISceneManager* smgr,
 149                 Hud& hud, std::vector<aabb3f>& hilightboxes,
 150                 bool draw_wield_tool, Client& client, gui::IGUIEnvironment* guienv,
 151                 video::SColor skycolor )
 152 {
 153         static video::ITexture* images[2] = { NULL, NULL };
 154         static v2u32 last_screensize = v2u32(0,0);
 155
 156         video::ITexture* image = NULL;
 157
 158         if (screensize != last_screensize) {
 159                 init_texture(driver, screensize, &images[1]);
 160                 image = images[1];
 161                 init_texture(driver, screensize, &images[0]);
 162                 image = images[0];
 163                 last_screensize = screensize;
 164         }
 165
 166         driver->setRenderTarget(image, true, true,
 167                         irr::video::SColor(255,
 168                                         skycolor.getRed(), skycolor.getGreen(), skycolor.getBlue()));
 169
 170         irr::core::vector3df eye_pos;
 171         irr::core::matrix4 movement;
 172         movement.setTranslation(
 173                         irr::core::vector3df((int) psign *
 174                                         g_settings->getFloat("3d_paralax_strength"), 0.0f, 0.0f));
 175         eye_pos = (startMatrix * movement).getTranslation();
 176
 177         //clear the depth buffer
 178         driver->clearZBuffer();
 179         camera.getCameraNode()->setPosition(eye_pos);
 180         camera.getCameraNode()->setTarget(focusPoint);
 181         smgr->drawAll();
 182
 183         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 184
 185         if (show_hud)
 186         {
 187                 draw_selectionbox(driver, hud, hilightboxes, show_hud);
 188
 189                 if (draw_wield_tool)
 190                         camera.drawWieldedTool(&movement);
 191         }
 192
 193         guienv->drawAll();
 194
 195         /* switch back to real renderer */
 196         driver->setRenderTarget(0, true, true,
 197                         irr::video::SColor(0,
 198                                         skycolor.getRed(), skycolor.getGreen(), skycolor.getBlue()));
 199
 200         return image;
 201 }
 202
 203 video::ITexture*  draw_hud(video::IVideoDriver* driver, const v2u32& screensize,
 204                 bool show_hud, Hud& hud, Client& client, bool draw_crosshair,
 205                 video::SColor skycolor, gui::IGUIEnvironment* guienv, Camera& camera )
 206 {
 207         static video::ITexture* image = NULL;
 208         init_texture(driver, screensize, &image);
 209         driver->setRenderTarget(image, true, true,
 210                         irr::video::SColor(255,0,0,0));
 211
 212         if (show_hud)
 213         {
 214                 if (draw_crosshair)
 215                         hud.drawCrosshair();
 216                 hud.drawHotbar(client.getPlayerItem());
 217                 hud.drawLuaElements(camera.getOffset());
 218
 219                 guienv->drawAll();
 220         }
 221
 222         driver->setRenderTarget(0, true, true,
 223                         irr::video::SColor(0,
 224                                         skycolor.getRed(), skycolor.getGreen(), skycolor.getBlue()));
 225
 226         return image;
 227 }
 228
 229 void draw_interlaced_3d_mode(Camera& camera, bool show_hud,
 230                 Hud& hud, std::vector<aabb3f> hilightboxes, video::IVideoDriver* driver,
 231                 scene::ISceneManager* smgr, const v2u32& screensize,
 232                 bool draw_wield_tool, Client& client, gui::IGUIEnvironment* guienv,
 233                 video::SColor skycolor )
 234 {
 235         /* save current info */
 236         irr::core::vector3df oldPosition = camera.getCameraNode()->getPosition();
 237         irr::core::vector3df oldTarget = camera.getCameraNode()->getTarget();
 238         irr::core::matrix4 startMatrix =
 239                         camera.getCameraNode()->getAbsoluteTransformation();
 240         irr::core::vector3df focusPoint = (camera.getCameraNode()->getTarget()
 241                         - camera.getCameraNode()->getAbsolutePosition()).setLength(1)
 242                         + camera.getCameraNode()->getAbsolutePosition();
 243
 244         /* create left view */
 245         video::ITexture* left_image = draw_image(screensize, LEFT, startMatrix,
 246                         focusPoint, show_hud, driver, camera, smgr, hud, hilightboxes,
 247                         draw_wield_tool, client, guienv, skycolor);
 248
 249         //Right eye...
 250         irr::core::vector3df rightEye;
 251         irr::core::matrix4 rightMove;
 252         rightMove.setTranslation(
 253                         irr::core::vector3df(g_settings->getFloat("3d_paralax_strength"),
 254                                         0.0f, 0.0f));
 255         rightEye = (startMatrix * rightMove).getTranslation();
 256
 257         //clear the depth buffer
 258         driver->clearZBuffer();
 259         camera.getCameraNode()->setPosition(rightEye);
 260         camera.getCameraNode()->setTarget(focusPoint);
 261         smgr->drawAll();
 262
 263         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 264
 265         if (show_hud)
 266         {
 267                 draw_selectionbox(driver, hud, hilightboxes, show_hud);
 268
 269                 if(draw_wield_tool)
 270                         camera.drawWieldedTool(&rightMove);
 271         }
 272         guienv->drawAll();
 273
 274         for (unsigned int i = 0; i < screensize.Y; i+=2 ) {
 275 #if (IRRLICHT_VERSION_MAJOR >= 1) && (IRRLICHT_VERSION_MINOR >= 8)
 276                 driver->draw2DImage(left_image, irr::core::position2d<s32>(0, i),
 277 #else
 278                 driver->draw2DImage(left_image, irr::core::position2d<s32>(0, screensize.Y-i),
 279 #endif
 280                                 irr::core::rect<s32>(0, i,screensize.X, i+1), 0,
 281                                 irr::video::SColor(255, 255, 255, 255),
 282                                 false);
 283         }
 284
 285         /* cleanup */
 286         camera.getCameraNode()->setPosition(oldPosition);
 287         camera.getCameraNode()->setTarget(oldTarget);
 288 }
 289
 290 void draw_sidebyside_3d_mode(Camera& camera, bool show_hud,
 291                 Hud& hud, std::vector<aabb3f> hilightboxes, video::IVideoDriver* driver,
 292                 scene::ISceneManager* smgr, const v2u32& screensize,
 293                 bool draw_wield_tool, Client& client, gui::IGUIEnvironment* guienv,
 294                 video::SColor skycolor )
 295 {
 296         /* save current info */
 297         irr::core::vector3df oldPosition = camera.getCameraNode()->getPosition();
 298         irr::core::vector3df oldTarget = camera.getCameraNode()->getTarget();
 299         irr::core::matrix4 startMatrix =
 300                         camera.getCameraNode()->getAbsoluteTransformation();
 301         irr::core::vector3df focusPoint = (camera.getCameraNode()->getTarget()
 302                         - camera.getCameraNode()->getAbsolutePosition()).setLength(1)
 303                         + camera.getCameraNode()->getAbsolutePosition();
 304
 305         /* create left view */
 306         video::ITexture* left_image = draw_image(screensize, LEFT, startMatrix,
 307                         focusPoint, show_hud, driver, camera, smgr, hud, hilightboxes,
 308                         draw_wield_tool, client, guienv, skycolor);
 309
 310         /* create right view */
 311         video::ITexture* right_image = draw_image(screensize, RIGHT, startMatrix,
 312                         focusPoint, show_hud, driver, camera, smgr, hud, hilightboxes,
 313                         draw_wield_tool, client, guienv, skycolor);
 314
 315         /* create hud overlay */
 316         video::ITexture* hudtexture = draw_hud(driver, screensize, show_hud, hud, client,
 317                         false, skycolor, guienv, camera );
 318         driver->makeColorKeyTexture(hudtexture, irr::video::SColor(255, 0, 0, 0));
 319         //makeColorKeyTexture mirrors texture so we do it twice to get it right again
 320         driver->makeColorKeyTexture(hudtexture, irr::video::SColor(255, 0, 0, 0));
 321
 322         driver->draw2DImage(left_image,
 323                         irr::core::rect<s32>(0, 0, screensize.X/2, screensize.Y),
 324                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, false);
 325
 326         driver->draw2DImage(hudtexture,
 327                         irr::core::rect<s32>(0, 0, screensize.X/2, screensize.Y),
 328                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, true);
 329
 330         driver->draw2DImage(right_image,
 331                         irr::core::rect<s32>(screensize.X/2, 0, screensize.X, screensize.Y),
 332                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, false);
 333
 334         driver->draw2DImage(hudtexture,
 335                         irr::core::rect<s32>(screensize.X/2, 0, screensize.X, screensize.Y),
 336                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, true);
 337
 338         left_image = NULL;
 339         right_image = NULL;
 340
 341         /* cleanup */
 342         camera.getCameraNode()->setPosition(oldPosition);
 343         camera.getCameraNode()->setTarget(oldTarget);
 344 }
 345
 346 void draw_top_bottom_3d_mode(Camera& camera, bool show_hud,
 347                 Hud& hud, std::vector<aabb3f> hilightboxes, video::IVideoDriver* driver,
 348                 scene::ISceneManager* smgr, const v2u32& screensize,
 349                 bool draw_wield_tool, Client& client, gui::IGUIEnvironment* guienv,
 350                 video::SColor skycolor )
 351 {
 352         /* save current info */
 353         irr::core::vector3df oldPosition = camera.getCameraNode()->getPosition();
 354         irr::core::vector3df oldTarget = camera.getCameraNode()->getTarget();
 355         irr::core::matrix4 startMatrix =
 356                         camera.getCameraNode()->getAbsoluteTransformation();
 357         irr::core::vector3df focusPoint = (camera.getCameraNode()->getTarget()
 358                         - camera.getCameraNode()->getAbsolutePosition()).setLength(1)
 359                         + camera.getCameraNode()->getAbsolutePosition();
 360
 361         /* create left view */
 362         video::ITexture* left_image = draw_image(screensize, LEFT, startMatrix,
 363                         focusPoint, show_hud, driver, camera, smgr, hud, hilightboxes,
 364                         draw_wield_tool, client, guienv, skycolor);
 365
 366         /* create right view */
 367         video::ITexture* right_image = draw_image(screensize, RIGHT, startMatrix,
 368                         focusPoint, show_hud, driver, camera, smgr, hud, hilightboxes,
 369                         draw_wield_tool, client, guienv, skycolor);
 370
 371         /* create hud overlay */
 372         video::ITexture* hudtexture = draw_hud(driver, screensize, show_hud, hud, client,
 373                         false, skycolor, guienv, camera );
 374         driver->makeColorKeyTexture(hudtexture, irr::video::SColor(255, 0, 0, 0));
 375         //makeColorKeyTexture mirrors texture so we do it twice to get it right again
 376         driver->makeColorKeyTexture(hudtexture, irr::video::SColor(255, 0, 0, 0));
 377
 378         driver->draw2DImage(left_image,
 379                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y/2),
 380                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, false);
 381
 382         driver->draw2DImage(hudtexture,
 383                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y/2),
 384                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, true);
 385
 386         driver->draw2DImage(right_image,
 387                         irr::core::rect<s32>(0, screensize.Y/2, screensize.X, screensize.Y),
 388                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, false);
 389
 390         driver->draw2DImage(hudtexture,
 391                         irr::core::rect<s32>(0, screensize.Y/2, screensize.X, screensize.Y),
 392                         irr::core::rect<s32>(0, 0, screensize.X, screensize.Y), 0, 0, true);
 393
 394         left_image = NULL;
 395         right_image = NULL;
 396
 397         /* cleanup */
 398         camera.getCameraNode()->setPosition(oldPosition);
 399         camera.getCameraNode()->setTarget(oldTarget);
 400 }
 401
 402 void draw_plain(Camera& camera, bool show_hud, Hud& hud,
 403                 std::vector<aabb3f> hilightboxes, video::IVideoDriver* driver,
 404                 bool draw_wield_tool, Client& client, gui::IGUIEnvironment* guienv)
 405 {
 406         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 407
 408         draw_selectionbox(driver, hud, hilightboxes, show_hud);
 409
 410         if(draw_wield_tool)
 411                 camera.drawWieldedTool();
 412 }
 413
 414 void draw_scene(video::IVideoDriver* driver, scene::ISceneManager* smgr,
 415                 Camera& camera, Client& client, LocalPlayer* player, Hud& hud,
 416                 gui::IGUIEnvironment* guienv, std::vector<aabb3f> hilightboxes,
 417                 const v2u32& screensize, video::SColor skycolor, bool show_hud)
 418 {
 419         //TODO check if usefull
 420         u32 scenetime = 0;
 421         {
 422                 TimeTaker timer("smgr");
 423
 424                 bool draw_wield_tool = (show_hud &&
 425                                 (player->hud_flags & HUD_FLAG_WIELDITEM_VISIBLE) &&
 426                                 camera.getCameraMode() < CAMERA_MODE_THIRD );
 427
 428                 bool draw_crosshair = ((player->hud_flags & HUD_FLAG_CROSSHAIR_VISIBLE) &&
 429                                 (camera.getCameraMode() != CAMERA_MODE_THIRD_FRONT));
 430
 431 #ifdef HAVE_TOUCHSCREENGUI
 432                 try {
 433                         draw_crosshair = !g_settings->getBool("touchtarget");
 434                 }
 435                 catch(SettingNotFoundException) {}
 436 #endif
 437
 438                 std::string draw_mode = g_settings->get("3d_mode");
 439
 440                 smgr->drawAll();
 441
 442                 if (draw_mode == "anaglyph")
 443                 {
 444                         draw_anaglyph_3d_mode(camera, show_hud, hud, hilightboxes, driver,
 445                                         smgr, draw_wield_tool, client, guienv);
 446                         draw_crosshair = false;
 447                 }
 448                 else if (draw_mode == "interlaced")
 449                 {
 450                         draw_interlaced_3d_mode(camera, show_hud, hud, hilightboxes, driver,
 451                                         smgr, screensize, draw_wield_tool, client, guienv, skycolor);
 452                         draw_crosshair = false;
 453                 }
 454                 else if (draw_mode == "sidebyside")
 455                 {
 456                         draw_sidebyside_3d_mode(camera, show_hud, hud, hilightboxes, driver,
 457                                         smgr, screensize, draw_wield_tool, client, guienv, skycolor);
 458                         show_hud = false;
 459                 }
 460                 else if (draw_mode == "topbottom")
 461                 {
 462                         draw_top_bottom_3d_mode(camera, show_hud, hud, hilightboxes, driver,
 463                                         smgr, screensize, draw_wield_tool, client, guienv, skycolor);
 464                         show_hud = false;
 465                 }
 466                 else {
 467                         draw_plain(camera, show_hud, hud, hilightboxes, driver,
 468                                         draw_wield_tool, client, guienv);
 469                 }
 470
 471                 /*
 472                         Post effects
 473                 */
 474                 {
 475                         client.getEnv().getClientMap().renderPostFx(camera.getCameraMode());
 476                 }
 477
 478                 //TODO how to make those 3d too
 479                 if (show_hud)
 480                 {
 481                         if (draw_crosshair)
 482                                 hud.drawCrosshair();
 483                         hud.drawHotbar(client.getPlayerItem());
 484                         hud.drawLuaElements(camera.getOffset());
 485                 }
 486
 487                 guienv->drawAll();
 488
 489                 scenetime = timer.stop(true);
 490         }
 491
 492 }
 493
 494 /*
 495         Draws a screen with a single text on it.
 496         Text will be removed when the screen is drawn the next time.
 497         Additionally, a progressbar can be drawn when percent is set between 0 and 100.
 498 */
 499 /*gui::IGUIStaticText **/
 500 void draw_load_screen(const std::wstring &text, IrrlichtDevice* device,
 501                 gui::IGUIEnvironment* guienv, gui::IGUIFont* font, float dtime,
 502                 int percent, bool clouds )
 503 {
 504         video::IVideoDriver* driver = device->getVideoDriver();
 505         v2u32 screensize = driver->getScreenSize();
 506         const wchar_t *loadingtext = text.c_str();
 507         core::vector2d<u32> textsize_u = font->getDimension(loadingtext);
 508         core::vector2d<s32> textsize(textsize_u.X,textsize_u.Y);
 509         core::vector2d<s32> center(screensize.X/2, screensize.Y/2);
 510         core::rect<s32> textrect(center - textsize/2, center + textsize/2);
 511
 512         gui::IGUIStaticText *guitext = guienv->addStaticText(
 513                         loadingtext, textrect, false, false);
 514         guitext->setTextAlignment(gui::EGUIA_CENTER, gui::EGUIA_UPPERLEFT);
 515
 516         bool cloud_menu_background = clouds && g_settings->getBool("menu_clouds");
 517         if (cloud_menu_background)
 518         {
 519                 g_menuclouds->step(dtime*3);
 520                 g_menuclouds->render();
 521                 driver->beginScene(true, true, video::SColor(255,140,186,250));
 522                 g_menucloudsmgr->drawAll();
 523         }
 524         else
 525                 driver->beginScene(true, true, video::SColor(255,0,0,0));
 526
 527         if (percent >= 0 && percent <= 100) // draw progress bar
 528         {
 529                 core::vector2d<s32> barsize(256,32);
 530                 core::rect<s32> barrect(center-barsize/2, center+barsize/2);
 531                 driver->draw2DRectangle(video::SColor(255,255,255,255),barrect, NULL); // border
 532                 driver->draw2DRectangle(video::SColor(255,64,64,64), core::rect<s32> (
 533                                 barrect.UpperLeftCorner+1,
 534                                 barrect.LowerRightCorner-1), NULL); // black inside the bar
 535                 driver->draw2DRectangle(video::SColor(255,128,128,128), core::rect<s32> (
 536                                 barrect.UpperLeftCorner+1,
 537                                 core::vector2d<s32>(
 538                                         barrect.LowerRightCorner.X-(barsize.X-1)+percent*(barsize.X-2)/100,
 539                                         barrect.LowerRightCorner.Y-1)), NULL); // the actual progress
 540         }
 541         guienv->drawAll();
 542         driver->endScene();
 543
 544         guitext->remove();
 545
 546         //return guitext;
 547 }