src/game.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 "game.h"
  21 #include "irrlichttypes_extrabloated.h"
  22 #include <IGUICheckBox.h>
  23 #include <IGUIEditBox.h>
  24 #include <IGUIButton.h>
  25 #include <IGUIStaticText.h>
  26 #include <IGUIFont.h>
  27 #include <IMaterialRendererServices.h>
  28 #include "IMeshCache.h"
  29 #include "client.h"
  30 #include "server.h"
  31 #include "guiPasswordChange.h"
  32 #include "guiVolumeChange.h"
  33 #include "guiKeyChangeMenu.h"
  34 #include "guiFormSpecMenu.h"
  35 #include "tool.h"
  36 #include "guiChatConsole.h"
  37 #include "config.h"
  38 #include "version.h"
  39 #include "clouds.h"
  40 #include "particles.h"
  41 #include "camera.h"
  42 #include "mapblock.h"
  43 #include "settings.h"
  44 #include "profiler.h"
  45 #include "mainmenumanager.h"
  46 #include "gettext.h"
  47 #include "log.h"
  48 #include "filesys.h"
  49 // Needed for determining pointing to nodes
  50 #include "nodedef.h"
  51 #include "nodemetadata.h"
  52 #include "main.h" // For g_settings
  53 #include "itemdef.h"
  54 #include "tile.h" // For TextureSource
  55 #include "shader.h" // For ShaderSource
  56 #include "logoutputbuffer.h"
  57 #include "subgame.h"
  58 #include "quicktune_shortcutter.h"
  59 #include "clientmap.h"
  60 #include "hud.h"
  61 #include "sky.h"
  62 #include "sound.h"
  63 #if USE_SOUND
  64 #include "sound_openal.h"
  65 #endif
  66 #include "event_manager.h"
  67 #include <iomanip>
  68 #include <list>
  69 #include "util/directiontables.h"
  70 #include "util/pointedthing.h"
  71 #include "drawscene.h"
  72 #include "content_cao.h"
  73 #include "fontengine.h"
  74
  75 #ifdef HAVE_TOUCHSCREENGUI
  76 #include "touchscreengui.h"
  77 #endif
  78
  79 /*
  80         Text input system
  81 */
  82
  83 struct TextDestNodeMetadata : public TextDest {
  84         TextDestNodeMetadata(v3s16 p, Client *client)
  85         {
  86                 m_p = p;
  87                 m_client = client;
  88         }
  89         // This is deprecated I guess? -celeron55
  90         void gotText(std::wstring text)
  91         {
  92                 std::string ntext = wide_to_narrow(text);
  93                 infostream << "Submitting 'text' field of node at (" << m_p.X << ","
  94                            << m_p.Y << "," << m_p.Z << "): " << ntext << std::endl;
  95                 std::map<std::string, std::string> fields;
  96                 fields["text"] = ntext;
  97                 m_client->sendNodemetaFields(m_p, "", fields);
  98         }
  99         void gotText(std::map<std::string, std::string> fields)
 100         {
 101                 m_client->sendNodemetaFields(m_p, "", fields);
 102         }
 103
 104         v3s16 m_p;
 105         Client *m_client;
 106 };
 107
 108 struct TextDestPlayerInventory : public TextDest {
 109         TextDestPlayerInventory(Client *client)
 110         {
 111                 m_client = client;
 112                 m_formname = "";
 113         }
 114         TextDestPlayerInventory(Client *client, std::string formname)
 115         {
 116                 m_client = client;
 117                 m_formname = formname;
 118         }
 119         void gotText(std::map<std::string, std::string> fields)
 120         {
 121                 m_client->sendInventoryFields(m_formname, fields);
 122         }
 123
 124         Client *m_client;
 125 };
 126
 127 struct LocalFormspecHandler : public TextDest {
 128         LocalFormspecHandler();
 129         LocalFormspecHandler(std::string formname) :
 130                 m_client(0)
 131         {
 132                 m_formname = formname;
 133         }
 134
 135         LocalFormspecHandler(std::string formname, Client *client) :
 136                 m_client(client)
 137         {
 138                 m_formname = formname;
 139         }
 140
 141         void gotText(std::wstring message)
 142         {
 143                 errorstream << "LocalFormspecHandler::gotText old style message received" << std::endl;
 144         }
 145
 146         void gotText(std::map<std::string, std::string> fields)
 147         {
 148                 if (m_formname == "MT_PAUSE_MENU") {
 149                         if (fields.find("btn_sound") != fields.end()) {
 150                                 g_gamecallback->changeVolume();
 151                                 return;
 152                         }
 153
 154                         if (fields.find("btn_key_config") != fields.end()) {
 155                                 g_gamecallback->keyConfig();
 156                                 return;
 157                         }
 158
 159                         if (fields.find("btn_exit_menu") != fields.end()) {
 160                                 g_gamecallback->disconnect();
 161                                 return;
 162                         }
 163
 164                         if (fields.find("btn_exit_os") != fields.end()) {
 165                                 g_gamecallback->exitToOS();
 166                                 return;
 167                         }
 168
 169                         if (fields.find("btn_change_password") != fields.end()) {
 170                                 g_gamecallback->changePassword();
 171                                 return;
 172                         }
 173
 174                         if (fields.find("quit") != fields.end()) {
 175                                 return;
 176                         }
 177
 178                         if (fields.find("btn_continue") != fields.end()) {
 179                                 return;
 180                         }
 181                 }
 182
 183                 if (m_formname == "MT_CHAT_MENU") {
 184                         assert(m_client != 0);
 185
 186                         if ((fields.find("btn_send") != fields.end()) ||
 187                                         (fields.find("quit") != fields.end())) {
 188                                 if (fields.find("f_text") != fields.end()) {
 189                                         m_client->typeChatMessage(narrow_to_wide(fields["f_text"]));
 190                                 }
 191
 192                                 return;
 193                         }
 194                 }
 195
 196                 if (m_formname == "MT_DEATH_SCREEN") {
 197                         assert(m_client != 0);
 198
 199                         if ((fields.find("btn_respawn") != fields.end())) {
 200                                 m_client->sendRespawn();
 201                                 return;
 202                         }
 203
 204                         if (fields.find("quit") != fields.end()) {
 205                                 m_client->sendRespawn();
 206                                 return;
 207                         }
 208                 }
 209
 210                 // don't show error message for unhandled cursor keys
 211                 if ((fields.find("key_up") != fields.end()) ||
 212                                 (fields.find("key_down") != fields.end()) ||
 213                                 (fields.find("key_left") != fields.end()) ||
 214                                 (fields.find("key_right") != fields.end())) {
 215                         return;
 216                 }
 217
 218                 errorstream << "LocalFormspecHandler::gotText unhandled >" << m_formname << "< event" << std::endl;
 219                 int i = 0;
 220
 221                 for (std::map<std::string, std::string>::iterator iter = fields.begin();
 222                                 iter != fields.end(); iter++) {
 223                         errorstream << "\t" << i << ": " << iter->first << "=" << iter->second << std::endl;
 224                         i++;
 225                 }
 226         }
 227
 228         Client *m_client;
 229 };
 230
 231 /* Form update callback */
 232
 233 class NodeMetadataFormSource: public IFormSource
 234 {
 235 public:
 236         NodeMetadataFormSource(ClientMap *map, v3s16 p):
 237                 m_map(map),
 238                 m_p(p)
 239         {
 240         }
 241         std::string getForm()
 242         {
 243                 NodeMetadata *meta = m_map->getNodeMetadata(m_p);
 244
 245                 if (!meta)
 246                         return "";
 247
 248                 return meta->getString("formspec");
 249         }
 250         std::string resolveText(std::string str)
 251         {
 252                 NodeMetadata *meta = m_map->getNodeMetadata(m_p);
 253
 254                 if (!meta)
 255                         return str;
 256
 257                 return meta->resolveString(str);
 258         }
 259
 260         ClientMap *m_map;
 261         v3s16 m_p;
 262 };
 263
 264 class PlayerInventoryFormSource: public IFormSource
 265 {
 266 public:
 267         PlayerInventoryFormSource(Client *client):
 268                 m_client(client)
 269         {
 270         }
 271         std::string getForm()
 272         {
 273                 LocalPlayer *player = m_client->getEnv().getLocalPlayer();
 274                 return player->inventory_formspec;
 275         }
 276
 277         Client *m_client;
 278 };
 279
 280 /*
 281         Check if a node is pointable
 282 */
 283 inline bool isPointableNode(const MapNode &n,
 284                             Client *client, bool liquids_pointable)
 285 {
 286         const ContentFeatures &features = client->getNodeDefManager()->get(n);
 287         return features.pointable ||
 288                (liquids_pointable && features.isLiquid());
 289 }
 290
 291 /*
 292         Find what the player is pointing at
 293 */
 294 PointedThing getPointedThing(Client *client, v3f player_position,
 295                 v3f camera_direction, v3f camera_position, core::line3d<f32> shootline,
 296                 f32 d, bool liquids_pointable, bool look_for_object, v3s16 camera_offset,
 297                 std::vector<aabb3f> &hilightboxes, ClientActiveObject *&selected_object)
 298 {
 299         PointedThing result;
 300
 301         hilightboxes.clear();
 302         selected_object = NULL;
 303
 304         INodeDefManager *nodedef = client->getNodeDefManager();
 305         ClientMap &map = client->getEnv().getClientMap();
 306
 307         f32 mindistance = BS * 1001;
 308
 309         // First try to find a pointed at active object
 310         if (look_for_object) {
 311                 selected_object = client->getSelectedActiveObject(d * BS,
 312                                   camera_position, shootline);
 313
 314                 if (selected_object != NULL) {
 315                         if (selected_object->doShowSelectionBox()) {
 316                                 aabb3f *selection_box = selected_object->getSelectionBox();
 317                                 // Box should exist because object was
 318                                 // returned in the first place
 319                                 assert(selection_box);
 320
 321                                 v3f pos = selected_object->getPosition();
 322                                 hilightboxes.push_back(aabb3f(
 323                                                                selection_box->MinEdge + pos - intToFloat(camera_offset, BS),
 324                                                                selection_box->MaxEdge + pos - intToFloat(camera_offset, BS)));
 325                         }
 326
 327                         mindistance = (selected_object->getPosition() - camera_position).getLength();
 328
 329                         result.type = POINTEDTHING_OBJECT;
 330                         result.object_id = selected_object->getId();
 331                 }
 332         }
 333
 334         // That didn't work, try to find a pointed at node
 335
 336
 337         v3s16 pos_i = floatToInt(player_position, BS);
 338
 339         /*infostream<<"pos_i=("<<pos_i.X<<","<<pos_i.Y<<","<<pos_i.Z<<")"
 340                         <<std::endl;*/
 341
 342         s16 a = d;
 343         s16 ystart = pos_i.Y + 0 - (camera_direction.Y < 0 ? a : 1);
 344         s16 zstart = pos_i.Z - (camera_direction.Z < 0 ? a : 1);
 345         s16 xstart = pos_i.X - (camera_direction.X < 0 ? a : 1);
 346         s16 yend = pos_i.Y + 1 + (camera_direction.Y > 0 ? a : 1);
 347         s16 zend = pos_i.Z + (camera_direction.Z > 0 ? a : 1);
 348         s16 xend = pos_i.X + (camera_direction.X > 0 ? a : 1);
 349
 350         // Prevent signed number overflow
 351         if (yend == 32767)
 352                 yend = 32766;
 353
 354         if (zend == 32767)
 355                 zend = 32766;
 356
 357         if (xend == 32767)
 358                 xend = 32766;
 359
 360         for (s16 y = ystart; y <= yend; y++)
 361                 for (s16 z = zstart; z <= zend; z++)
 362                         for (s16 x = xstart; x <= xend; x++) {
 363                                 MapNode n;
 364                                 bool is_valid_position;
 365
 366                                 n = map.getNodeNoEx(v3s16(x, y, z), &is_valid_position);
 367                                 if (!is_valid_position)
 368                                         continue;
 369
 370                                 if (!isPointableNode(n, client, liquids_pointable))
 371                                         continue;
 372
 373                                 std::vector<aabb3f> boxes = n.getSelectionBoxes(nodedef);
 374
 375                                 v3s16 np(x, y, z);
 376                                 v3f npf = intToFloat(np, BS);
 377
 378                                 for (std::vector<aabb3f>::const_iterator
 379                                                 i = boxes.begin();
 380                                                 i != boxes.end(); i++) {
 381                                         aabb3f box = *i;
 382                                         box.MinEdge += npf;
 383                                         box.MaxEdge += npf;
 384
 385                                         for (u16 j = 0; j < 6; j++) {
 386                                                 v3s16 facedir = g_6dirs[j];
 387                                                 aabb3f facebox = box;
 388
 389                                                 f32 d = 0.001 * BS;
 390
 391                                                 if (facedir.X > 0)
 392                                                         facebox.MinEdge.X = facebox.MaxEdge.X - d;
 393                                                 else if (facedir.X < 0)
 394                                                         facebox.MaxEdge.X = facebox.MinEdge.X + d;
 395                                                 else if (facedir.Y > 0)
 396                                                         facebox.MinEdge.Y = facebox.MaxEdge.Y - d;
 397                                                 else if (facedir.Y < 0)
 398                                                         facebox.MaxEdge.Y = facebox.MinEdge.Y + d;
 399                                                 else if (facedir.Z > 0)
 400                                                         facebox.MinEdge.Z = facebox.MaxEdge.Z - d;
 401                                                 else if (facedir.Z < 0)
 402                                                         facebox.MaxEdge.Z = facebox.MinEdge.Z + d;
 403
 404                                                 v3f centerpoint = facebox.getCenter();
 405                                                 f32 distance = (centerpoint - camera_position).getLength();
 406
 407                                                 if (distance >= mindistance)
 408                                                         continue;
 409
 410                                                 if (!facebox.intersectsWithLine(shootline))
 411                                                         continue;
 412
 413                                                 v3s16 np_above = np + facedir;
 414
 415                                                 result.type = POINTEDTHING_NODE;
 416                                                 result.node_undersurface = np;
 417                                                 result.node_abovesurface = np_above;
 418                                                 mindistance = distance;
 419
 420                                                 hilightboxes.clear();
 421
 422                                                 if (!g_settings->getBool("enable_node_highlighting")) {
 423                                                         for (std::vector<aabb3f>::const_iterator
 424                                                                         i2 = boxes.begin();
 425                                                                         i2 != boxes.end(); i2++) {
 426                                                                 aabb3f box = *i2;
 427                                                                 box.MinEdge += npf + v3f(-d, -d, -d) - intToFloat(camera_offset, BS);
 428                                                                 box.MaxEdge += npf + v3f(d, d, d) - intToFloat(camera_offset, BS);
 429                                                                 hilightboxes.push_back(box);
 430                                                         }
 431                                                 }
 432                                         }
 433                                 }
 434                         } // for coords
 435
 436         return result;
 437 }
 438
 439 /* Profiler display */
 440
 441 void update_profiler_gui(gui::IGUIStaticText *guitext_profiler, FontEngine *fe,
 442                 u32 show_profiler, u32 show_profiler_max, s32 screen_height)
 443 {
 444         if (show_profiler == 0) {
 445                 guitext_profiler->setVisible(false);
 446         } else {
 447
 448                 std::ostringstream os(std::ios_base::binary);
 449                 g_profiler->printPage(os, show_profiler, show_profiler_max);
 450                 std::wstring text = narrow_to_wide(os.str());
 451                 guitext_profiler->setText(text.c_str());
 452                 guitext_profiler->setVisible(true);
 453
 454                 s32 w = fe->getTextWidth(text.c_str());
 455
 456                 if (w < 400)
 457                         w = 400;
 458
 459                 unsigned text_height = fe->getTextHeight();
 460
 461                 core::position2di upper_left, lower_right;
 462
 463                 upper_left.X  = 6;
 464                 upper_left.Y  = (text_height + 5) * 2;
 465                 lower_right.X = 12 + w;
 466                 lower_right.Y = upper_left.Y + (text_height + 1) * MAX_PROFILER_TEXT_ROWS;
 467
 468                 if (lower_right.Y > screen_height * 2 / 3)
 469                         lower_right.Y = screen_height * 2 / 3;
 470
 471                 core::rect<s32> rect(upper_left, lower_right);
 472
 473                 guitext_profiler->setRelativePosition(rect);
 474                 guitext_profiler->setVisible(true);
 475         }
 476 }
 477
 478 class ProfilerGraph
 479 {
 480 private:
 481         struct Piece {
 482                 Profiler::GraphValues values;
 483         };
 484         struct Meta {
 485                 float min;
 486                 float max;
 487                 video::SColor color;
 488                 Meta(float initial = 0,
 489                         video::SColor color = video::SColor(255, 255, 255, 255)):
 490                         min(initial),
 491                         max(initial),
 492                         color(color)
 493                 {}
 494         };
 495         std::list<Piece> m_log;
 496 public:
 497         u32 m_log_max_size;
 498
 499         ProfilerGraph():
 500                 m_log_max_size(200)
 501         {}
 502
 503         void put(const Profiler::GraphValues &values)
 504         {
 505                 Piece piece;
 506                 piece.values = values;
 507                 m_log.push_back(piece);
 508
 509                 while (m_log.size() > m_log_max_size)
 510                         m_log.erase(m_log.begin());
 511         }
 512
 513         void draw(s32 x_left, s32 y_bottom, video::IVideoDriver *driver,
 514                   gui::IGUIFont *font) const
 515         {
 516                 std::map<std::string, Meta> m_meta;
 517
 518                 for (std::list<Piece>::const_iterator k = m_log.begin();
 519                                 k != m_log.end(); k++) {
 520                         const Piece &piece = *k;
 521
 522                         for (Profiler::GraphValues::const_iterator i = piece.values.begin();
 523                                         i != piece.values.end(); i++) {
 524                                 const std::string &id = i->first;
 525                                 const float &value = i->second;
 526                                 std::map<std::string, Meta>::iterator j =
 527                                         m_meta.find(id);
 528
 529                                 if (j == m_meta.end()) {
 530                                         m_meta[id] = Meta(value);
 531                                         continue;
 532                                 }
 533
 534                                 if (value < j->second.min)
 535                                         j->second.min = value;
 536
 537                                 if (value > j->second.max)
 538                                         j->second.max = value;
 539                         }
 540                 }
 541
 542                 // Assign colors
 543                 static const video::SColor usable_colors[] = {
 544                         video::SColor(255, 255, 100, 100),
 545                         video::SColor(255, 90, 225, 90),
 546                         video::SColor(255, 100, 100, 255),
 547                         video::SColor(255, 255, 150, 50),
 548                         video::SColor(255, 220, 220, 100)
 549                 };
 550                 static const u32 usable_colors_count =
 551                         sizeof(usable_colors) / sizeof(*usable_colors);
 552                 u32 next_color_i = 0;
 553
 554                 for (std::map<std::string, Meta>::iterator i = m_meta.begin();
 555                                 i != m_meta.end(); i++) {
 556                         Meta &meta = i->second;
 557                         video::SColor color(255, 200, 200, 200);
 558
 559                         if (next_color_i < usable_colors_count)
 560                                 color = usable_colors[next_color_i++];
 561
 562                         meta.color = color;
 563                 }
 564
 565                 s32 graphh = 50;
 566                 s32 textx = x_left + m_log_max_size + 15;
 567                 s32 textx2 = textx + 200 - 15;
 568
 569                 // Draw background
 570                 /*{
 571                         u32 num_graphs = m_meta.size();
 572                         core::rect<s32> rect(x_left, y_bottom - num_graphs*graphh,
 573                                         textx2, y_bottom);
 574                         video::SColor bgcolor(120,0,0,0);
 575                         driver->draw2DRectangle(bgcolor, rect, NULL);
 576                 }*/
 577
 578                 s32 meta_i = 0;
 579
 580                 for (std::map<std::string, Meta>::const_iterator i = m_meta.begin();
 581                                 i != m_meta.end(); i++) {
 582                         const std::string &id = i->first;
 583                         const Meta &meta = i->second;
 584                         s32 x = x_left;
 585                         s32 y = y_bottom - meta_i * 50;
 586                         float show_min = meta.min;
 587                         float show_max = meta.max;
 588
 589                         if (show_min >= -0.0001 && show_max >= -0.0001) {
 590                                 if (show_min <= show_max * 0.5)
 591                                         show_min = 0;
 592                         }
 593
 594                         s32 texth = 15;
 595                         char buf[10];
 596                         snprintf(buf, 10, "%.3g", show_max);
 597                         font->draw(narrow_to_wide(buf).c_str(),
 598                                         core::rect<s32>(textx, y - graphh,
 599                                                    textx2, y - graphh + texth),
 600                                         meta.color);
 601                         snprintf(buf, 10, "%.3g", show_min);
 602                         font->draw(narrow_to_wide(buf).c_str(),
 603                                         core::rect<s32>(textx, y - texth,
 604                                                    textx2, y),
 605                                         meta.color);
 606                         font->draw(narrow_to_wide(id).c_str(),
 607                                         core::rect<s32>(textx, y - graphh / 2 - texth / 2,
 608                                                    textx2, y - graphh / 2 + texth / 2),
 609                                         meta.color);
 610                         s32 graph1y = y;
 611                         s32 graph1h = graphh;
 612                         bool relativegraph = (show_min != 0 && show_min != show_max);
 613                         float lastscaledvalue = 0.0;
 614                         bool lastscaledvalue_exists = false;
 615
 616                         for (std::list<Piece>::const_iterator j = m_log.begin();
 617                                         j != m_log.end(); j++) {
 618                                 const Piece &piece = *j;
 619                                 float value = 0;
 620                                 bool value_exists = false;
 621                                 Profiler::GraphValues::const_iterator k =
 622                                         piece.values.find(id);
 623
 624                                 if (k != piece.values.end()) {
 625                                         value = k->second;
 626                                         value_exists = true;
 627                                 }
 628
 629                                 if (!value_exists) {
 630                                         x++;
 631                                         lastscaledvalue_exists = false;
 632                                         continue;
 633                                 }
 634
 635                                 float scaledvalue = 1.0;
 636
 637                                 if (show_max != show_min)
 638                                         scaledvalue = (value - show_min) / (show_max - show_min);
 639
 640                                 if (scaledvalue == 1.0 && value == 0) {
 641                                         x++;
 642                                         lastscaledvalue_exists = false;
 643                                         continue;
 644                                 }
 645
 646                                 if (relativegraph) {
 647                                         if (lastscaledvalue_exists) {
 648                                                 s32 ivalue1 = lastscaledvalue * graph1h;
 649                                                 s32 ivalue2 = scaledvalue * graph1h;
 650                                                 driver->draw2DLine(v2s32(x - 1, graph1y - ivalue1),
 651                                                                    v2s32(x, graph1y - ivalue2), meta.color);
 652                                         }
 653
 654                                         lastscaledvalue = scaledvalue;
 655                                         lastscaledvalue_exists = true;
 656                                 } else {
 657                                         s32 ivalue = scaledvalue * graph1h;
 658                                         driver->draw2DLine(v2s32(x, graph1y),
 659                                                            v2s32(x, graph1y - ivalue), meta.color);
 660                                 }
 661
 662                                 x++;
 663                         }
 664
 665                         meta_i++;
 666                 }
 667         }
 668 };
 669
 670 class NodeDugEvent: public MtEvent
 671 {
 672 public:
 673         v3s16 p;
 674         MapNode n;
 675
 676         NodeDugEvent(v3s16 p, MapNode n):
 677                 p(p),
 678                 n(n)
 679         {}
 680         const char *getType() const
 681         {
 682                 return "NodeDug";
 683         }
 684 };
 685
 686 class SoundMaker
 687 {
 688         ISoundManager *m_sound;
 689         INodeDefManager *m_ndef;
 690 public:
 691         float m_player_step_timer;
 692
 693         SimpleSoundSpec m_player_step_sound;
 694         SimpleSoundSpec m_player_leftpunch_sound;
 695         SimpleSoundSpec m_player_rightpunch_sound;
 696
 697         SoundMaker(ISoundManager *sound, INodeDefManager *ndef):
 698                 m_sound(sound),
 699                 m_ndef(ndef),
 700                 m_player_step_timer(0)
 701         {
 702         }
 703
 704         void playPlayerStep()
 705         {
 706                 if (m_player_step_timer <= 0 && m_player_step_sound.exists()) {
 707                         m_player_step_timer = 0.03;
 708                         m_sound->playSound(m_player_step_sound, false);
 709                 }
 710         }
 711
 712         static void viewBobbingStep(MtEvent *e, void *data)
 713         {
 714                 SoundMaker *sm = (SoundMaker *)data;
 715                 sm->playPlayerStep();
 716         }
 717
 718         static void playerRegainGround(MtEvent *e, void *data)
 719         {
 720                 SoundMaker *sm = (SoundMaker *)data;
 721                 sm->playPlayerStep();
 722         }
 723
 724         static void playerJump(MtEvent *e, void *data)
 725         {
 726                 //SoundMaker *sm = (SoundMaker*)data;
 727         }
 728
 729         static void cameraPunchLeft(MtEvent *e, void *data)
 730         {
 731                 SoundMaker *sm = (SoundMaker *)data;
 732                 sm->m_sound->playSound(sm->m_player_leftpunch_sound, false);
 733         }
 734
 735         static void cameraPunchRight(MtEvent *e, void *data)
 736         {
 737                 SoundMaker *sm = (SoundMaker *)data;
 738                 sm->m_sound->playSound(sm->m_player_rightpunch_sound, false);
 739         }
 740
 741         static void nodeDug(MtEvent *e, void *data)
 742         {
 743                 SoundMaker *sm = (SoundMaker *)data;
 744                 NodeDugEvent *nde = (NodeDugEvent *)e;
 745                 sm->m_sound->playSound(sm->m_ndef->get(nde->n).sound_dug, false);
 746         }
 747
 748         static void playerDamage(MtEvent *e, void *data)
 749         {
 750                 SoundMaker *sm = (SoundMaker *)data;
 751                 sm->m_sound->playSound(SimpleSoundSpec("player_damage", 0.5), false);
 752         }
 753
 754         static void playerFallingDamage(MtEvent *e, void *data)
 755         {
 756                 SoundMaker *sm = (SoundMaker *)data;
 757                 sm->m_sound->playSound(SimpleSoundSpec("player_falling_damage", 0.5), false);
 758         }
 759
 760         void registerReceiver(MtEventManager *mgr)
 761         {
 762                 mgr->reg("ViewBobbingStep", SoundMaker::viewBobbingStep, this);
 763                 mgr->reg("PlayerRegainGround", SoundMaker::playerRegainGround, this);
 764                 mgr->reg("PlayerJump", SoundMaker::playerJump, this);
 765                 mgr->reg("CameraPunchLeft", SoundMaker::cameraPunchLeft, this);
 766                 mgr->reg("CameraPunchRight", SoundMaker::cameraPunchRight, this);
 767                 mgr->reg("NodeDug", SoundMaker::nodeDug, this);
 768                 mgr->reg("PlayerDamage", SoundMaker::playerDamage, this);
 769                 mgr->reg("PlayerFallingDamage", SoundMaker::playerFallingDamage, this);
 770         }
 771
 772         void step(float dtime)
 773         {
 774                 m_player_step_timer -= dtime;
 775         }
 776 };
 777
 778 // Locally stored sounds don't need to be preloaded because of this
 779 class GameOnDemandSoundFetcher: public OnDemandSoundFetcher
 780 {
 781         std::set<std::string> m_fetched;
 782 public:
 783         void fetchSounds(const std::string &name,
 784                         std::set<std::string> &dst_paths,
 785                         std::set<std::string> &dst_datas)
 786         {
 787                 if (m_fetched.count(name))
 788                         return;
 789
 790                 m_fetched.insert(name);
 791                 std::string base = porting::path_share + DIR_DELIM + "testsounds";
 792                 dst_paths.insert(base + DIR_DELIM + name + ".ogg");
 793                 dst_paths.insert(base + DIR_DELIM + name + ".0.ogg");
 794                 dst_paths.insert(base + DIR_DELIM + name + ".1.ogg");
 795                 dst_paths.insert(base + DIR_DELIM + name + ".2.ogg");
 796                 dst_paths.insert(base + DIR_DELIM + name + ".3.ogg");
 797                 dst_paths.insert(base + DIR_DELIM + name + ".4.ogg");
 798                 dst_paths.insert(base + DIR_DELIM + name + ".5.ogg");
 799                 dst_paths.insert(base + DIR_DELIM + name + ".6.ogg");
 800                 dst_paths.insert(base + DIR_DELIM + name + ".7.ogg");
 801                 dst_paths.insert(base + DIR_DELIM + name + ".8.ogg");
 802                 dst_paths.insert(base + DIR_DELIM + name + ".9.ogg");
 803         }
 804 };
 805
 806 class GameGlobalShaderConstantSetter : public IShaderConstantSetter
 807 {
 808         Sky *m_sky;
 809         bool *m_force_fog_off;
 810         f32 *m_fog_range;
 811         Client *m_client;
 812         bool m_fogEnabled;
 813
 814 public:
 815         void onSettingsChange(const std::string &name)
 816         {
 817                 if (name == "enable_fog")
 818                         m_fogEnabled = g_settings->getBool("enable_fog");
 819         }
 820
 821         static void SettingsCallback(const std::string name, void *userdata)
 822         {
 823                 reinterpret_cast<GameGlobalShaderConstantSetter*>(userdata)->onSettingsChange(name);
 824         }
 825
 826         GameGlobalShaderConstantSetter(Sky *sky, bool *force_fog_off,
 827                         f32 *fog_range, Client *client) :
 828                 m_sky(sky),
 829                 m_force_fog_off(force_fog_off),
 830                 m_fog_range(fog_range),
 831                 m_client(client)
 832         {
 833                 g_settings->registerChangedCallback("enable_fog", SettingsCallback, this);
 834                 m_fogEnabled = g_settings->getBool("enable_fog");
 835         }
 836
 837         ~GameGlobalShaderConstantSetter()
 838         {
 839                 g_settings->deregisterChangedCallback("enable_fog", SettingsCallback, this);
 840         }
 841
 842         virtual void onSetConstants(video::IMaterialRendererServices *services,
 843                         bool is_highlevel)
 844         {
 845                 if (!is_highlevel)
 846                         return;
 847
 848                 // Background color
 849                 video::SColor bgcolor = m_sky->getBgColor();
 850                 video::SColorf bgcolorf(bgcolor);
 851                 float bgcolorfa[4] = {
 852                         bgcolorf.r,
 853                         bgcolorf.g,
 854                         bgcolorf.b,
 855                         bgcolorf.a,
 856                 };
 857                 services->setPixelShaderConstant("skyBgColor", bgcolorfa, 4);
 858
 859                 // Fog distance
 860                 float fog_distance = 10000 * BS;
 861
 862                 if (m_fogEnabled && !*m_force_fog_off)
 863                         fog_distance = *m_fog_range;
 864
 865                 services->setPixelShaderConstant("fogDistance", &fog_distance, 1);
 866
 867                 // Day-night ratio
 868                 u32 daynight_ratio = m_client->getEnv().getDayNightRatio();
 869                 float daynight_ratio_f = (float)daynight_ratio / 1000.0;
 870                 services->setPixelShaderConstant("dayNightRatio", &daynight_ratio_f, 1);
 871
 872                 u32 animation_timer = porting::getTimeMs() % 100000;
 873                 float animation_timer_f = (float)animation_timer / 100000.0;
 874                 services->setPixelShaderConstant("animationTimer", &animation_timer_f, 1);
 875                 services->setVertexShaderConstant("animationTimer", &animation_timer_f, 1);
 876
 877                 LocalPlayer *player = m_client->getEnv().getLocalPlayer();
 878                 v3f eye_position = player->getEyePosition();
 879                 services->setPixelShaderConstant("eyePosition", (irr::f32 *)&eye_position, 3);
 880                 services->setVertexShaderConstant("eyePosition", (irr::f32 *)&eye_position, 3);
 881
 882                 // Uniform sampler layers
 883                 int layer0 = 0;
 884                 int layer1 = 1;
 885                 int layer2 = 2;
 886                 // before 1.8 there isn't a "integer interface", only float
 887 #if (IRRLICHT_VERSION_MAJOR == 1 && IRRLICHT_VERSION_MINOR < 8)
 888                 services->setPixelShaderConstant("baseTexture" , (irr::f32 *)&layer0, 1);
 889                 services->setPixelShaderConstant("normalTexture" , (irr::f32 *)&layer1, 1);
 890                 services->setPixelShaderConstant("useNormalmap" , (irr::f32 *)&layer2, 1);
 891 #else
 892                 services->setPixelShaderConstant("baseTexture" , (irr::s32 *)&layer0, 1);
 893                 services->setPixelShaderConstant("normalTexture" , (irr::s32 *)&layer1, 1);
 894                 services->setPixelShaderConstant("useNormalmap" , (irr::s32 *)&layer2, 1);
 895 #endif
 896         }
 897 };
 898
 899 bool nodePlacementPrediction(Client &client,
 900                 const ItemDefinition &playeritem_def, v3s16 nodepos, v3s16 neighbourpos)
 901 {
 902         std::string prediction = playeritem_def.node_placement_prediction;
 903         INodeDefManager *nodedef = client.ndef();
 904         ClientMap &map = client.getEnv().getClientMap();
 905         MapNode node;
 906         bool is_valid_position;
 907
 908         node = map.getNodeNoEx(nodepos, &is_valid_position);
 909         if (!is_valid_position)
 910                 return false;
 911
 912         if (prediction != "" && !nodedef->get(node).rightclickable) {
 913                 verbosestream << "Node placement prediction for "
 914                               << playeritem_def.name << " is "
 915                               << prediction << std::endl;
 916                 v3s16 p = neighbourpos;
 917
 918                 // Place inside node itself if buildable_to
 919                 MapNode n_under = map.getNodeNoEx(nodepos, &is_valid_position);
 920                 if (is_valid_position)
 921                 {
 922                         if (nodedef->get(n_under).buildable_to)
 923                                 p = nodepos;
 924                         else {
 925                                 node = map.getNodeNoEx(p, &is_valid_position);
 926                                 if (is_valid_position &&!nodedef->get(node).buildable_to)
 927                                         return false;
 928                         }
 929                 }
 930
 931                 // Find id of predicted node
 932                 content_t id;
 933                 bool found = nodedef->getId(prediction, id);
 934
 935                 if (!found) {
 936                         errorstream << "Node placement prediction failed for "
 937                                     << playeritem_def.name << " (places "
 938                                     << prediction
 939                                     << ") - Name not known" << std::endl;
 940                         return false;
 941                 }
 942
 943                 // Predict param2 for facedir and wallmounted nodes
 944                 u8 param2 = 0;
 945
 946                 if (nodedef->get(id).param_type_2 == CPT2_WALLMOUNTED) {
 947                         v3s16 dir = nodepos - neighbourpos;
 948
 949                         if (abs(dir.Y) > MYMAX(abs(dir.X), abs(dir.Z))) {
 950                                 param2 = dir.Y < 0 ? 1 : 0;
 951                         } else if (abs(dir.X) > abs(dir.Z)) {
 952                                 param2 = dir.X < 0 ? 3 : 2;
 953                         } else {
 954                                 param2 = dir.Z < 0 ? 5 : 4;
 955                         }
 956                 }
 957
 958                 if (nodedef->get(id).param_type_2 == CPT2_FACEDIR) {
 959                         v3s16 dir = nodepos - floatToInt(client.getEnv().getLocalPlayer()->getPosition(), BS);
 960
 961                         if (abs(dir.X) > abs(dir.Z)) {
 962                                 param2 = dir.X < 0 ? 3 : 1;
 963                         } else {
 964                                 param2 = dir.Z < 0 ? 2 : 0;
 965                         }
 966                 }
 967
 968                 assert(param2 <= 5);
 969
 970                 //Check attachment if node is in group attached_node
 971                 if (((ItemGroupList) nodedef->get(id).groups)["attached_node"] != 0) {
 972                         static v3s16 wallmounted_dirs[8] = {
 973                                 v3s16(0, 1, 0),
 974                                 v3s16(0, -1, 0),
 975                                 v3s16(1, 0, 0),
 976                                 v3s16(-1, 0, 0),
 977                                 v3s16(0, 0, 1),
 978                                 v3s16(0, 0, -1),
 979                         };
 980                         v3s16 pp;
 981
 982                         if (nodedef->get(id).param_type_2 == CPT2_WALLMOUNTED)
 983                                 pp = p + wallmounted_dirs[param2];
 984                         else
 985                                 pp = p + v3s16(0, -1, 0);
 986
 987                         if (!nodedef->get(map.getNodeNoEx(pp)).walkable)
 988                                 return false;
 989                 }
 990
 991                 // Add node to client map
 992                 MapNode n(id, 0, param2);
 993
 994                 try {
 995                         LocalPlayer *player = client.getEnv().getLocalPlayer();
 996
 997                         // Dont place node when player would be inside new node
 998                         // NOTE: This is to be eventually implemented by a mod as client-side Lua
 999                         if (!nodedef->get(n).walkable ||
1000                                         g_settings->getBool("enable_build_where_you_stand") ||
1001                                         (client.checkPrivilege("noclip") && g_settings->getBool("noclip")) ||
1002                                         (nodedef->get(n).walkable &&
1003                                          neighbourpos != player->getStandingNodePos() + v3s16(0, 1, 0) &&
1004                                          neighbourpos != player->getStandingNodePos() + v3s16(0, 2, 0))) {
1005
1006                                 // This triggers the required mesh update too
1007                                 client.addNode(p, n);
1008                                 return true;
1009                         }
1010                 } catch (InvalidPositionException &e) {
1011                         errorstream << "Node placement prediction failed for "
1012                                     << playeritem_def.name << " (places "
1013                                     << prediction
1014                                     << ") - Position not loaded" << std::endl;
1015                 }
1016         }
1017
1018         return false;
1019 }
1020
1021 static inline void create_formspec_menu(GUIFormSpecMenu **cur_formspec,
1022                 InventoryManager *invmgr, IGameDef *gamedef,
1023                 IWritableTextureSource *tsrc, IrrlichtDevice *device,
1024                 IFormSource *fs_src, TextDest *txt_dest, Client *client)
1025 {
1026
1027         if (*cur_formspec == 0) {
1028                 *cur_formspec = new GUIFormSpecMenu(device, guiroot, -1, &g_menumgr,
1029                                                     invmgr, gamedef, tsrc, fs_src, txt_dest, client);
1030                 (*cur_formspec)->doPause = false;
1031
1032                 /*
1033                         Caution: do not call (*cur_formspec)->drop() here --
1034                         the reference might outlive the menu, so we will
1035                         periodically check if *cur_formspec is the only
1036                         remaining reference (i.e. the menu was removed)
1037                         and delete it in that case.
1038                 */
1039
1040         } else {
1041                 (*cur_formspec)->setFormSource(fs_src);
1042                 (*cur_formspec)->setTextDest(txt_dest);
1043         }
1044 }
1045
1046 #define SIZE_TAG "size[11,5.5]"
1047
1048 static void show_chat_menu(GUIFormSpecMenu **cur_formspec,
1049                 InventoryManager *invmgr, IGameDef *gamedef,
1050                 IWritableTextureSource *tsrc, IrrlichtDevice *device,
1051                 Client *client, std::string text)
1052 {
1053         std::string formspec =
1054                 FORMSPEC_VERSION_STRING
1055                 SIZE_TAG
1056                 "field[3,2.35;6,0.5;f_text;;" + text + "]"
1057                 "button_exit[4,3;3,0.5;btn_send;" + wide_to_narrow(wstrgettext("Proceed")) + "]"
1058                 ;
1059
1060         /* Create menu */
1061         /* Note: FormspecFormSource and LocalFormspecHandler
1062          * are deleted by guiFormSpecMenu                     */
1063         FormspecFormSource *fs_src = new FormspecFormSource(formspec);
1064         LocalFormspecHandler *txt_dst = new LocalFormspecHandler("MT_CHAT_MENU", client);
1065
1066         create_formspec_menu(cur_formspec, invmgr, gamedef, tsrc, device, fs_src, txt_dst, NULL);
1067 }
1068
1069 static void show_deathscreen(GUIFormSpecMenu **cur_formspec,
1070                 InventoryManager *invmgr, IGameDef *gamedef,
1071                 IWritableTextureSource *tsrc, IrrlichtDevice *device, Client *client)
1072 {
1073         std::string formspec =
1074                 std::string(FORMSPEC_VERSION_STRING) +
1075                 SIZE_TAG
1076                 "bgcolor[#320000b4;true]"
1077                 "label[4.85,1.35;" + gettext("You died.") + "]"
1078                 "button_exit[4,3;3,0.5;btn_respawn;" + gettext("Respawn") + "]"
1079                 ;
1080
1081         /* Create menu */
1082         /* Note: FormspecFormSource and LocalFormspecHandler
1083          * are deleted by guiFormSpecMenu                     */
1084         FormspecFormSource *fs_src = new FormspecFormSource(formspec);
1085         LocalFormspecHandler *txt_dst = new LocalFormspecHandler("MT_DEATH_SCREEN", client);
1086
1087         create_formspec_menu(cur_formspec, invmgr, gamedef, tsrc, device,  fs_src, txt_dst, NULL);
1088 }
1089
1090 /******************************************************************************/
1091 static void show_pause_menu(GUIFormSpecMenu **cur_formspec,
1092                 InventoryManager *invmgr, IGameDef *gamedef,
1093                 IWritableTextureSource *tsrc, IrrlichtDevice *device,
1094                 bool singleplayermode)
1095 {
1096 #ifdef __ANDROID__
1097         std::string control_text = wide_to_narrow(wstrgettext("Default Controls:\n"
1098                                    "No menu visible:\n"
1099                                    "- single tap: button activate\n"
1100                                    "- double tap: place/use\n"
1101                                    "- slide finger: look around\n"
1102                                    "Menu/Inventory visible:\n"
1103                                    "- double tap (outside):\n"
1104                                    " -->close\n"
1105                                    "- touch stack, touch slot:\n"
1106                                    " --> move stack\n"
1107                                    "- touch&drag, tap 2nd finger\n"
1108                                    " --> place single item to slot\n"
1109                                                              ));
1110 #else
1111         std::string control_text = wide_to_narrow(wstrgettext("Default Controls:\n"
1112                                    "- WASD: move\n"
1113                                    "- Space: jump/climb\n"
1114                                    "- Shift: sneak/go down\n"
1115                                    "- Q: drop item\n"
1116                                    "- I: inventory\n"
1117                                    "- Mouse: turn/look\n"
1118                                    "- Mouse left: dig/punch\n"
1119                                    "- Mouse right: place/use\n"
1120                                    "- Mouse wheel: select item\n"
1121                                    "- T: chat\n"
1122                                                              ));
1123 #endif
1124
1125         float ypos = singleplayermode ? 0.5 : 0.1;
1126         std::ostringstream os;
1127
1128         os << FORMSPEC_VERSION_STRING  << SIZE_TAG
1129            << "button_exit[4," << (ypos++) << ";3,0.5;btn_continue;"
1130            << wide_to_narrow(wstrgettext("Continue"))     << "]";
1131
1132         if (!singleplayermode) {
1133                 os << "button_exit[4," << (ypos++) << ";3,0.5;btn_change_password;"
1134                    << wide_to_narrow(wstrgettext("Change Password")) << "]";
1135         }
1136
1137 #ifndef __ANDROID__
1138         os              << "button_exit[4," << (ypos++) << ";3,0.5;btn_sound;"
1139                         << wide_to_narrow(wstrgettext("Sound Volume")) << "]";
1140         os              << "button_exit[4," << (ypos++) << ";3,0.5;btn_key_config;"
1141                         << wide_to_narrow(wstrgettext("Change Keys"))  << "]";
1142 #endif
1143         os              << "button_exit[4," << (ypos++) << ";3,0.5;btn_exit_menu;"
1144                         << wide_to_narrow(wstrgettext("Exit to Menu")) << "]";
1145         os              << "button_exit[4," << (ypos++) << ";3,0.5;btn_exit_os;"
1146                         << wide_to_narrow(wstrgettext("Exit to OS"))   << "]"
1147                         << "textarea[7.5,0.25;3.9,6.25;;" << control_text << ";]"
1148                         << "textarea[0.4,0.25;3.5,6;;" << "Minetest\n"
1149                         << minetest_build_info << "\n"
1150                         << "path_user = " << wrap_rows(porting::path_user, 20)
1151                         << "\n;]";
1152
1153         /* Create menu */
1154         /* Note: FormspecFormSource and LocalFormspecHandler  *
1155          * are deleted by guiFormSpecMenu                     */
1156         FormspecFormSource *fs_src = new FormspecFormSource(os.str());
1157         LocalFormspecHandler *txt_dst = new LocalFormspecHandler("MT_PAUSE_MENU");
1158
1159         create_formspec_menu(cur_formspec, invmgr, gamedef, tsrc, device,  fs_src, txt_dst, NULL);
1160         (*cur_formspec)->setFocus(L"btn_continue");
1161         (*cur_formspec)->doPause = true;
1162 }
1163
1164 /******************************************************************************/
1165 static void updateChat(Client &client, f32 dtime, bool show_debug,
1166                 const v2u32 &screensize, bool show_chat, u32 show_profiler,
1167                 ChatBackend &chat_backend, gui::IGUIStaticText *guitext_chat)
1168 {
1169         // Add chat log output for errors to be shown in chat
1170         static LogOutputBuffer chat_log_error_buf(LMT_ERROR);
1171
1172         // Get new messages from error log buffer
1173         while (!chat_log_error_buf.empty()) {
1174                 chat_backend.addMessage(L"", narrow_to_wide(chat_log_error_buf.get()));
1175         }
1176
1177         // Get new messages from client
1178         std::wstring message;
1179
1180         while (client.getChatMessage(message)) {
1181                 chat_backend.addUnparsedMessage(message);
1182         }
1183
1184         // Remove old messages
1185         chat_backend.step(dtime);
1186
1187         // Display all messages in a static text element
1188         unsigned int recent_chat_count = chat_backend.getRecentBuffer().getLineCount();
1189         std::wstring recent_chat       = chat_backend.getRecentChat();
1190         unsigned int line_height       = g_fontengine->getLineHeight();
1191
1192         guitext_chat->setText(recent_chat.c_str());
1193
1194         // Update gui element size and position
1195         s32 chat_y = 5 + line_height;
1196
1197         if (show_debug)
1198                 chat_y += line_height;
1199
1200         // first pass to calculate height of text to be set
1201         s32 width = std::min(g_fontengine->getTextWidth(recent_chat) + 10,
1202                              porting::getWindowSize().X - 20);
1203         core::rect<s32> rect(10, chat_y, width, chat_y + porting::getWindowSize().Y);
1204         guitext_chat->setRelativePosition(rect);
1205
1206         //now use real height of text and adjust rect according to this size
1207         rect = core::rect<s32>(10, chat_y, width,
1208                                chat_y + guitext_chat->getTextHeight());
1209
1210
1211         guitext_chat->setRelativePosition(rect);
1212         // Don't show chat if disabled or empty or profiler is enabled
1213         guitext_chat->setVisible(
1214                 show_chat && recent_chat_count != 0 && !show_profiler);
1215 }
1216
1217
1218 /****************************************************************************
1219  Fast key cache for main game loop
1220  ****************************************************************************/
1221
1222 /* This is faster than using getKeySetting with the tradeoff that functions
1223  * using it must make sure that it's initialised before using it and there is
1224  * no error handling (for example bounds checking). This is really intended for
1225  * use only in the main running loop of the client (the_game()) where the faster
1226  * (up to 10x faster) key lookup is an asset. Other parts of the codebase
1227  * (e.g. formspecs) should continue using getKeySetting().
1228  */
1229 struct KeyCache {
1230
1231         KeyCache() { populate(); }
1232
1233         enum {
1234                 // Player movement
1235                 KEYMAP_ID_FORWARD,
1236                 KEYMAP_ID_BACKWARD,
1237                 KEYMAP_ID_LEFT,
1238                 KEYMAP_ID_RIGHT,
1239                 KEYMAP_ID_JUMP,
1240                 KEYMAP_ID_SPECIAL1,
1241                 KEYMAP_ID_SNEAK,
1242
1243                 // Other
1244                 KEYMAP_ID_DROP,
1245                 KEYMAP_ID_INVENTORY,
1246                 KEYMAP_ID_CHAT,
1247                 KEYMAP_ID_CMD,
1248                 KEYMAP_ID_CONSOLE,
1249                 KEYMAP_ID_FREEMOVE,
1250                 KEYMAP_ID_FASTMOVE,
1251                 KEYMAP_ID_NOCLIP,
1252                 KEYMAP_ID_SCREENSHOT,
1253                 KEYMAP_ID_TOGGLE_HUD,
1254                 KEYMAP_ID_TOGGLE_CHAT,
1255                 KEYMAP_ID_TOGGLE_FORCE_FOG_OFF,
1256                 KEYMAP_ID_TOGGLE_UPDATE_CAMERA,
1257                 KEYMAP_ID_TOGGLE_DEBUG,
1258                 KEYMAP_ID_TOGGLE_PROFILER,
1259                 KEYMAP_ID_CAMERA_MODE,
1260                 KEYMAP_ID_INCREASE_VIEWING_RANGE,
1261                 KEYMAP_ID_DECREASE_VIEWING_RANGE,
1262                 KEYMAP_ID_RANGESELECT,
1263
1264                 KEYMAP_ID_QUICKTUNE_NEXT,
1265                 KEYMAP_ID_QUICKTUNE_PREV,
1266                 KEYMAP_ID_QUICKTUNE_INC,
1267                 KEYMAP_ID_QUICKTUNE_DEC,
1268
1269                 KEYMAP_ID_DEBUG_STACKS,
1270
1271                 // Fake keycode for array size and internal checks
1272                 KEYMAP_INTERNAL_ENUM_COUNT
1273
1274
1275         };
1276
1277         void populate();
1278
1279         KeyPress key[KEYMAP_INTERNAL_ENUM_COUNT];
1280 };
1281
1282 void KeyCache::populate()
1283 {
1284         key[KEYMAP_ID_FORWARD]      = getKeySetting("keymap_forward");
1285         key[KEYMAP_ID_BACKWARD]     = getKeySetting("keymap_backward");
1286         key[KEYMAP_ID_LEFT]         = getKeySetting("keymap_left");
1287         key[KEYMAP_ID_RIGHT]        = getKeySetting("keymap_right");
1288         key[KEYMAP_ID_JUMP]         = getKeySetting("keymap_jump");
1289         key[KEYMAP_ID_SPECIAL1]     = getKeySetting("keymap_special1");
1290         key[KEYMAP_ID_SNEAK]        = getKeySetting("keymap_sneak");
1291
1292         key[KEYMAP_ID_DROP]         = getKeySetting("keymap_drop");
1293         key[KEYMAP_ID_INVENTORY]    = getKeySetting("keymap_inventory");
1294         key[KEYMAP_ID_CHAT]         = getKeySetting("keymap_chat");
1295         key[KEYMAP_ID_CMD]          = getKeySetting("keymap_cmd");
1296         key[KEYMAP_ID_CONSOLE]      = getKeySetting("keymap_console");
1297         key[KEYMAP_ID_FREEMOVE]     = getKeySetting("keymap_freemove");
1298         key[KEYMAP_ID_FASTMOVE]     = getKeySetting("keymap_fastmove");
1299         key[KEYMAP_ID_NOCLIP]       = getKeySetting("keymap_noclip");
1300         key[KEYMAP_ID_SCREENSHOT]   = getKeySetting("keymap_screenshot");
1301         key[KEYMAP_ID_TOGGLE_HUD]   = getKeySetting("keymap_toggle_hud");
1302         key[KEYMAP_ID_TOGGLE_CHAT]  = getKeySetting("keymap_toggle_chat");
1303         key[KEYMAP_ID_TOGGLE_FORCE_FOG_OFF]
1304                         = getKeySetting("keymap_toggle_force_fog_off");
1305         key[KEYMAP_ID_TOGGLE_UPDATE_CAMERA]
1306                         = getKeySetting("keymap_toggle_update_camera");
1307         key[KEYMAP_ID_TOGGLE_DEBUG]
1308                         = getKeySetting("keymap_toggle_debug");
1309         key[KEYMAP_ID_TOGGLE_PROFILER]
1310                         = getKeySetting("keymap_toggle_profiler");
1311         key[KEYMAP_ID_CAMERA_MODE]
1312                         = getKeySetting("keymap_camera_mode");
1313         key[KEYMAP_ID_INCREASE_VIEWING_RANGE]
1314                         = getKeySetting("keymap_increase_viewing_range_min");
1315         key[KEYMAP_ID_DECREASE_VIEWING_RANGE]
1316                         = getKeySetting("keymap_decrease_viewing_range_min");
1317         key[KEYMAP_ID_RANGESELECT]
1318                         = getKeySetting("keymap_rangeselect");
1319
1320         key[KEYMAP_ID_QUICKTUNE_NEXT] = getKeySetting("keymap_quicktune_next");
1321         key[KEYMAP_ID_QUICKTUNE_PREV] = getKeySetting("keymap_quicktune_prev");
1322         key[KEYMAP_ID_QUICKTUNE_INC]  = getKeySetting("keymap_quicktune_inc");
1323         key[KEYMAP_ID_QUICKTUNE_DEC]  = getKeySetting("keymap_quicktune_dec");
1324
1325         key[KEYMAP_ID_DEBUG_STACKS]   = getKeySetting("keymap_print_debug_stacks");
1326 }
1327
1328
1329 /****************************************************************************
1330
1331  ****************************************************************************/
1332
1333 const float object_hit_delay = 0.2;
1334
1335 struct FpsControl {
1336         u32 last_time, busy_time, sleep_time;
1337 };
1338
1339
1340 /* The reason the following structs are not anonymous structs within the
1341  * class is that they are not used by the majority of member functions and
1342  * many functions that do require objects of thse types do not modify them
1343  * (so they can be passed as a const qualified parameter)
1344  */
1345 struct CameraOrientation {
1346         f32 camera_yaw;    // "right/left"
1347         f32 camera_pitch;  // "up/down"
1348 };
1349
1350 struct GameRunData {
1351         u16 dig_index;
1352         u16 new_playeritem;
1353         PointedThing pointed_old;
1354         bool digging;
1355         bool ldown_for_dig;
1356         bool left_punch;
1357         bool update_wielded_item_trigger;
1358         bool reset_jump_timer;
1359         float nodig_delay_timer;
1360         float dig_time;
1361         float dig_time_complete;
1362         float repeat_rightclick_timer;
1363         float object_hit_delay_timer;
1364         float time_from_last_punch;
1365         ClientActiveObject *selected_object;
1366
1367         float jump_timer;
1368         float damage_flash;
1369         float update_draw_list_timer;
1370         float statustext_time;
1371
1372         f32 fog_range;
1373
1374         v3f update_draw_list_last_cam_dir;
1375
1376         u32 profiler_current_page;
1377         u32 profiler_max_page;     // Number of pages
1378
1379         float time_of_day;
1380         float time_of_day_smooth;
1381 };
1382
1383 struct Jitter {
1384         f32 max, min, avg, counter, max_sample, min_sample, max_fraction;
1385 };
1386
1387 struct RunStats {
1388         u32 drawtime;
1389         u32 beginscenetime;
1390         u32 endscenetime;
1391
1392         Jitter dtime_jitter, busy_time_jitter;
1393 };
1394
1395 /* Flags that can, or may, change during main game loop
1396  */
1397 struct VolatileRunFlags {
1398         bool invert_mouse;
1399         bool show_chat;
1400         bool show_hud;
1401         bool force_fog_off;
1402         bool show_debug;
1403         bool show_profiler_graph;
1404         bool disable_camera_update;
1405         bool first_loop_after_window_activation;
1406         bool camera_offset_changed;
1407 };
1408
1409
1410 /****************************************************************************
1411  THE GAME
1412  ****************************************************************************/
1413
1414 /* This is not intended to be a public class. If a public class becomes
1415  * desirable then it may be better to create another 'wrapper' class that
1416  * hides most of the stuff in this class (nothing in this class is required
1417  * by any other file) but exposes the public methods/data only.
1418  */
1419 class Game
1420 {
1421 public:
1422         Game();
1423         ~Game();
1424
1425         bool startup(bool *kill,
1426                         bool random_input,
1427                         InputHandler *input,
1428                         IrrlichtDevice *device,
1429                         const std::string &map_dir,
1430                         const std::string &playername,
1431                         const std::string &password,
1432                         // If address is "", local server is used and address is updated
1433                         std::string *address,
1434                         u16 port,
1435                         std::wstring *error_message,
1436                         ChatBackend *chat_backend,
1437                         const SubgameSpec &gamespec,    // Used for local game
1438                         bool simple_singleplayer_mode);
1439
1440         void run();
1441         void shutdown();
1442
1443 protected:
1444
1445         void extendedResourceCleanup();
1446
1447         // Basic initialisation
1448         bool init(const std::string &map_dir, std::string *address,
1449                         u16 port,
1450                         const SubgameSpec &gamespec);
1451         bool initSound();
1452         bool createSingleplayerServer(const std::string map_dir,
1453                         const SubgameSpec &gamespec, u16 port, std::string *address);
1454
1455         // Client creation
1456         bool createClient(const std::string &playername,
1457                         const std::string &password, std::string *address, u16 port,
1458                         std::wstring *error_message);
1459         bool initGui(std::wstring *error_message);
1460
1461         // Client connection
1462         bool connectToServer(const std::string &playername,
1463                         const std::string &password, std::string *address, u16 port,
1464                         bool *connect_ok, bool *aborted);
1465         bool getServerContent(bool *aborted);
1466
1467         // Main loop
1468
1469         void updateInteractTimers(GameRunData *args, f32 dtime);
1470         bool checkConnection();
1471         bool handleCallbacks();
1472         void processQueues();
1473         void updateProfilers(const GameRunData &run_data, const RunStats &stats,
1474                         const FpsControl &draw_times, f32 dtime);
1475         void addProfilerGraphs(const RunStats &stats, const FpsControl &draw_times,
1476                         f32 dtime);
1477         void updateStats(RunStats *stats, const FpsControl &draw_times, f32 dtime);
1478
1479         void processUserInput(VolatileRunFlags *flags, GameRunData *interact_args,
1480                         f32 dtime);
1481         void processKeyboardInput(VolatileRunFlags *flags,
1482                         float *statustext_time,
1483                         float *jump_timer,
1484                         bool *reset_jump_timer,
1485                         u32 *profiler_current_page,
1486                         u32 profiler_max_page);
1487         void processItemSelection(u16 *new_playeritem);
1488
1489         void dropSelectedItem();
1490         void openInventory();
1491         void openConsole();
1492         void toggleFreeMove(float *statustext_time);
1493         void toggleFreeMoveAlt(float *statustext_time, float *jump_timer);
1494         void toggleFast(float *statustext_time);
1495         void toggleNoClip(float *statustext_time);
1496
1497         void toggleChat(float *statustext_time, bool *flag);
1498         void toggleHud(float *statustext_time, bool *flag);
1499         void toggleFog(float *statustext_time, bool *flag);
1500         void toggleDebug(float *statustext_time, bool *show_debug,
1501                         bool *show_profiler_graph);
1502         void toggleUpdateCamera(float *statustext_time, bool *flag);
1503         void toggleProfiler(float *statustext_time, u32 *profiler_current_page,
1504                         u32 profiler_max_page);
1505
1506         void increaseViewRange(float *statustext_time);
1507         void decreaseViewRange(float *statustext_time);
1508         void toggleFullViewRange(float *statustext_time);
1509
1510         void updateCameraDirection(CameraOrientation *cam, VolatileRunFlags *flags);
1511         void updateCameraOrientation(CameraOrientation *cam,
1512                         const VolatileRunFlags &flags);
1513         void updatePlayerControl(const CameraOrientation &cam);
1514         void step(f32 *dtime);
1515         void processClientEvents(CameraOrientation *cam, float *damage_flash);
1516         void updateCamera(VolatileRunFlags *flags, u32 busy_time, f32 dtime,
1517                         float time_from_last_punch);
1518         void updateSound(f32 dtime);
1519         void processPlayerInteraction(std::vector<aabb3f> &highlight_boxes,
1520                         GameRunData *runData, f32 dtime, bool show_hud,
1521                         bool show_debug);
1522         void handlePointingAtNode(GameRunData *runData,
1523                         const PointedThing &pointed, const ItemDefinition &playeritem_def,
1524                         const ToolCapabilities &playeritem_toolcap, f32 dtime);
1525         void handlePointingAtObject(GameRunData *runData,
1526                         const PointedThing &pointed, const ItemStack &playeritem,
1527                         const v3f &player_position, bool show_debug);
1528         void handleDigging(GameRunData *runData, const PointedThing &pointed,
1529                         const v3s16 &nodepos, const ToolCapabilities &playeritem_toolcap,
1530                         f32 dtime);
1531         void updateFrame(std::vector<aabb3f> &highlight_boxes, ProfilerGraph *graph,
1532                         RunStats *stats, GameRunData *runData,
1533                         f32 dtime, const VolatileRunFlags &flags, const CameraOrientation &cam);
1534         void updateGui(float *statustext_time, const RunStats &stats,
1535                         const GameRunData& runData, f32 dtime, const VolatileRunFlags &flags,
1536                         const CameraOrientation &cam);
1537         void updateProfilerGraphs(ProfilerGraph *graph);
1538
1539         // Misc
1540         void limitFps(FpsControl *fps_timings, f32 *dtime);
1541
1542         void showOverlayMessage(const wchar_t *msg, float dtime, int percent,
1543                         bool draw_clouds = true);
1544
1545 private:
1546         InputHandler *input;
1547
1548         Client *client;
1549         Server *server;
1550
1551         IWritableTextureSource *texture_src;
1552         IWritableShaderSource *shader_src;
1553
1554         // When created, these will be filled with data received from the server
1555         IWritableItemDefManager *itemdef_manager;
1556         IWritableNodeDefManager *nodedef_manager;
1557
1558         GameOnDemandSoundFetcher soundfetcher; // useful when testing
1559         ISoundManager *sound;
1560         bool sound_is_dummy;
1561         SoundMaker *soundmaker;
1562
1563         ChatBackend *chat_backend;
1564
1565         GUIFormSpecMenu *current_formspec;
1566
1567         EventManager *eventmgr;
1568         QuicktuneShortcutter *quicktune;
1569
1570         GUIChatConsole *gui_chat_console; // Free using ->Drop()
1571         MapDrawControl *draw_control;
1572         Camera *camera;
1573         Clouds *clouds;                   // Free using ->Drop()
1574         Sky *sky;                         // Free using ->Drop()
1575         Inventory *local_inventory;
1576         Hud *hud;
1577
1578         /* 'cache'
1579            This class does take ownership/responsibily for cleaning up etc of any of
1580            these items (e.g. device)
1581         */
1582         IrrlichtDevice *device;
1583         video::IVideoDriver *driver;
1584         scene::ISceneManager *smgr;
1585         bool *kill;
1586         std::wstring *error_message;
1587         IGameDef *gamedef;                     // Convenience (same as *client)
1588         scene::ISceneNode *skybox;
1589
1590         bool random_input;
1591         bool simple_singleplayer_mode;
1592         /* End 'cache' */
1593
1594         /* Pre-calculated values
1595          */
1596         int crack_animation_length;
1597
1598         /* GUI stuff
1599          */
1600         gui::IGUIStaticText *guitext;          // First line of debug text
1601         gui::IGUIStaticText *guitext2;         // Second line of debug text
1602         gui::IGUIStaticText *guitext_info;     // At the middle of the screen
1603         gui::IGUIStaticText *guitext_status;
1604         gui::IGUIStaticText *guitext_chat;         // Chat text
1605         gui::IGUIStaticText *guitext_profiler; // Profiler text
1606
1607         std::wstring infotext;
1608         std::wstring statustext;
1609
1610         KeyCache keycache;
1611
1612         IntervalLimiter profiler_interval;
1613
1614         /* TODO: Add a callback function so these can be updated when a setting
1615          *       changes.  At this point in time it doesn't matter (e.g. /set
1616          *       is documented to change server settings only)
1617          *
1618          * TODO: Local caching of settings is not optimal and should at some stage
1619          *       be updated to use a global settings object for getting thse values
1620          *       (as opposed to the this local caching). This can be addressed in
1621          *       a later release.
1622          */
1623         bool m_cache_doubletap_jump;
1624         bool m_cache_enable_node_highlighting;
1625         bool m_cache_enable_clouds;
1626         bool m_cache_enable_particles;
1627         bool m_cache_enable_fog;
1628         f32  m_cache_mouse_sensitivity;
1629         f32  m_repeat_right_click_time;
1630 };
1631
1632 Game::Game() :
1633         client(NULL),
1634         server(NULL),
1635         texture_src(NULL),
1636         shader_src(NULL),
1637         itemdef_manager(NULL),
1638         nodedef_manager(NULL),
1639         sound(NULL),
1640         sound_is_dummy(false),
1641         soundmaker(NULL),
1642         chat_backend(NULL),
1643         current_formspec(NULL),
1644         eventmgr(NULL),
1645         quicktune(NULL),
1646         gui_chat_console(NULL),
1647         draw_control(NULL),
1648         camera(NULL),
1649         clouds(NULL),
1650         sky(NULL),
1651         local_inventory(NULL),
1652         hud(NULL)
1653 {
1654         m_cache_doubletap_jump            = g_settings->getBool("doubletap_jump");
1655         m_cache_enable_node_highlighting  = g_settings->getBool("enable_node_highlighting");
1656         m_cache_enable_clouds             = g_settings->getBool("enable_clouds");
1657         m_cache_enable_particles          = g_settings->getBool("enable_particles");
1658         m_cache_enable_fog                = g_settings->getBool("enable_fog");
1659         m_cache_mouse_sensitivity         = g_settings->getFloat("mouse_sensitivity");
1660         m_repeat_right_click_time         = g_settings->getFloat("repeat_rightclick_time");
1661
1662         m_cache_mouse_sensitivity = rangelim(m_cache_mouse_sensitivity, 0.001, 100.0);
1663 }
1664
1665
1666
1667 /****************************************************************************
1668  MinetestApp Public
1669  ****************************************************************************/
1670
1671 Game::~Game()
1672 {
1673         delete client;
1674         delete soundmaker;
1675         if (!sound_is_dummy)
1676                 delete sound;
1677
1678         delete server; // deleted first to stop all server threads
1679
1680         delete hud;
1681         delete local_inventory;
1682         delete camera;
1683         delete quicktune;
1684         delete eventmgr;
1685         delete texture_src;
1686         delete shader_src;
1687         delete nodedef_manager;
1688         delete itemdef_manager;
1689         delete draw_control;
1690
1691         extendedResourceCleanup();
1692 }
1693
1694 bool Game::startup(bool *kill,
1695                 bool random_input,
1696                 InputHandler *input,
1697                 IrrlichtDevice *device,
1698                 const std::string &map_dir,
1699                 const std::string &playername,
1700                 const std::string &password,
1701                 std::string *address,     // can change if simple_singleplayer_mode
1702                 u16 port,
1703                 std::wstring *error_message,
1704                 ChatBackend *chat_backend,
1705                 const SubgameSpec &gamespec,
1706                 bool simple_singleplayer_mode)
1707 {
1708         // "cache"
1709         this->device        = device;
1710         this->kill          = kill;
1711         this->error_message = error_message;
1712         this->random_input  = random_input;
1713         this->input         = input;
1714         this->chat_backend  = chat_backend;
1715         this->simple_singleplayer_mode = simple_singleplayer_mode;
1716
1717         driver              = device->getVideoDriver();
1718         smgr                = device->getSceneManager();
1719
1720         smgr->getParameters()->setAttribute(scene::OBJ_LOADER_IGNORE_MATERIAL_FILES, true);
1721
1722         if (!init(map_dir, address, port, gamespec))
1723                 return false;
1724
1725         if (!createClient(playername, password, address, port, error_message))
1726                 return false;
1727
1728         return true;
1729 }
1730
1731
1732 void Game::run()
1733 {
1734         ProfilerGraph graph;
1735         RunStats stats              = { 0 };
1736         CameraOrientation cam_view  = { 0 };
1737         GameRunData runData         = { 0 };
1738         FpsControl draw_times       = { 0 };
1739         VolatileRunFlags flags      = { 0 };
1740         f32 dtime; // in seconds
1741
1742         runData.time_from_last_punch  = 10.0;
1743         runData.profiler_max_page = 3;
1744         runData.update_wielded_item_trigger = true;
1745
1746         flags.show_chat = true;
1747         flags.show_hud = true;
1748         flags.show_debug = g_settings->getBool("show_debug");
1749         flags.invert_mouse = g_settings->getBool("invert_mouse");
1750         flags.first_loop_after_window_activation = true;
1751
1752         /* Clear the profiler */
1753         Profiler::GraphValues dummyvalues;
1754         g_profiler->graphGet(dummyvalues);
1755
1756         draw_times.last_time = device->getTimer()->getTime();
1757
1758         shader_src->addGlobalConstantSetter(new GameGlobalShaderConstantSetter(
1759                         sky,
1760                         &flags.force_fog_off,
1761                         &runData.fog_range,
1762                         client));
1763
1764         std::vector<aabb3f> highlight_boxes;
1765
1766         set_light_table(g_settings->getFloat("display_gamma"));
1767
1768         while (device->run() && !(*kill || g_gamecallback->shutdown_requested)) {
1769
1770                 /* Must be called immediately after a device->run() call because it
1771                  * uses device->getTimer()->getTime()
1772                  */
1773                 limitFps(&draw_times, &dtime);
1774
1775                 updateStats(&stats, draw_times, dtime);
1776                 updateInteractTimers(&runData, dtime);
1777
1778                 if (!checkConnection())
1779                         break;
1780                 if (!handleCallbacks())
1781                         break;
1782
1783                 processQueues();
1784
1785                 infotext = L"";
1786                 hud->resizeHotbar();
1787
1788                 updateProfilers(runData, stats, draw_times, dtime);
1789                 processUserInput(&flags, &runData, dtime);
1790                 // Update camera before player movement to avoid camera lag of one frame
1791                 updateCameraDirection(&cam_view, &flags);
1792                 updatePlayerControl(cam_view);
1793                 step(&dtime);
1794                 processClientEvents(&cam_view, &runData.damage_flash);
1795                 updateCamera(&flags, draw_times.busy_time, dtime,
1796                                 runData.time_from_last_punch);
1797                 updateSound(dtime);
1798                 processPlayerInteraction(highlight_boxes, &runData, dtime,
1799                                 flags.show_hud, flags.show_debug);
1800                 updateFrame(highlight_boxes, &graph, &stats, &runData, dtime,
1801                                 flags, cam_view);
1802                 updateProfilerGraphs(&graph);
1803         }
1804 }
1805
1806
1807 void Game::shutdown()
1808 {
1809         showOverlayMessage(wgettext("Shutting down..."), 0, 0, false);
1810
1811         if (clouds)
1812                 clouds->drop();
1813
1814         if (gui_chat_console)
1815                 gui_chat_console->drop();
1816
1817         if (sky)
1818                 sky->drop();
1819
1820         /* cleanup menus */
1821         while (g_menumgr.menuCount() > 0) {
1822                 g_menumgr.m_stack.front()->setVisible(false);
1823                 g_menumgr.deletingMenu(g_menumgr.m_stack.front());
1824         }
1825
1826         if (current_formspec) {
1827                 current_formspec->drop();
1828                 current_formspec = NULL;
1829         }
1830
1831         chat_backend->addMessage(L"", L"# Disconnected.");
1832         chat_backend->addMessage(L"", L"");
1833
1834         if (client) {
1835                 client->Stop();
1836                 while (!client->isShutdown()) {
1837                         assert(texture_src != NULL);
1838                         assert(shader_src != NULL);
1839                         texture_src->processQueue();
1840                         shader_src->processQueue();
1841                         sleep_ms(100);
1842                 }
1843         }
1844 }
1845
1846
1847
1848 /****************************************************************************
1849  Startup
1850  ****************************************************************************/
1851
1852 bool Game::init(
1853                 const std::string &map_dir,
1854                 std::string *address,
1855                 u16 port,
1856                 const SubgameSpec &gamespec)
1857 {
1858         showOverlayMessage(wgettext("Loading..."), 0, 0);
1859
1860         texture_src = createTextureSource(device);
1861         shader_src = createShaderSource(device);
1862
1863         itemdef_manager = createItemDefManager();
1864         nodedef_manager = createNodeDefManager();
1865
1866         eventmgr = new EventManager();
1867         quicktune = new QuicktuneShortcutter();
1868
1869         if (!(texture_src && shader_src && itemdef_manager && nodedef_manager
1870                         && eventmgr && quicktune))
1871                 return false;
1872
1873         if (!initSound())
1874                 return false;
1875
1876         // Create a server if not connecting to an existing one
1877         if (*address == "") {
1878                 if (!createSingleplayerServer(map_dir, gamespec, port, address))
1879                         return false;
1880         }
1881
1882         return true;
1883 }
1884
1885 bool Game::initSound()
1886 {
1887 #if USE_SOUND
1888         if (g_settings->getBool("enable_sound")) {
1889                 infostream << "Attempting to use OpenAL audio" << std::endl;
1890                 sound = createOpenALSoundManager(&soundfetcher);
1891                 if (!sound)
1892                         infostream << "Failed to initialize OpenAL audio" << std::endl;
1893         } else
1894                 infostream << "Sound disabled." << std::endl;
1895 #endif
1896
1897         if (!sound) {
1898                 infostream << "Using dummy audio." << std::endl;
1899                 sound = &dummySoundManager;
1900                 sound_is_dummy = true;
1901         }
1902
1903         soundmaker = new SoundMaker(sound, nodedef_manager);
1904         if (!soundmaker)
1905                 return false;
1906
1907         soundmaker->registerReceiver(eventmgr);
1908
1909         return true;
1910 }
1911
1912 bool Game::createSingleplayerServer(const std::string map_dir,
1913                 const SubgameSpec &gamespec, u16 port, std::string *address)
1914 {
1915         showOverlayMessage(wgettext("Creating server..."), 0, 5);
1916
1917         std::string bind_str = g_settings->get("bind_address");
1918         Address bind_addr(0, 0, 0, 0, port);
1919
1920         if (g_settings->getBool("ipv6_server")) {
1921                 bind_addr.setAddress((IPv6AddressBytes *) NULL);
1922         }
1923
1924         try {
1925                 bind_addr.Resolve(bind_str.c_str());
1926         } catch (ResolveError &e) {
1927                 infostream << "Resolving bind address \"" << bind_str
1928                            << "\" failed: " << e.what()
1929                            << " -- Listening on all addresses." << std::endl;
1930         }
1931
1932         if (bind_addr.isIPv6() && !g_settings->getBool("enable_ipv6")) {
1933                 *error_message = L"Unable to listen on " +
1934                                 narrow_to_wide(bind_addr.serializeString()) +
1935                                 L" because IPv6 is disabled";
1936                 errorstream << wide_to_narrow(*error_message) << std::endl;
1937                 return false;
1938         }
1939
1940         server = new Server(map_dir, gamespec, simple_singleplayer_mode,
1941                             bind_addr.isIPv6());
1942
1943         server->start(bind_addr);
1944
1945         return true;
1946 }
1947
1948 bool Game::createClient(const std::string &playername,
1949                 const std::string &password, std::string *address, u16 port,
1950                 std::wstring *error_message)
1951 {
1952         showOverlayMessage(wgettext("Creating client..."), 0, 10);
1953
1954         draw_control = new MapDrawControl;
1955         if (!draw_control)
1956                 return false;
1957
1958         bool could_connect, connect_aborted;
1959
1960         if (!connectToServer(playername, password, address, port,
1961                         &could_connect, &connect_aborted))
1962                 return false;
1963
1964         if (!could_connect) {
1965                 if (*error_message == L"" && !connect_aborted) {
1966                         // Should not happen if error messages are set properly
1967                         *error_message = L"Connection failed for unknown reason";
1968                         errorstream << wide_to_narrow(*error_message) << std::endl;
1969                 }
1970                 return false;
1971         }
1972
1973         if (!getServerContent(&connect_aborted)) {
1974                 if (*error_message == L"" && !connect_aborted) {
1975                         // Should not happen if error messages are set properly
1976                         *error_message = L"Connection failed for unknown reason";
1977                         errorstream << wide_to_narrow(*error_message) << std::endl;
1978                 }
1979                 return false;
1980         }
1981
1982         // Update cached textures, meshes and materials
1983         client->afterContentReceived(device, g_fontengine->getFont());
1984
1985         /* Camera
1986          */
1987         camera = new Camera(smgr, *draw_control, gamedef);
1988         if (!camera || !camera->successfullyCreated(*error_message))
1989                 return false;
1990
1991         /* Clouds
1992          */
1993         if (m_cache_enable_clouds) {
1994                 clouds = new Clouds(smgr->getRootSceneNode(), smgr, -1, time(0));
1995                 if (!clouds) {
1996                         *error_message = L"Memory allocation error";
1997                         *error_message += narrow_to_wide(" (clouds)");
1998                         errorstream << wide_to_narrow(*error_message) << std::endl;
1999                         return false;
2000                 }
2001         }
2002
2003         /* Skybox
2004          */
2005         sky = new Sky(smgr->getRootSceneNode(), smgr, -1, texture_src);
2006         skybox = NULL;  // This is used/set later on in the main run loop
2007
2008         local_inventory = new Inventory(itemdef_manager);
2009
2010         if (!(sky && local_inventory)) {
2011                 *error_message = L"Memory allocation error";
2012                 *error_message += narrow_to_wide(" (sky or local inventory)");
2013                 errorstream << wide_to_narrow(*error_message) << std::endl;
2014                 return false;
2015         }
2016
2017         /* Pre-calculated values
2018          */
2019         video::ITexture *t = texture_src->getTexture("crack_anylength.png");
2020         if (t) {
2021                 v2u32 size = t->getOriginalSize();
2022                 crack_animation_length = size.Y / size.X;
2023         } else {
2024                 crack_animation_length = 5;
2025         }
2026
2027         if (!initGui(error_message))
2028                 return false;
2029
2030         /* Set window caption
2031          */
2032         core::stringw str = L"Minetest [";
2033         str += driver->getName();
2034         str += "]";
2035         device->setWindowCaption(str.c_str());
2036
2037         LocalPlayer *player = client->getEnv().getLocalPlayer();
2038         player->hurt_tilt_timer = 0;
2039         player->hurt_tilt_strength = 0;
2040
2041         hud = new Hud(driver, smgr, guienv, gamedef, player, local_inventory);
2042
2043         if (!hud) {
2044                 *error_message = L"Memory error: could not create HUD";
2045                 errorstream << wide_to_narrow(*error_message) << std::endl;
2046                 return false;
2047         }
2048
2049         return true;
2050 }
2051
2052 bool Game::initGui(std::wstring *error_message)
2053 {
2054         // First line of debug text
2055         guitext = guienv->addStaticText(
2056                         L"Minetest",
2057                         core::rect<s32>(0, 0, 0, 0),
2058                         false, false, guiroot);
2059
2060         // Second line of debug text
2061         guitext2 = guienv->addStaticText(
2062                         L"",
2063                         core::rect<s32>(0, 0, 0, 0),
2064                         false, false, guiroot);
2065
2066         // At the middle of the screen
2067         // Object infos are shown in this
2068         guitext_info = guienv->addStaticText(
2069                         L"",
2070                         core::rect<s32>(0, 0, 400, g_fontengine->getTextHeight() * 5 + 5) + v2s32(100, 200),
2071                         false, true, guiroot);
2072
2073         // Status text (displays info when showing and hiding GUI stuff, etc.)
2074         guitext_status = guienv->addStaticText(
2075                         L"<Status>",
2076                         core::rect<s32>(0, 0, 0, 0),
2077                         false, false, guiroot);
2078         guitext_status->setVisible(false);
2079
2080         // Chat text
2081         guitext_chat = guienv->addStaticText(
2082                         L"",
2083                         core::rect<s32>(0, 0, 0, 0),
2084                         //false, false); // Disable word wrap as of now
2085                         false, true, guiroot);
2086         // Remove stale "recent" chat messages from previous connections
2087         chat_backend->clearRecentChat();
2088
2089         // Chat backend and console
2090         gui_chat_console = new GUIChatConsole(guienv, guienv->getRootGUIElement(),
2091                         -1, chat_backend, client);
2092         if (!gui_chat_console) {
2093                 *error_message = L"Could not allocate memory for chat console";
2094                 errorstream << wide_to_narrow(*error_message) << std::endl;
2095                 return false;
2096         }
2097
2098         // Profiler text (size is updated when text is updated)
2099         guitext_profiler = guienv->addStaticText(
2100                         L"<Profiler>",
2101                         core::rect<s32>(0, 0, 0, 0),
2102                         false, false, guiroot);
2103         guitext_profiler->setBackgroundColor(video::SColor(120, 0, 0, 0));
2104         guitext_profiler->setVisible(false);
2105         guitext_profiler->setWordWrap(true);
2106
2107 #ifdef HAVE_TOUCHSCREENGUI
2108
2109         if (g_touchscreengui)
2110                 g_touchscreengui->init(texture_src, porting::getDisplayDensity());
2111
2112 #endif
2113
2114         return true;
2115 }
2116
2117 bool Game::connectToServer(const std::string &playername,
2118                 const std::string &password, std::string *address, u16 port,
2119                 bool *connect_ok, bool *aborted)
2120 {
2121         *connect_ok = false;    // Let's not be overly optimistic
2122         *aborted = false;
2123         bool local_server_mode = false;
2124
2125         showOverlayMessage(wgettext("Resolving address..."), 0, 15);
2126
2127         Address connect_address(0, 0, 0, 0, port);
2128
2129         try {
2130                 connect_address.Resolve(address->c_str());
2131
2132                 if (connect_address.isZero()) { // i.e. INADDR_ANY, IN6ADDR_ANY
2133                         //connect_address.Resolve("localhost");
2134                         if (connect_address.isIPv6()) {
2135                                 IPv6AddressBytes addr_bytes;
2136                                 addr_bytes.bytes[15] = 1;
2137                                 connect_address.setAddress(&addr_bytes);
2138                         } else {
2139                                 connect_address.setAddress(127, 0, 0, 1);
2140                         }
2141                         local_server_mode = true;
2142                 }
2143         } catch (ResolveError &e) {
2144                 *error_message = L"Couldn't resolve address: " + narrow_to_wide(e.what());
2145                 errorstream << wide_to_narrow(*error_message) << std::endl;
2146                 return false;
2147         }
2148
2149         if (connect_address.isIPv6() && !g_settings->getBool("enable_ipv6")) {
2150                 *error_message = L"Unable to connect to " +
2151                                 narrow_to_wide(connect_address.serializeString()) +
2152                                 L" because IPv6 is disabled";
2153                 errorstream << wide_to_narrow(*error_message) << std::endl;
2154                 return false;
2155         }
2156
2157         client = new Client(device,
2158                         playername.c_str(), password,
2159                         *draw_control, texture_src, shader_src,
2160                         itemdef_manager, nodedef_manager, sound, eventmgr,
2161                         connect_address.isIPv6());
2162
2163         if (!client)
2164                 return false;
2165
2166         gamedef = client;       // Client acts as our GameDef
2167
2168         infostream << "Connecting to server at ";
2169         connect_address.print(&infostream);
2170         infostream << std::endl;
2171
2172         client->connect(connect_address, *address,
2173                 simple_singleplayer_mode || local_server_mode);
2174
2175         /*
2176                 Wait for server to accept connection
2177         */
2178
2179         try {
2180                 input->clear();
2181
2182                 FpsControl fps_control = { 0 };
2183                 f32 dtime; // in seconds
2184
2185                 while (device->run()) {
2186
2187                         limitFps(&fps_control, &dtime);
2188
2189                         // Update client and server
2190                         client->step(dtime);
2191
2192                         if (server != NULL)
2193                                 server->step(dtime);
2194
2195                         // End condition
2196                         if (client->getState() == LC_Init) {
2197                                 *connect_ok = true;
2198                                 break;
2199                         }
2200
2201                         // Break conditions
2202                         if (client->accessDenied()) {
2203                                 *error_message = L"Access denied. Reason: "
2204                                                 + client->accessDeniedReason();
2205                                 errorstream << wide_to_narrow(*error_message) << std::endl;
2206                                 break;
2207                         }
2208
2209                         if (input->wasKeyDown(EscapeKey) || input->wasKeyDown(CancelKey)) {
2210                                 *aborted = true;
2211                                 infostream << "Connect aborted [Escape]" << std::endl;
2212                                 break;
2213                         }
2214
2215                         // Update status
2216                         showOverlayMessage(wgettext("Connecting to server..."), dtime, 20);
2217                 }
2218         } catch (con::PeerNotFoundException &e) {
2219                 // TODO: Should something be done here? At least an info/error
2220                 // message?
2221                 return false;
2222         }
2223
2224         return true;
2225 }
2226
2227 bool Game::getServerContent(bool *aborted)
2228 {
2229         input->clear();
2230
2231         FpsControl fps_control = { 0 };
2232         f32 dtime; // in seconds
2233
2234         while (device->run()) {
2235
2236                 limitFps(&fps_control, &dtime);
2237
2238                 // Update client and server
2239                 client->step(dtime);
2240
2241                 if (server != NULL)
2242                         server->step(dtime);
2243
2244                 // End condition
2245                 if (client->mediaReceived() && client->itemdefReceived() &&
2246                                 client->nodedefReceived()) {
2247                         break;
2248                 }
2249
2250                 // Error conditions
2251                 if (client->accessDenied()) {
2252                         *error_message = L"Access denied. Reason: "
2253                                         + client->accessDeniedReason();
2254                         errorstream << wide_to_narrow(*error_message) << std::endl;
2255                         return false;
2256                 }
2257
2258                 if (client->getState() < LC_Init) {
2259                         *error_message = L"Client disconnected";
2260                         errorstream << wide_to_narrow(*error_message) << std::endl;
2261                         return false;
2262                 }
2263
2264                 if (input->wasKeyDown(EscapeKey) || input->wasKeyDown(CancelKey)) {
2265                         *aborted = true;
2266                         infostream << "Connect aborted [Escape]" << std::endl;
2267                         return false;
2268                 }
2269
2270                 // Display status
2271                 int progress = 25;
2272
2273                 if (!client->itemdefReceived()) {
2274                         const wchar_t *text = wgettext("Item definitions...");
2275                         progress = 25;
2276                         draw_load_screen(text, device, guienv, dtime, progress);
2277                         delete[] text;
2278                 } else if (!client->nodedefReceived()) {
2279                         const wchar_t *text = wgettext("Node definitions...");
2280                         progress = 30;
2281                         draw_load_screen(text, device, guienv, dtime, progress);
2282                         delete[] text;
2283                 } else {
2284                         std::stringstream message;
2285                         message.precision(3);
2286                         message << gettext("Media...");
2287
2288                         if ((USE_CURL == 0) ||
2289                                         (!g_settings->getBool("enable_remote_media_server"))) {
2290                                 float cur = client->getCurRate();
2291                                 std::string cur_unit = gettext(" KB/s");
2292
2293                                 if (cur > 900) {
2294                                         cur /= 1024.0;
2295                                         cur_unit = gettext(" MB/s");
2296                                 }
2297
2298                                 message << " ( " << cur << cur_unit << " )";
2299                         }
2300
2301                         progress = 30 + client->mediaReceiveProgress() * 35 + 0.5;
2302                         draw_load_screen(narrow_to_wide(message.str()), device,
2303                                         guienv, dtime, progress);
2304                 }
2305         }
2306
2307         return true;
2308 }
2309
2310
2311
2312 /****************************************************************************
2313  Run
2314  ****************************************************************************/
2315
2316 inline void Game::updateInteractTimers(GameRunData *args, f32 dtime)
2317 {
2318         if (args->nodig_delay_timer >= 0)
2319                 args->nodig_delay_timer -= dtime;
2320
2321         if (args->object_hit_delay_timer >= 0)
2322                 args->object_hit_delay_timer -= dtime;
2323
2324         args->time_from_last_punch += dtime;
2325 }
2326
2327
2328 /* returns false if game should exit, otherwise true
2329  */
2330 inline bool Game::checkConnection()
2331 {
2332         if (client->accessDenied()) {
2333                 *error_message = L"Access denied. Reason: "
2334                                 + client->accessDeniedReason();
2335                 errorstream << wide_to_narrow(*error_message) << std::endl;
2336                 return false;
2337         }
2338
2339         return true;
2340 }
2341
2342
2343 /* returns false if game should exit, otherwise true
2344  */
2345 inline bool Game::handleCallbacks()
2346 {
2347         if (g_gamecallback->disconnect_requested) {
2348                 g_gamecallback->disconnect_requested = false;
2349                 return false;
2350         }
2351
2352         if (g_gamecallback->changepassword_requested) {
2353                 (new GUIPasswordChange(guienv, guiroot, -1,
2354                                        &g_menumgr, client))->drop();
2355                 g_gamecallback->changepassword_requested = false;
2356         }
2357
2358         if (g_gamecallback->changevolume_requested) {
2359                 (new GUIVolumeChange(guienv, guiroot, -1,
2360                                      &g_menumgr, client))->drop();
2361                 g_gamecallback->changevolume_requested = false;
2362         }
2363
2364         if (g_gamecallback->keyconfig_requested) {
2365                 (new GUIKeyChangeMenu(guienv, guiroot, -1,
2366                                       &g_menumgr))->drop();
2367                 g_gamecallback->keyconfig_requested = false;
2368         }
2369
2370         if (g_gamecallback->keyconfig_changed) {
2371                 keycache.populate(); // update the cache with new settings
2372                 g_gamecallback->keyconfig_changed = false;
2373         }
2374
2375         return true;
2376 }
2377
2378
2379 void Game::processQueues()
2380 {
2381         texture_src->processQueue();
2382         itemdef_manager->processQueue(gamedef);
2383         shader_src->processQueue();
2384 }
2385
2386
2387 void Game::updateProfilers(const GameRunData &run_data, const RunStats &stats,
2388                 const FpsControl &draw_times, f32 dtime)
2389 {
2390         float profiler_print_interval =
2391                         g_settings->getFloat("profiler_print_interval");
2392         bool print_to_log = true;
2393
2394         if (profiler_print_interval == 0) {
2395                 print_to_log = false;
2396                 profiler_print_interval = 5;
2397         }
2398
2399         if (profiler_interval.step(dtime, profiler_print_interval)) {
2400                 if (print_to_log) {
2401                         infostream << "Profiler:" << std::endl;
2402                         g_profiler->print(infostream);
2403                 }
2404
2405                 update_profiler_gui(guitext_profiler, g_fontengine,
2406                                 run_data.profiler_current_page, run_data.profiler_max_page,
2407                                 driver->getScreenSize().Height);
2408
2409                 g_profiler->clear();
2410         }
2411
2412         addProfilerGraphs(stats, draw_times, dtime);
2413 }
2414
2415
2416 void Game::addProfilerGraphs(const RunStats &stats,
2417                 const FpsControl &draw_times, f32 dtime)
2418 {
2419         g_profiler->graphAdd("mainloop_other",
2420                         draw_times.busy_time / 1000.0f - stats.drawtime / 1000.0f);
2421
2422         if (draw_times.sleep_time != 0)
2423                 g_profiler->graphAdd("mainloop_sleep", draw_times.sleep_time / 1000.0f);
2424         g_profiler->graphAdd("mainloop_dtime", dtime);
2425
2426         g_profiler->add("Elapsed time", dtime);
2427         g_profiler->avg("FPS", 1. / dtime);
2428 }
2429
2430
2431 void Game::updateStats(RunStats *stats, const FpsControl &draw_times,
2432                 f32 dtime)
2433 {
2434
2435         f32 jitter;
2436         Jitter *jp;
2437
2438         /* Time average and jitter calculation
2439          */
2440         jp = &stats->dtime_jitter;
2441         jp->avg = jp->avg * 0.96 + dtime * 0.04;
2442
2443         jitter = dtime - jp->avg;
2444
2445         if (jitter > jp->max)
2446                 jp->max = jitter;
2447
2448         jp->counter += dtime;
2449
2450         if (jp->counter > 0.0) {
2451                 jp->counter -= 3.0;
2452                 jp->max_sample = jp->max;
2453                 jp->max_fraction = jp->max_sample / (jp->avg + 0.001);
2454                 jp->max = 0.0;
2455         }
2456
2457         /* Busytime average and jitter calculation
2458          */
2459         jp = &stats->busy_time_jitter;
2460         jp->avg = jp->avg + draw_times.busy_time * 0.02;
2461
2462         jitter = draw_times.busy_time - jp->avg;
2463
2464         if (jitter > jp->max)
2465                 jp->max = jitter;
2466         if (jitter < jp->min)
2467                 jp->min = jitter;
2468
2469         jp->counter += dtime;
2470
2471         if (jp->counter > 0.0) {
2472                 jp->counter -= 3.0;
2473                 jp->max_sample = jp->max;
2474                 jp->min_sample = jp->min;
2475                 jp->max = 0.0;
2476                 jp->min = 0.0;
2477         }
2478 }
2479
2480
2481
2482 /****************************************************************************
2483  Input handling
2484  ****************************************************************************/
2485
2486 void Game::processUserInput(VolatileRunFlags *flags,
2487                 GameRunData *interact_args, f32 dtime)
2488 {
2489         // Reset input if window not active or some menu is active
2490         if (device->isWindowActive() == false
2491                         || noMenuActive() == false
2492                         || guienv->hasFocus(gui_chat_console)) {
2493                 input->clear();
2494         }
2495
2496         if (!guienv->hasFocus(gui_chat_console) && gui_chat_console->isOpen()) {
2497                 gui_chat_console->closeConsoleAtOnce();
2498         }
2499
2500         // Input handler step() (used by the random input generator)
2501         input->step(dtime);
2502
2503 #ifdef HAVE_TOUCHSCREENGUI
2504
2505         if (g_touchscreengui) {
2506                 g_touchscreengui->step(dtime);
2507         }
2508
2509 #endif
2510 #ifdef __ANDROID__
2511
2512         if (current_formspec != 0)
2513                 current_formspec->getAndroidUIInput();
2514
2515 #endif
2516
2517         // Increase timer for double tap of "keymap_jump"
2518         if (m_cache_doubletap_jump && interact_args->jump_timer <= 0.2)
2519                 interact_args->jump_timer += dtime;
2520
2521         processKeyboardInput(
2522                         flags,
2523                         &interact_args->statustext_time,
2524                         &interact_args->jump_timer,
2525                         &interact_args->reset_jump_timer,
2526                         &interact_args->profiler_current_page,
2527                         interact_args->profiler_max_page);
2528
2529         processItemSelection(&interact_args->new_playeritem);
2530 }
2531
2532
2533 void Game::processKeyboardInput(VolatileRunFlags *flags,
2534                 float *statustext_time,
2535                 float *jump_timer,
2536                 bool *reset_jump_timer,
2537                 u32 *profiler_current_page,
2538                 u32 profiler_max_page)
2539 {
2540
2541         //TimeTaker tt("process kybd input", NULL, PRECISION_NANO);
2542
2543         if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_DROP])) {
2544                 dropSelectedItem();
2545         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_INVENTORY])) {
2546                 openInventory();
2547         } else if (input->wasKeyDown(EscapeKey) || input->wasKeyDown(CancelKey)) {
2548                 show_pause_menu(&current_formspec, client, gamedef, texture_src, device,
2549                                 simple_singleplayer_mode);
2550         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_CHAT])) {
2551                 show_chat_menu(&current_formspec, client, gamedef, texture_src, device,
2552                                 client, "");
2553         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_CMD])) {
2554                 show_chat_menu(&current_formspec, client, gamedef, texture_src, device,
2555                                 client, "/");
2556         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_CONSOLE])) {
2557                 openConsole();
2558         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_FREEMOVE])) {
2559                 toggleFreeMove(statustext_time);
2560         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_JUMP])) {
2561                 toggleFreeMoveAlt(statustext_time, jump_timer);
2562                 *reset_jump_timer = true;
2563         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_FASTMOVE])) {
2564                 toggleFast(statustext_time);
2565         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_NOCLIP])) {
2566                 toggleNoClip(statustext_time);
2567         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_SCREENSHOT])) {
2568                 client->makeScreenshot(device);
2569         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_HUD])) {
2570                 toggleHud(statustext_time, &flags->show_hud);
2571         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_CHAT])) {
2572                 toggleChat(statustext_time, &flags->show_chat);
2573         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_FORCE_FOG_OFF])) {
2574                 toggleFog(statustext_time, &flags->force_fog_off);
2575         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_UPDATE_CAMERA])) {
2576                 toggleUpdateCamera(statustext_time, &flags->disable_camera_update);
2577         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_DEBUG])) {
2578                 toggleDebug(statustext_time, &flags->show_debug, &flags->show_profiler_graph);
2579         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_TOGGLE_PROFILER])) {
2580                 toggleProfiler(statustext_time, profiler_current_page, profiler_max_page);
2581         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_INCREASE_VIEWING_RANGE])) {
2582                 increaseViewRange(statustext_time);
2583         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_DECREASE_VIEWING_RANGE])) {
2584                 decreaseViewRange(statustext_time);
2585         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_RANGESELECT])) {
2586                 toggleFullViewRange(statustext_time);
2587         } else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_QUICKTUNE_NEXT]))
2588                 quicktune->next();
2589         else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_QUICKTUNE_PREV]))
2590                 quicktune->prev();
2591         else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_QUICKTUNE_INC]))
2592                 quicktune->inc();
2593         else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_QUICKTUNE_DEC]))
2594                 quicktune->dec();
2595         else if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_DEBUG_STACKS])) {
2596                 // Print debug stacks
2597                 dstream << "-----------------------------------------"
2598                         << std::endl;
2599                 dstream << DTIME << "Printing debug stacks:" << std::endl;
2600                 dstream << "-----------------------------------------"
2601                         << std::endl;
2602                 debug_stacks_print();
2603         }
2604
2605         if (!input->isKeyDown(getKeySetting("keymap_jump")) && *reset_jump_timer) {
2606                 *reset_jump_timer = false;
2607                 *jump_timer = 0.0;
2608         }
2609
2610         //tt.stop();
2611
2612         if (quicktune->hasMessage()) {
2613                 std::string msg = quicktune->getMessage();
2614                 statustext = narrow_to_wide(msg);
2615                 *statustext_time = 0;
2616         }
2617 }
2618
2619
2620 void Game::processItemSelection(u16 *new_playeritem)
2621 {
2622         LocalPlayer *player = client->getEnv().getLocalPlayer();
2623
2624         /* Item selection using mouse wheel
2625          */
2626         *new_playeritem = client->getPlayerItem();
2627
2628         s32 wheel = input->getMouseWheel();
2629         u16 max_item = MYMIN(PLAYER_INVENTORY_SIZE - 1,
2630                                  player->hud_hotbar_itemcount - 1);
2631
2632         if (wheel < 0)
2633                 *new_playeritem = *new_playeritem < max_item ? *new_playeritem + 1 : 0;
2634         else if (wheel > 0)
2635                 *new_playeritem = *new_playeritem > 0 ? *new_playeritem - 1 : max_item;
2636         // else wheel == 0
2637
2638
2639         /* Item selection using keyboard
2640          */
2641         for (u16 i = 0; i < 10; i++) {
2642                 static const KeyPress *item_keys[10] = {
2643                         NumberKey + 1, NumberKey + 2, NumberKey + 3, NumberKey + 4,
2644                         NumberKey + 5, NumberKey + 6, NumberKey + 7, NumberKey + 8,
2645                         NumberKey + 9, NumberKey + 0,
2646                 };
2647
2648                 if (input->wasKeyDown(*item_keys[i])) {
2649                         if (i < PLAYER_INVENTORY_SIZE && i < player->hud_hotbar_itemcount) {
2650                                 *new_playeritem = i;
2651                                 infostream << "Selected item: " << new_playeritem << std::endl;
2652                         }
2653                         break;
2654                 }
2655         }
2656 }
2657
2658
2659 void Game::dropSelectedItem()
2660 {
2661         IDropAction *a = new IDropAction();
2662         a->count = 0;
2663         a->from_inv.setCurrentPlayer();
2664         a->from_list = "main";
2665         a->from_i = client->getPlayerItem();
2666         client->inventoryAction(a);
2667 }
2668
2669
2670 void Game::openInventory()
2671 {
2672         /*
2673          * Don't permit to open inventory is CAO or player doesn't exists.
2674          * This prevent showing an empty inventory at player load
2675          */
2676
2677         LocalPlayer *player = client->getEnv().getLocalPlayer();
2678         if (player == NULL || player->getCAO() == NULL)
2679                 return;
2680
2681         infostream << "the_game: " << "Launching inventory" << std::endl;
2682
2683         PlayerInventoryFormSource *fs_src = new PlayerInventoryFormSource(client);
2684         TextDest *txt_dst = new TextDestPlayerInventory(client);
2685
2686         create_formspec_menu(&current_formspec, client, gamedef, texture_src,
2687                         device, fs_src, txt_dst, client);
2688
2689         InventoryLocation inventoryloc;
2690         inventoryloc.setCurrentPlayer();
2691         current_formspec->setFormSpec(fs_src->getForm(), inventoryloc);
2692 }
2693
2694
2695 void Game::openConsole()
2696 {
2697         if (!gui_chat_console->isOpenInhibited()) {
2698                 // Open up to over half of the screen
2699                 gui_chat_console->openConsole(0.6);
2700                 guienv->setFocus(gui_chat_console);
2701         }
2702 }
2703
2704
2705 void Game::toggleFreeMove(float *statustext_time)
2706 {
2707         static const wchar_t *msg[] = { L"free_move disabled", L"free_move enabled" };
2708
2709         bool free_move = !g_settings->getBool("free_move");
2710         g_settings->set("free_move", bool_to_cstr(free_move));
2711
2712         *statustext_time = 0;
2713         statustext = msg[free_move];
2714         if (free_move && !client->checkPrivilege("fly"))
2715                 statustext += L" (note: no 'fly' privilege)";
2716 }
2717
2718
2719 void Game::toggleFreeMoveAlt(float *statustext_time, float *jump_timer)
2720 {
2721         if (m_cache_doubletap_jump && *jump_timer < 0.2f)
2722                 toggleFreeMove(statustext_time);
2723 }
2724
2725
2726 void Game::toggleFast(float *statustext_time)
2727 {
2728         static const wchar_t *msg[] = { L"fast_move disabled", L"fast_move enabled" };
2729         bool fast_move = !g_settings->getBool("fast_move");
2730         g_settings->set("fast_move", bool_to_cstr(fast_move));
2731
2732         *statustext_time = 0;
2733         statustext = msg[fast_move];
2734
2735         if (fast_move && !client->checkPrivilege("fast"))
2736                 statustext += L" (note: no 'fast' privilege)";
2737 }
2738
2739
2740 void Game::toggleNoClip(float *statustext_time)
2741 {
2742         static const wchar_t *msg[] = { L"noclip disabled", L"noclip enabled" };
2743         bool noclip = !g_settings->getBool("noclip");
2744         g_settings->set("noclip", bool_to_cstr(noclip));
2745
2746         *statustext_time = 0;
2747         statustext = msg[noclip];
2748
2749         if (noclip && !client->checkPrivilege("noclip"))
2750                 statustext += L" (note: no 'noclip' privilege)";
2751 }
2752
2753
2754 void Game::toggleChat(float *statustext_time, bool *flag)
2755 {
2756         static const wchar_t *msg[] = { L"Chat hidden", L"Chat shown" };
2757
2758         *flag = !*flag;
2759         *statustext_time = 0;
2760         statustext = msg[*flag];
2761 }
2762
2763
2764 void Game::toggleHud(float *statustext_time, bool *flag)
2765 {
2766         static const wchar_t *msg[] = { L"HUD hidden", L"HUD shown" };
2767
2768         *flag = !*flag;
2769         *statustext_time = 0;
2770         statustext = msg[*flag];
2771         if (g_settings->getBool("enable_node_highlighting"))
2772                 client->setHighlighted(client->getHighlighted(), *flag);
2773 }
2774
2775
2776 void Game::toggleFog(float *statustext_time, bool *flag)
2777 {
2778         static const wchar_t *msg[] = { L"Fog enabled", L"Fog disabled" };
2779
2780         *flag = !*flag;
2781         *statustext_time = 0;
2782         statustext = msg[*flag];
2783 }
2784
2785
2786 void Game::toggleDebug(float *statustext_time, bool *show_debug,
2787                 bool *show_profiler_graph)
2788 {
2789         // Initial / 3x toggle: Chat only
2790         // 1x toggle: Debug text with chat
2791         // 2x toggle: Debug text with profiler graph
2792         if (!*show_debug) {
2793                 *show_debug = true;
2794                 *show_profiler_graph = false;
2795                 statustext = L"Debug info shown";
2796         } else if (*show_profiler_graph) {
2797                 *show_debug = false;
2798                 *show_profiler_graph = false;
2799                 statustext = L"Debug info and profiler graph hidden";
2800         } else {
2801                 *show_profiler_graph = true;
2802                 statustext = L"Profiler graph shown";
2803         }
2804         *statustext_time = 0;
2805 }
2806
2807
2808 void Game::toggleUpdateCamera(float *statustext_time, bool *flag)
2809 {
2810         static const wchar_t *msg[] = {
2811                 L"Camera update enabled",
2812                 L"Camera update disabled"
2813         };
2814
2815         *flag = !*flag;
2816         *statustext_time = 0;
2817         statustext = msg[*flag];
2818 }
2819
2820
2821 void Game::toggleProfiler(float *statustext_time, u32 *profiler_current_page,
2822                 u32 profiler_max_page)
2823 {
2824         *profiler_current_page = (*profiler_current_page + 1) % (profiler_max_page + 1);
2825
2826         // FIXME: This updates the profiler with incomplete values
2827         update_profiler_gui(guitext_profiler, g_fontengine, *profiler_current_page,
2828                         profiler_max_page, driver->getScreenSize().Height);
2829
2830         if (*profiler_current_page != 0) {
2831                 std::wstringstream sstr;
2832                 sstr << "Profiler shown (page " << *profiler_current_page
2833                      << " of " << profiler_max_page << ")";
2834                 statustext = sstr.str();
2835         } else {
2836                 statustext = L"Profiler hidden";
2837         }
2838         *statustext_time = 0;
2839 }
2840
2841
2842 void Game::increaseViewRange(float *statustext_time)
2843 {
2844         s16 range = g_settings->getS16("viewing_range_nodes_min");
2845         s16 range_new = range + 10;
2846         g_settings->set("viewing_range_nodes_min", itos(range_new));
2847         statustext = narrow_to_wide("Minimum viewing range changed to "
2848                         + itos(range_new));
2849         *statustext_time = 0;
2850 }
2851
2852
2853 void Game::decreaseViewRange(float *statustext_time)
2854 {
2855         s16 range = g_settings->getS16("viewing_range_nodes_min");
2856         s16 range_new = range - 10;
2857
2858         if (range_new < 0)
2859                 range_new = range;
2860
2861         g_settings->set("viewing_range_nodes_min", itos(range_new));
2862         statustext = narrow_to_wide("Minimum viewing range changed to "
2863                         + itos(range_new));
2864         *statustext_time = 0;
2865 }
2866
2867
2868 void Game::toggleFullViewRange(float *statustext_time)
2869 {
2870         static const wchar_t *msg[] = {
2871                 L"Disabled full viewing range",
2872                 L"Enabled full viewing range"
2873         };
2874
2875         draw_control->range_all = !draw_control->range_all;
2876         infostream << msg[draw_control->range_all] << std::endl;
2877         statustext = msg[draw_control->range_all];
2878         *statustext_time = 0;
2879 }
2880
2881
2882 void Game::updateCameraDirection(CameraOrientation *cam,
2883                 VolatileRunFlags *flags)
2884 {
2885         if ((device->isWindowActive() && noMenuActive()) || random_input) {
2886
2887 #ifndef __ANDROID__
2888                 if (!random_input) {
2889                         // Mac OSX gets upset if this is set every frame
2890                         if (device->getCursorControl()->isVisible())
2891                                 device->getCursorControl()->setVisible(false);
2892                 }
2893 #endif
2894
2895                 if (flags->first_loop_after_window_activation)
2896                         flags->first_loop_after_window_activation = false;
2897                 else
2898                         updateCameraOrientation(cam, *flags);
2899
2900                 input->setMousePos((driver->getScreenSize().Width / 2),
2901                                 (driver->getScreenSize().Height / 2));
2902         } else {
2903
2904 #ifndef ANDROID
2905                 // Mac OSX gets upset if this is set every frame
2906                 if (device->getCursorControl()->isVisible() == false)
2907                         device->getCursorControl()->setVisible(true);
2908 #endif
2909
2910                 if (!flags->first_loop_after_window_activation)
2911                         flags->first_loop_after_window_activation = true;
2912
2913         }
2914 }
2915
2916
2917 void Game::updateCameraOrientation(CameraOrientation *cam,
2918                 const VolatileRunFlags &flags)
2919 {
2920 #ifdef HAVE_TOUCHSCREENGUI
2921         if (g_touchscreengui) {
2922                 cam->camera_yaw   = g_touchscreengui->getYaw();
2923                 cam->camera_pitch = g_touchscreengui->getPitch();
2924         } else {
2925 #endif
2926                 s32 dx = input->getMousePos().X - (driver->getScreenSize().Width / 2);
2927                 s32 dy = input->getMousePos().Y - (driver->getScreenSize().Height / 2);
2928
2929                 if (flags.invert_mouse
2930                                 || camera->getCameraMode() == CAMERA_MODE_THIRD_FRONT) {
2931                         dy = -dy;
2932                 }
2933
2934                 cam->camera_yaw   -= dx * m_cache_mouse_sensitivity;
2935                 cam->camera_pitch += dy * m_cache_mouse_sensitivity;
2936
2937 #ifdef HAVE_TOUCHSCREENGUI
2938         }
2939 #endif
2940
2941         cam->camera_pitch = rangelim(cam->camera_pitch, -89.5, 89.5);
2942 }
2943
2944
2945 void Game::updatePlayerControl(const CameraOrientation &cam)
2946 {
2947         //TimeTaker tt("update player control", NULL, PRECISION_NANO);
2948
2949         PlayerControl control(
2950                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_FORWARD]),
2951                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_BACKWARD]),
2952                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_LEFT]),
2953                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_RIGHT]),
2954                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_JUMP]),
2955                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_SPECIAL1]),
2956                 input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_SNEAK]),
2957                 input->getLeftState(),
2958                 input->getRightState(),
2959                 cam.camera_pitch,
2960                 cam.camera_yaw
2961         );
2962         client->setPlayerControl(control);
2963         LocalPlayer *player = client->getEnv().getLocalPlayer();
2964         player->keyPressed =
2965                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_FORWARD])  & 0x1) << 0) |
2966                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_BACKWARD]) & 0x1) << 1) |
2967                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_LEFT])     & 0x1) << 2) |
2968                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_RIGHT])    & 0x1) << 3) |
2969                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_JUMP])     & 0x1) << 4) |
2970                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_SPECIAL1]) & 0x1) << 5) |
2971                 ( (u32)(input->isKeyDown(keycache.key[KeyCache::KEYMAP_ID_SNEAK])    & 0x1) << 6) |
2972                 ( (u32)(input->getLeftState()                                        & 0x1) << 7) |
2973                 ( (u32)(input->getRightState()                                       & 0x1) << 8
2974         );
2975
2976         //tt.stop();
2977 }
2978
2979
2980 inline void Game::step(f32 *dtime)
2981 {
2982         bool can_be_and_is_paused =
2983                         (simple_singleplayer_mode && g_menumgr.pausesGame());
2984
2985         if (can_be_and_is_paused) {     // This is for a singleplayer server
2986                 *dtime = 0;             // No time passes
2987         } else {
2988                 if (server != NULL) {
2989                         //TimeTaker timer("server->step(dtime)");
2990                         server->step(*dtime);
2991                 }
2992
2993                 //TimeTaker timer("client.step(dtime)");
2994                 client->step(*dtime);
2995         }
2996 }
2997
2998
2999 void Game::processClientEvents(CameraOrientation *cam, float *damage_flash)
3000 {
3001         ClientEvent event = client->getClientEvent();
3002
3003         LocalPlayer *player = client->getEnv().getLocalPlayer();
3004
3005         for ( ; event.type != CE_NONE; event = client->getClientEvent()) {
3006
3007                 if (event.type == CE_PLAYER_DAMAGE &&
3008                                 client->getHP() != 0) {
3009                         //u16 damage = event.player_damage.amount;
3010                         //infostream<<"Player damage: "<<damage<<std::endl;
3011
3012                         *damage_flash += 100.0;
3013                         *damage_flash += 8.0 * event.player_damage.amount;
3014
3015                         player->hurt_tilt_timer = 1.5;
3016                         player->hurt_tilt_strength = event.player_damage.amount / 4;
3017                         player->hurt_tilt_strength = rangelim(player->hurt_tilt_strength, 1.0, 4.0);
3018
3019                         MtEvent *e = new SimpleTriggerEvent("PlayerDamage");
3020                         gamedef->event()->put(e);
3021                 } else if (event.type == CE_PLAYER_FORCE_MOVE) {
3022                         cam->camera_yaw = event.player_force_move.yaw;
3023                         cam->camera_pitch = event.player_force_move.pitch;
3024                 } else if (event.type == CE_DEATHSCREEN) {
3025                         show_deathscreen(&current_formspec, client, gamedef, texture_src,
3026                                          device, client);
3027
3028                         chat_backend->addMessage(L"", L"You died.");
3029
3030                         /* Handle visualization */
3031                         *damage_flash = 0;
3032                         player->hurt_tilt_timer = 0;
3033                         player->hurt_tilt_strength = 0;
3034
3035                 } else if (event.type == CE_SHOW_FORMSPEC) {
3036                         FormspecFormSource *fs_src =
3037                                 new FormspecFormSource(*(event.show_formspec.formspec));
3038                         TextDestPlayerInventory *txt_dst =
3039                                 new TextDestPlayerInventory(client, *(event.show_formspec.formname));
3040
3041                         create_formspec_menu(&current_formspec, client, gamedef,
3042                                              texture_src, device, fs_src, txt_dst, client);
3043
3044                         delete(event.show_formspec.formspec);
3045                         delete(event.show_formspec.formname);
3046                 } else if ((event.type == CE_SPAWN_PARTICLE) ||
3047                                 (event.type == CE_ADD_PARTICLESPAWNER) ||
3048                                 (event.type == CE_DELETE_PARTICLESPAWNER)) {
3049                         client->getParticleManager()->handleParticleEvent(&event, gamedef,
3050                                         smgr, player);
3051                 } else if (event.type == CE_HUDADD) {
3052                         u32 id = event.hudadd.id;
3053
3054                         LocalPlayer *player = client->getEnv().getLocalPlayer();
3055                         HudElement *e = player->getHud(id);
3056
3057                         if (e != NULL) {
3058                                 delete event.hudadd.pos;
3059                                 delete event.hudadd.name;
3060                                 delete event.hudadd.scale;
3061                                 delete event.hudadd.text;
3062                                 delete event.hudadd.align;
3063                                 delete event.hudadd.offset;
3064                                 delete event.hudadd.world_pos;
3065                                 delete event.hudadd.size;
3066                                 continue;
3067                         }
3068
3069                         e = new HudElement;
3070                         e->type   = (HudElementType)event.hudadd.type;
3071                         e->pos    = *event.hudadd.pos;
3072                         e->name   = *event.hudadd.name;
3073                         e->scale  = *event.hudadd.scale;
3074                         e->text   = *event.hudadd.text;
3075                         e->number = event.hudadd.number;
3076                         e->item   = event.hudadd.item;
3077                         e->dir    = event.hudadd.dir;
3078                         e->align  = *event.hudadd.align;
3079                         e->offset = *event.hudadd.offset;
3080                         e->world_pos = *event.hudadd.world_pos;
3081                         e->size = *event.hudadd.size;
3082
3083                         u32 new_id = player->addHud(e);
3084                         //if this isn't true our huds aren't consistent
3085                         assert(new_id == id);
3086
3087                         delete event.hudadd.pos;
3088                         delete event.hudadd.name;
3089                         delete event.hudadd.scale;
3090                         delete event.hudadd.text;
3091                         delete event.hudadd.align;
3092                         delete event.hudadd.offset;
3093                         delete event.hudadd.world_pos;
3094                         delete event.hudadd.size;
3095                 } else if (event.type == CE_HUDRM) {
3096                         HudElement *e = player->removeHud(event.hudrm.id);
3097
3098                         if (e != NULL)
3099                                 delete(e);
3100                 } else if (event.type == CE_HUDCHANGE) {
3101                         u32 id = event.hudchange.id;
3102                         HudElement *e = player->getHud(id);
3103
3104                         if (e == NULL) {
3105                                 delete event.hudchange.v3fdata;
3106                                 delete event.hudchange.v2fdata;
3107                                 delete event.hudchange.sdata;
3108                                 delete event.hudchange.v2s32data;
3109                                 continue;
3110                         }
3111
3112                         switch (event.hudchange.stat) {
3113                         case HUD_STAT_POS:
3114                                 e->pos = *event.hudchange.v2fdata;
3115                                 break;
3116
3117                         case HUD_STAT_NAME:
3118                                 e->name = *event.hudchange.sdata;
3119                                 break;
3120
3121                         case HUD_STAT_SCALE:
3122                                 e->scale = *event.hudchange.v2fdata;
3123                                 break;
3124
3125                         case HUD_STAT_TEXT:
3126                                 e->text = *event.hudchange.sdata;
3127                                 break;
3128
3129                         case HUD_STAT_NUMBER:
3130                                 e->number = event.hudchange.data;
3131                                 break;
3132
3133                         case HUD_STAT_ITEM:
3134                                 e->item = event.hudchange.data;
3135                                 break;
3136
3137                         case HUD_STAT_DIR:
3138                                 e->dir = event.hudchange.data;
3139                                 break;
3140
3141                         case HUD_STAT_ALIGN:
3142                                 e->align = *event.hudchange.v2fdata;
3143                                 break;
3144
3145                         case HUD_STAT_OFFSET:
3146                                 e->offset = *event.hudchange.v2fdata;
3147                                 break;
3148
3149                         case HUD_STAT_WORLD_POS:
3150                                 e->world_pos = *event.hudchange.v3fdata;
3151                                 break;
3152
3153                         case HUD_STAT_SIZE:
3154                                 e->size = *event.hudchange.v2s32data;
3155                                 break;
3156                         }
3157
3158                         delete event.hudchange.v3fdata;
3159                         delete event.hudchange.v2fdata;
3160                         delete event.hudchange.sdata;
3161                         delete event.hudchange.v2s32data;
3162                 } else if (event.type == CE_SET_SKY) {
3163                         sky->setVisible(false);
3164
3165                         if (skybox) {
3166                                 skybox->remove();
3167                                 skybox = NULL;
3168                         }
3169
3170                         // Handle according to type
3171                         if (*event.set_sky.type == "regular") {
3172                                 sky->setVisible(true);
3173                         } else if (*event.set_sky.type == "skybox" &&
3174                                         event.set_sky.params->size() == 6) {
3175                                 sky->setFallbackBgColor(*event.set_sky.bgcolor);
3176                                 skybox = smgr->addSkyBoxSceneNode(
3177                                                  texture_src->getTexture((*event.set_sky.params)[0]),
3178                                                  texture_src->getTexture((*event.set_sky.params)[1]),
3179                                                  texture_src->getTexture((*event.set_sky.params)[2]),
3180                                                  texture_src->getTexture((*event.set_sky.params)[3]),
3181                                                  texture_src->getTexture((*event.set_sky.params)[4]),
3182                                                  texture_src->getTexture((*event.set_sky.params)[5]));
3183                         }
3184                         // Handle everything else as plain color
3185                         else {
3186                                 if (*event.set_sky.type != "plain")
3187                                         infostream << "Unknown sky type: "
3188                                                    << (*event.set_sky.type) << std::endl;
3189
3190                                 sky->setFallbackBgColor(*event.set_sky.bgcolor);
3191                         }
3192
3193                         delete event.set_sky.bgcolor;
3194                         delete event.set_sky.type;
3195                         delete event.set_sky.params;
3196                 } else if (event.type == CE_OVERRIDE_DAY_NIGHT_RATIO) {
3197                         bool enable = event.override_day_night_ratio.do_override;
3198                         u32 value = event.override_day_night_ratio.ratio_f * 1000;
3199                         client->getEnv().setDayNightRatioOverride(enable, value);
3200                 }
3201         }
3202 }
3203
3204
3205 void Game::updateCamera(VolatileRunFlags *flags, u32 busy_time,
3206                 f32 dtime, float time_from_last_punch)
3207 {
3208         LocalPlayer *player = client->getEnv().getLocalPlayer();
3209
3210         /*
3211                 For interaction purposes, get info about the held item
3212                 - What item is it?
3213                 - Is it a usable item?
3214                 - Can it point to liquids?
3215         */
3216         ItemStack playeritem;
3217         {
3218                 InventoryList *mlist = local_inventory->getList("main");
3219
3220                 if (mlist && client->getPlayerItem() < mlist->getSize())
3221                         playeritem = mlist->getItem(client->getPlayerItem());
3222         }
3223
3224         ToolCapabilities playeritem_toolcap =
3225                 playeritem.getToolCapabilities(itemdef_manager);
3226
3227         v3s16 old_camera_offset = camera->getOffset();
3228
3229         if (input->wasKeyDown(keycache.key[KeyCache::KEYMAP_ID_CAMERA_MODE])) {
3230                 GenericCAO *playercao = player->getCAO();
3231
3232                 // If playercao not loaded, don't change camera
3233                 if (playercao == NULL)
3234                         return;
3235
3236                 camera->toggleCameraMode();
3237
3238                 playercao->setVisible(camera->getCameraMode() > CAMERA_MODE_FIRST);
3239         }
3240
3241         float full_punch_interval = playeritem_toolcap.full_punch_interval;
3242         float tool_reload_ratio = time_from_last_punch / full_punch_interval;
3243
3244         tool_reload_ratio = MYMIN(tool_reload_ratio, 1.0);
3245         camera->update(player, dtime, busy_time / 1000.0f, tool_reload_ratio,
3246                       client->getEnv());
3247         camera->step(dtime);
3248
3249         v3f camera_position = camera->getPosition();
3250         v3f camera_direction = camera->getDirection();
3251         f32 camera_fov = camera->getFovMax();
3252         v3s16 camera_offset = camera->getOffset();
3253
3254         flags->camera_offset_changed = (camera_offset != old_camera_offset);
3255
3256         if (!flags->disable_camera_update) {
3257                 client->getEnv().getClientMap().updateCamera(camera_position,
3258                                 camera_direction, camera_fov, camera_offset);
3259
3260                 if (flags->camera_offset_changed) {
3261                         client->updateCameraOffset(camera_offset);
3262                         client->getEnv().updateCameraOffset(camera_offset);
3263
3264                         if (clouds)
3265                                 clouds->updateCameraOffset(camera_offset);
3266                 }
3267         }
3268 }
3269
3270
3271 void Game::updateSound(f32 dtime)
3272 {
3273         // Update sound listener
3274         v3s16 camera_offset = camera->getOffset();
3275         sound->updateListener(camera->getCameraNode()->getPosition() + intToFloat(camera_offset, BS),
3276                               v3f(0, 0, 0), // velocity
3277                               camera->getDirection(),
3278                               camera->getCameraNode()->getUpVector());
3279         sound->setListenerGain(g_settings->getFloat("sound_volume"));
3280
3281
3282         //      Update sound maker
3283         soundmaker->step(dtime);
3284
3285         LocalPlayer *player = client->getEnv().getLocalPlayer();
3286
3287         ClientMap &map = client->getEnv().getClientMap();
3288         MapNode n = map.getNodeNoEx(player->getStandingNodePos());
3289         soundmaker->m_player_step_sound = nodedef_manager->get(n).sound_footstep;
3290 }
3291
3292
3293 void Game::processPlayerInteraction(std::vector<aabb3f> &highlight_boxes,
3294                 GameRunData *runData, f32 dtime, bool show_hud, bool show_debug)
3295 {
3296         LocalPlayer *player = client->getEnv().getLocalPlayer();
3297
3298         ItemStack playeritem;
3299         {
3300                 InventoryList *mlist = local_inventory->getList("main");
3301
3302                 if (mlist && client->getPlayerItem() < mlist->getSize())
3303                         playeritem = mlist->getItem(client->getPlayerItem());
3304         }
3305
3306         const ItemDefinition &playeritem_def =
3307                         playeritem.getDefinition(itemdef_manager);
3308
3309         v3f player_position  = player->getPosition();
3310         v3f camera_position  = camera->getPosition();
3311         v3f camera_direction = camera->getDirection();
3312         v3s16 camera_offset  = camera->getOffset();
3313
3314
3315         /*
3316                 Calculate what block is the crosshair pointing to
3317         */
3318
3319         f32 d = playeritem_def.range; // max. distance
3320         f32 d_hand = itemdef_manager->get("").range;
3321
3322         if (d < 0 && d_hand >= 0)
3323                 d = d_hand;
3324         else if (d < 0)
3325                 d = 4.0;
3326
3327         core::line3d<f32> shootline;
3328
3329         if (camera->getCameraMode() != CAMERA_MODE_THIRD_FRONT) {
3330
3331                 shootline = core::line3d<f32>(camera_position,
3332                                                 camera_position + camera_direction * BS * (d + 1));
3333
3334         } else {
3335             // prevent player pointing anything in front-view
3336                 if (camera->getCameraMode() == CAMERA_MODE_THIRD_FRONT)
3337                         shootline = core::line3d<f32>(0, 0, 0, 0, 0, 0);
3338         }
3339
3340 #ifdef HAVE_TOUCHSCREENGUI
3341
3342         if ((g_settings->getBool("touchtarget")) && (g_touchscreengui)) {
3343                 shootline = g_touchscreengui->getShootline();
3344                 shootline.start += intToFloat(camera_offset, BS);
3345                 shootline.end += intToFloat(camera_offset, BS);
3346         }
3347
3348 #endif
3349
3350         PointedThing pointed = getPointedThing(
3351                         // input
3352                         client, player_position, camera_direction,
3353                         camera_position, shootline, d,
3354                         playeritem_def.liquids_pointable,
3355                         !runData->ldown_for_dig,
3356                         camera_offset,
3357                         // output
3358                         highlight_boxes,
3359                         runData->selected_object);
3360
3361         if (pointed != runData->pointed_old) {
3362                 infostream << "Pointing at " << pointed.dump() << std::endl;
3363
3364                 if (m_cache_enable_node_highlighting) {
3365                         if (pointed.type == POINTEDTHING_NODE) {
3366                                 client->setHighlighted(pointed.node_undersurface, show_hud);
3367                         } else {
3368                                 client->setHighlighted(pointed.node_undersurface, false);
3369                         }
3370                 }
3371         }
3372
3373         /*
3374                 Stop digging when
3375                 - releasing left mouse button
3376                 - pointing away from node
3377         */
3378         if (runData->digging) {
3379                 if (input->getLeftReleased()) {
3380                         infostream << "Left button released"
3381                                    << " (stopped digging)" << std::endl;
3382                         runData->digging = false;
3383                 } else if (pointed != runData->pointed_old) {
3384                         if (pointed.type == POINTEDTHING_NODE
3385                                         && runData->pointed_old.type == POINTEDTHING_NODE
3386                                         && pointed.node_undersurface
3387                                                         == runData->pointed_old.node_undersurface) {
3388                                 // Still pointing to the same node, but a different face.
3389                                 // Don't reset.
3390                         } else {
3391                                 infostream << "Pointing away from node"
3392                                            << " (stopped digging)" << std::endl;
3393                                 runData->digging = false;
3394                         }
3395                 }
3396
3397                 if (!runData->digging) {
3398                         client->interact(1, runData->pointed_old);
3399                         client->setCrack(-1, v3s16(0, 0, 0));
3400                         runData->dig_time = 0.0;
3401                 }
3402         }
3403
3404         if (!runData->digging && runData->ldown_for_dig && !input->getLeftState()) {
3405                 runData->ldown_for_dig = false;
3406         }
3407
3408         runData->left_punch = false;
3409
3410         soundmaker->m_player_leftpunch_sound.name = "";
3411
3412         if (input->getRightState())
3413                 runData->repeat_rightclick_timer += dtime;
3414         else
3415                 runData->repeat_rightclick_timer = 0;
3416
3417         if (playeritem_def.usable && input->getLeftState()) {
3418                 if (input->getLeftClicked())
3419                         client->interact(4, pointed);
3420         } else if (pointed.type == POINTEDTHING_NODE) {
3421                 ToolCapabilities playeritem_toolcap =
3422                                 playeritem.getToolCapabilities(itemdef_manager);
3423                 handlePointingAtNode(runData, pointed, playeritem_def,
3424                                 playeritem_toolcap, dtime);
3425         } else if (pointed.type == POINTEDTHING_OBJECT) {
3426                 handlePointingAtObject(runData, pointed, playeritem,
3427                                 player_position, show_debug);
3428         } else if (input->getLeftState()) {
3429                 // When button is held down in air, show continuous animation
3430                 runData->left_punch = true;
3431         }
3432
3433         runData->pointed_old = pointed;
3434
3435         if (runData->left_punch || input->getLeftClicked())
3436                 camera->setDigging(0); // left click animation
3437
3438         input->resetLeftClicked();
3439         input->resetRightClicked();
3440
3441         input->resetLeftReleased();
3442         input->resetRightReleased();
3443 }
3444
3445
3446 void Game::handlePointingAtNode(GameRunData *runData,
3447                 const PointedThing &pointed, const ItemDefinition &playeritem_def,
3448                 const ToolCapabilities &playeritem_toolcap, f32 dtime)
3449 {
3450         v3s16 nodepos = pointed.node_undersurface;
3451         v3s16 neighbourpos = pointed.node_abovesurface;
3452
3453         /*
3454                 Check information text of node
3455         */
3456
3457         ClientMap &map = client->getEnv().getClientMap();
3458         NodeMetadata *meta = map.getNodeMetadata(nodepos);
3459
3460         if (meta) {
3461                 infotext = narrow_to_wide(meta->getString("infotext"));
3462         } else {
3463                 MapNode n = map.getNodeNoEx(nodepos);
3464
3465                 if (nodedef_manager->get(n).tiledef[0].name == "unknown_node.png") {
3466                         infotext = L"Unknown node: ";
3467                         infotext += narrow_to_wide(nodedef_manager->get(n).name);
3468                 }
3469         }
3470
3471         if (runData->nodig_delay_timer <= 0.0 && input->getLeftState()
3472                         && client->checkPrivilege("interact")) {
3473                 handleDigging(runData, pointed, nodepos, playeritem_toolcap, dtime);
3474         }
3475
3476         if ((input->getRightClicked() ||
3477                         runData->repeat_rightclick_timer >= m_repeat_right_click_time) &&
3478                         client->checkPrivilege("interact")) {
3479                 runData->repeat_rightclick_timer = 0;
3480                 infostream << "Ground right-clicked" << std::endl;
3481
3482                 if (meta && meta->getString("formspec") != "" && !random_input
3483                                 && !input->isKeyDown(getKeySetting("keymap_sneak"))) {
3484                         infostream << "Launching custom inventory view" << std::endl;
3485
3486                         InventoryLocation inventoryloc;
3487                         inventoryloc.setNodeMeta(nodepos);
3488
3489                         NodeMetadataFormSource *fs_src = new NodeMetadataFormSource(
3490                                 &client->getEnv().getClientMap(), nodepos);
3491                         TextDest *txt_dst = new TextDestNodeMetadata(nodepos, client);
3492
3493                         create_formspec_menu(&current_formspec, client, gamedef,
3494                                              texture_src, device, fs_src, txt_dst, client);
3495
3496                         current_formspec->setFormSpec(meta->getString("formspec"), inventoryloc);
3497                 } else {
3498                         // Report right click to server
3499
3500                         camera->setDigging(1);  // right click animation (always shown for feedback)
3501
3502                         // If the wielded item has node placement prediction,
3503                         // make that happen
3504                         bool placed = nodePlacementPrediction(*client,
3505                                         playeritem_def,
3506                                         nodepos, neighbourpos);
3507
3508                         if (placed) {
3509                                 // Report to server
3510                                 client->interact(3, pointed);
3511                                 // Read the sound
3512                                 soundmaker->m_player_rightpunch_sound =
3513                                                 playeritem_def.sound_place;
3514                         } else {
3515                                 soundmaker->m_player_rightpunch_sound =
3516                                                 SimpleSoundSpec();
3517                         }
3518
3519                         if (playeritem_def.node_placement_prediction == "" ||
3520                                         nodedef_manager->get(map.getNodeNoEx(nodepos)).rightclickable)
3521                                 client->interact(3, pointed); // Report to server
3522                 }
3523         }
3524 }
3525
3526
3527 void Game::handlePointingAtObject(GameRunData *runData,
3528                 const PointedThing &pointed,
3529                 const ItemStack &playeritem,
3530                 const v3f &player_position,
3531                 bool show_debug)
3532 {
3533         infotext = narrow_to_wide(runData->selected_object->infoText());
3534
3535         if (infotext == L"" && show_debug) {
3536                 infotext = narrow_to_wide(runData->selected_object->debugInfoText());
3537         }
3538
3539         if (input->getLeftState()) {
3540                 bool do_punch = false;
3541                 bool do_punch_damage = false;
3542
3543                 if (runData->object_hit_delay_timer <= 0.0) {
3544                         do_punch = true;
3545                         do_punch_damage = true;
3546                         runData->object_hit_delay_timer = object_hit_delay;
3547                 }
3548
3549                 if (input->getLeftClicked())
3550                         do_punch = true;
3551
3552                 if (do_punch) {
3553                         infostream << "Left-clicked object" << std::endl;
3554                         runData->left_punch = true;
3555                 }
3556
3557                 if (do_punch_damage) {
3558                         // Report direct punch
3559                         v3f objpos = runData->selected_object->getPosition();
3560                         v3f dir = (objpos - player_position).normalize();
3561
3562                         bool disable_send = runData->selected_object->directReportPunch(
3563                                         dir, &playeritem, runData->time_from_last_punch);
3564                         runData->time_from_last_punch = 0;
3565
3566                         if (!disable_send)
3567                                 client->interact(0, pointed);
3568                 }
3569         } else if (input->getRightClicked()) {
3570                 infostream << "Right-clicked object" << std::endl;
3571                 client->interact(3, pointed);  // place
3572         }
3573 }
3574
3575
3576 void Game::handleDigging(GameRunData *runData,
3577                 const PointedThing &pointed, const v3s16 &nodepos,
3578                 const ToolCapabilities &playeritem_toolcap, f32 dtime)
3579 {
3580         if (!runData->digging) {
3581                 infostream << "Started digging" << std::endl;
3582                 client->interact(0, pointed);
3583                 runData->digging = true;
3584                 runData->ldown_for_dig = true;
3585         }
3586
3587         LocalPlayer *player = client->getEnv().getLocalPlayer();
3588         ClientMap &map = client->getEnv().getClientMap();
3589         MapNode n = client->getEnv().getClientMap().getNodeNoEx(nodepos);
3590
3591         // NOTE: Similar piece of code exists on the server side for
3592         // cheat detection.
3593         // Get digging parameters
3594         DigParams params = getDigParams(nodedef_manager->get(n).groups,
3595                         &playeritem_toolcap);
3596
3597         // If can't dig, try hand
3598         if (!params.diggable) {
3599                 const ItemDefinition &hand = itemdef_manager->get("");
3600                 const ToolCapabilities *tp = hand.tool_capabilities;
3601
3602                 if (tp)
3603                         params = getDigParams(nodedef_manager->get(n).groups, tp);
3604         }
3605
3606         if (params.diggable == false) {
3607                 // I guess nobody will wait for this long
3608                 runData->dig_time_complete = 10000000.0;
3609         } else {
3610                 runData->dig_time_complete = params.time;
3611
3612                 if (m_cache_enable_particles) {
3613                         const ContentFeatures &features =
3614                                         client->getNodeDefManager()->get(n);
3615                         client->getParticleManager()->addPunchingParticles(gamedef, smgr,
3616                                         player, nodepos, features.tiles);
3617                 }
3618         }
3619
3620         if (runData->dig_time_complete >= 0.001) {
3621                 runData->dig_index = (float)crack_animation_length
3622                                 * runData->dig_time
3623                                 / runData->dig_time_complete;
3624         } else {
3625                 // This is for torches
3626                 runData->dig_index = crack_animation_length;
3627         }
3628
3629         SimpleSoundSpec sound_dig = nodedef_manager->get(n).sound_dig;
3630
3631         if (sound_dig.exists() && params.diggable) {
3632                 if (sound_dig.name == "__group") {
3633                         if (params.main_group != "") {
3634                                 soundmaker->m_player_leftpunch_sound.gain = 0.5;
3635                                 soundmaker->m_player_leftpunch_sound.name =
3636                                                 std::string("default_dig_") +
3637                                                 params.main_group;
3638                         }
3639                 } else {
3640                         soundmaker->m_player_leftpunch_sound = sound_dig;
3641                 }
3642         }
3643
3644         // Don't show cracks if not diggable
3645         if (runData->dig_time_complete >= 100000.0) {
3646         } else if (runData->dig_index < crack_animation_length) {
3647                 //TimeTaker timer("client.setTempMod");
3648                 //infostream<<"dig_index="<<dig_index<<std::endl;
3649                 client->setCrack(runData->dig_index, nodepos);
3650         } else {
3651                 infostream << "Digging completed" << std::endl;
3652                 client->interact(2, pointed);
3653                 client->setCrack(-1, v3s16(0, 0, 0));
3654                 bool is_valid_position;
3655                 MapNode wasnode = map.getNodeNoEx(nodepos, &is_valid_position);
3656                 if (is_valid_position)
3657                         client->removeNode(nodepos);
3658
3659                 if (m_cache_enable_particles) {
3660                         const ContentFeatures &features =
3661                                 client->getNodeDefManager()->get(wasnode);
3662                         client->getParticleManager()->addDiggingParticles(gamedef, smgr,
3663                                         player, nodepos, features.tiles);
3664                 }
3665
3666                 runData->dig_time = 0;
3667                 runData->digging = false;
3668
3669                 runData->nodig_delay_timer =
3670                                 runData->dig_time_complete / (float)crack_animation_length;
3671
3672                 // We don't want a corresponding delay to
3673                 // very time consuming nodes
3674                 if (runData->nodig_delay_timer > 0.3)
3675                         runData->nodig_delay_timer = 0.3;
3676
3677                 // We want a slight delay to very little
3678                 // time consuming nodes
3679                 const float mindelay = 0.15;
3680
3681                 if (runData->nodig_delay_timer < mindelay)
3682                         runData->nodig_delay_timer = mindelay;
3683
3684                 // Send event to trigger sound
3685                 MtEvent *e = new NodeDugEvent(nodepos, wasnode);
3686                 gamedef->event()->put(e);
3687         }
3688
3689         if (runData->dig_time_complete < 100000.0) {
3690                 runData->dig_time += dtime;
3691         } else {
3692                 runData->dig_time = 0;
3693                 client->setCrack(-1, nodepos);
3694         }
3695
3696         camera->setDigging(0);  // left click animation
3697 }
3698
3699
3700 void Game::updateFrame(std::vector<aabb3f> &highlight_boxes,
3701                 ProfilerGraph *graph, RunStats *stats, GameRunData *runData,
3702                 f32 dtime, const VolatileRunFlags &flags, const CameraOrientation &cam)
3703 {
3704         LocalPlayer *player = client->getEnv().getLocalPlayer();
3705
3706         /*
3707                 Fog range
3708         */
3709
3710         if (draw_control->range_all) {
3711                 runData->fog_range = 100000 * BS;
3712         } else {
3713                 runData->fog_range = draw_control->wanted_range * BS
3714                                 + 0.0 * MAP_BLOCKSIZE * BS;
3715                 runData->fog_range = MYMIN(
3716                                 runData->fog_range,
3717                                 (draw_control->farthest_drawn + 20) * BS);
3718                 runData->fog_range *= 0.9;
3719         }
3720
3721         /*
3722                 Calculate general brightness
3723         */
3724         u32 daynight_ratio = client->getEnv().getDayNightRatio();
3725         float time_brightness = decode_light_f((float)daynight_ratio / 1000.0);
3726         float direct_brightness;
3727         bool sunlight_seen;
3728
3729         if (g_settings->getBool("free_move")) {
3730                 direct_brightness = time_brightness;
3731                 sunlight_seen = true;
3732         } else {
3733                 ScopeProfiler sp(g_profiler, "Detecting background light", SPT_AVG);
3734                 float old_brightness = sky->getBrightness();
3735                 direct_brightness = client->getEnv().getClientMap()
3736                                 .getBackgroundBrightness(MYMIN(runData->fog_range * 1.2, 60 * BS),
3737                                         daynight_ratio, (int)(old_brightness * 255.5), &sunlight_seen)
3738                                     / 255.0;
3739         }
3740
3741         float time_of_day = runData->time_of_day;
3742         float time_of_day_smooth = runData->time_of_day_smooth;
3743
3744         time_of_day = client->getEnv().getTimeOfDayF();
3745
3746         const float maxsm = 0.05;
3747         const float todsm = 0.05;
3748
3749         if (fabs(time_of_day - time_of_day_smooth) > maxsm &&
3750                         fabs(time_of_day - time_of_day_smooth + 1.0) > maxsm &&
3751                         fabs(time_of_day - time_of_day_smooth - 1.0) > maxsm)
3752                 time_of_day_smooth = time_of_day;
3753
3754         if (time_of_day_smooth > 0.8 && time_of_day < 0.2)
3755                 time_of_day_smooth = time_of_day_smooth * (1.0 - todsm)
3756                                 + (time_of_day + 1.0) * todsm;
3757         else
3758                 time_of_day_smooth = time_of_day_smooth * (1.0 - todsm)
3759                                 + time_of_day * todsm;
3760
3761         runData->time_of_day = time_of_day;
3762         runData->time_of_day_smooth = time_of_day_smooth;
3763
3764         sky->update(time_of_day_smooth, time_brightness, direct_brightness,
3765                         sunlight_seen, camera->getCameraMode(), player->getYaw(),
3766                         player->getPitch());
3767
3768         /*
3769                 Update clouds
3770         */
3771         if (clouds) {
3772                 v3f player_position = player->getPosition();
3773                 if (sky->getCloudsVisible()) {
3774                         clouds->setVisible(true);
3775                         clouds->step(dtime);
3776                         clouds->update(v2f(player_position.X, player_position.Z),
3777                                        sky->getCloudColor());
3778                 } else {
3779                         clouds->setVisible(false);
3780                 }
3781         }
3782
3783         /*
3784                 Update particles
3785         */
3786         client->getParticleManager()->step(dtime);
3787
3788         /*
3789                 Fog
3790         */
3791
3792         if (m_cache_enable_fog && !flags.force_fog_off) {
3793                 driver->setFog(
3794                                 sky->getBgColor(),
3795                                 video::EFT_FOG_LINEAR,
3796                                 runData->fog_range * 0.4,
3797                                 runData->fog_range * 1.0,
3798                                 0.01,
3799                                 false, // pixel fog
3800                                 false // range fog
3801                 );
3802         } else {
3803                 driver->setFog(
3804                                 sky->getBgColor(),
3805                                 video::EFT_FOG_LINEAR,
3806                                 100000 * BS,
3807                                 110000 * BS,
3808                                 0.01,
3809                                 false, // pixel fog
3810                                 false // range fog
3811                 );
3812         }
3813
3814         /*
3815                 Get chat messages from client
3816         */
3817
3818         v2u32 screensize = driver->getScreenSize();
3819
3820         updateChat(*client, dtime, flags.show_debug, screensize,
3821                         flags.show_chat, runData->profiler_current_page,
3822                         *chat_backend, guitext_chat);
3823
3824         /*
3825                 Inventory
3826         */
3827
3828         if (client->getPlayerItem() != runData->new_playeritem)
3829                 client->selectPlayerItem(runData->new_playeritem);
3830
3831         // Update local inventory if it has changed
3832         if (client->getLocalInventoryUpdated()) {
3833                 //infostream<<"Updating local inventory"<<std::endl;
3834                 client->getLocalInventory(*local_inventory);
3835                 runData->update_wielded_item_trigger = true;
3836         }
3837
3838         if (runData->update_wielded_item_trigger) {
3839                 // Update wielded tool
3840                 InventoryList *mlist = local_inventory->getList("main");
3841
3842                 if (mlist && (client->getPlayerItem() < mlist->getSize())) {
3843                         ItemStack item = mlist->getItem(client->getPlayerItem());
3844                         camera->wield(item);
3845                 }
3846                 runData->update_wielded_item_trigger = false;
3847         }
3848
3849         /*
3850                 Update block draw list every 200ms or when camera direction has
3851                 changed much
3852         */
3853         runData->update_draw_list_timer += dtime;
3854
3855         v3f camera_direction = camera->getDirection();
3856         if (runData->update_draw_list_timer >= 0.2
3857                         || runData->update_draw_list_last_cam_dir.getDistanceFrom(camera_direction) > 0.2
3858                         || flags.camera_offset_changed) {
3859                 runData->update_draw_list_timer = 0;
3860                 client->getEnv().getClientMap().updateDrawList(driver);
3861                 runData->update_draw_list_last_cam_dir = camera_direction;
3862         }
3863
3864         updateGui(&runData->statustext_time, *stats, *runData, dtime, flags, cam);
3865
3866         /*
3867            make sure menu is on top
3868            1. Delete formspec menu reference if menu was removed
3869            2. Else, make sure formspec menu is on top
3870         */
3871         if (current_formspec) {
3872                 if (current_formspec->getReferenceCount() == 1) {
3873                         current_formspec->drop();
3874                         current_formspec = NULL;
3875                 } else if (!noMenuActive()) {
3876                         guiroot->bringToFront(current_formspec);
3877                 }
3878         }
3879
3880         /*
3881                 Drawing begins
3882         */
3883
3884         video::SColor skycolor = sky->getSkyColor();
3885
3886         TimeTaker tt_draw("mainloop: draw");
3887         {
3888                 TimeTaker timer("beginScene");
3889                 driver->beginScene(true, true, skycolor);
3890                 stats->beginscenetime = timer.stop(true);
3891         }
3892
3893         draw_scene(driver, smgr, *camera, *client, player, *hud, guienv,
3894                         highlight_boxes, screensize, skycolor, flags.show_hud);
3895
3896         /*
3897                 Profiler graph
3898         */
3899         if (flags.show_profiler_graph)
3900                 graph->draw(10, screensize.Y - 10, driver, g_fontengine->getFont());
3901
3902         /*
3903                 Damage flash
3904         */
3905         if (runData->damage_flash > 0.0) {
3906                 video::SColor color(std::min(runData->damage_flash, 180.0f),
3907                                 180,
3908                                 0,
3909                                 0);
3910                 driver->draw2DRectangle(color,
3911                                         core::rect<s32>(0, 0, screensize.X, screensize.Y),
3912                                         NULL);
3913
3914                 runData->damage_flash -= 100.0 * dtime;
3915         }
3916
3917         /*
3918                 Damage camera tilt
3919         */
3920         if (player->hurt_tilt_timer > 0.0) {
3921                 player->hurt_tilt_timer -= dtime * 5;
3922
3923                 if (player->hurt_tilt_timer < 0)
3924                         player->hurt_tilt_strength = 0;
3925         }
3926
3927         /*
3928                 End scene
3929         */
3930         {
3931                 TimeTaker timer("endScene");
3932                 driver->endScene();
3933                 stats->endscenetime = timer.stop(true);
3934         }
3935
3936         stats->drawtime = tt_draw.stop(true);
3937         g_profiler->graphAdd("mainloop_draw", stats->drawtime / 1000.0f);
3938 }
3939
3940
3941 inline static const char *yawToDirectionString(int yaw)
3942 {
3943         // NOTE: TODO: This can be done mathematically without the else/else-if
3944         // cascade.
3945
3946         const char *player_direction;
3947
3948         yaw = wrapDegrees_0_360(yaw);
3949
3950         if (yaw >= 45 && yaw < 135)
3951                 player_direction = "West [-X]";
3952         else if (yaw >= 135 && yaw < 225)
3953                 player_direction = "South [-Z]";
3954         else if (yaw >= 225 && yaw < 315)
3955                 player_direction = "East [+X]";
3956         else
3957                 player_direction = "North [+Z]";
3958
3959         return player_direction;
3960 }
3961
3962
3963 void Game::updateGui(float *statustext_time, const RunStats &stats,
3964                 const GameRunData& runData, f32 dtime, const VolatileRunFlags &flags,
3965                 const CameraOrientation &cam)
3966 {
3967         v2u32 screensize = driver->getScreenSize();
3968         LocalPlayer *player = client->getEnv().getLocalPlayer();
3969         v3f player_position = player->getPosition();
3970
3971         if (flags.show_debug) {
3972                 static float drawtime_avg = 0;
3973                 drawtime_avg = drawtime_avg * 0.95 + stats.drawtime * 0.05;
3974
3975                 u16 fps = 1.0 / stats.dtime_jitter.avg;
3976                 //s32 fps = driver->getFPS();
3977
3978                 std::ostringstream os(std::ios_base::binary);
3979                 os << std::fixed
3980                    << "Minetest " << minetest_version_hash
3981                    << " FPS = " << fps
3982                    << " (R: range_all=" << draw_control->range_all << ")"
3983                    << std::setprecision(0)
3984                    << " drawtime = " << drawtime_avg
3985                    << std::setprecision(1)
3986                    << ", dtime_jitter = "
3987                    << (stats.dtime_jitter.max_fraction * 100.0) << " %"
3988                    << std::setprecision(1)
3989                    << ", v_range = " << draw_control->wanted_range
3990                    << std::setprecision(3)
3991                    << ", RTT = " << client->getRTT();
3992                 guitext->setText(narrow_to_wide(os.str()).c_str());
3993                 guitext->setVisible(true);
3994         } else if (flags.show_hud || flags.show_chat) {
3995                 std::ostringstream os(std::ios_base::binary);
3996                 os << "Minetest " << minetest_version_hash;
3997                 guitext->setText(narrow_to_wide(os.str()).c_str());
3998                 guitext->setVisible(true);
3999         } else {
4000                 guitext->setVisible(false);
4001         }
4002
4003         if (guitext->isVisible()) {
4004                 core::rect<s32> rect(
4005                                 5,              5,
4006                                 screensize.X,   5 + g_fontengine->getTextHeight()
4007                 );
4008                 guitext->setRelativePosition(rect);
4009         }
4010
4011         if (flags.show_debug) {
4012                 std::ostringstream os(std::ios_base::binary);
4013                 os << std::setprecision(1) << std::fixed
4014                    << "(" << (player_position.X / BS)
4015                    << ", " << (player_position.Y / BS)
4016                    << ", " << (player_position.Z / BS)
4017                    << ") (yaw=" << (wrapDegrees_0_360(cam.camera_yaw))
4018                    << " " << yawToDirectionString(cam.camera_yaw)
4019                    << ") (seed = " << ((u64)client->getMapSeed())
4020                    << ")";
4021
4022                 if (runData.pointed_old.type == POINTEDTHING_NODE) {
4023                         ClientMap &map = client->getEnv().getClientMap();
4024                         const INodeDefManager *nodedef = client->getNodeDefManager();
4025                         MapNode n = map.getNodeNoEx(runData.pointed_old.node_undersurface);
4026                         if (n.getContent() != CONTENT_IGNORE && nodedef->get(n).name != "unknown") {
4027                                 const ContentFeatures &features = nodedef->get(n);
4028                                 os << " (pointing_at = " << nodedef->get(n).name
4029                                    << " - " << features.tiledef[0].name.c_str()
4030                                    << ")";
4031                         }
4032                 }
4033
4034                 guitext2->setText(narrow_to_wide(os.str()).c_str());
4035                 guitext2->setVisible(true);
4036
4037                 core::rect<s32> rect(
4038                                 5,             5 + g_fontengine->getTextHeight(),
4039                                 screensize.X,  5 + g_fontengine->getTextHeight() * 2
4040                 );
4041                 guitext2->setRelativePosition(rect);
4042         } else {
4043                 guitext2->setVisible(false);
4044         }
4045
4046         guitext_info->setText(infotext.c_str());
4047         guitext_info->setVisible(flags.show_hud && g_menumgr.menuCount() == 0);
4048
4049         float statustext_time_max = 1.5;
4050
4051         if (!statustext.empty()) {
4052                 *statustext_time += dtime;
4053
4054                 if (*statustext_time >= statustext_time_max) {
4055                         statustext = L"";
4056                         *statustext_time = 0;
4057                 }
4058         }
4059
4060         guitext_status->setText(statustext.c_str());
4061         guitext_status->setVisible(!statustext.empty());
4062
4063         if (!statustext.empty()) {
4064                 s32 status_width  = guitext_status->getTextWidth();
4065                 s32 status_height = guitext_status->getTextHeight();
4066                 s32 status_y = screensize.Y - 150;
4067                 s32 status_x = (screensize.X - status_width) / 2;
4068                 core::rect<s32> rect(
4069                                 status_x , status_y - status_height,
4070                                 status_x + status_width, status_y
4071                 );
4072                 guitext_status->setRelativePosition(rect);
4073
4074                 // Fade out
4075                 video::SColor initial_color(255, 0, 0, 0);
4076
4077                 if (guienv->getSkin())
4078                         initial_color = guienv->getSkin()->getColor(gui::EGDC_BUTTON_TEXT);
4079
4080                 video::SColor final_color = initial_color;
4081                 final_color.setAlpha(0);
4082                 video::SColor fade_color = initial_color.getInterpolated_quadratic(
4083                                 initial_color, final_color,
4084                                 pow(*statustext_time / statustext_time_max, 2.0f));
4085                 guitext_status->setOverrideColor(fade_color);
4086                 guitext_status->enableOverrideColor(true);
4087         }
4088 }
4089
4090
4091 /* Log times and stuff for visualization */
4092 inline void Game::updateProfilerGraphs(ProfilerGraph *graph)
4093 {
4094         Profiler::GraphValues values;
4095         g_profiler->graphGet(values);
4096         graph->put(values);
4097 }
4098
4099
4100
4101 /****************************************************************************
4102  Misc
4103  ****************************************************************************/
4104
4105 /* On some computers framerate doesn't seem to be automatically limited
4106  */
4107 inline void Game::limitFps(FpsControl *fps_timings, f32 *dtime)
4108 {
4109         // not using getRealTime is necessary for wine
4110         device->getTimer()->tick(); // Maker sure device time is up-to-date
4111         u32 time = device->getTimer()->getTime();
4112
4113         u32 last_time = fps_timings->last_time;
4114
4115         if (time > last_time)  // Make sure time hasn't overflowed
4116                 fps_timings->busy_time = time - last_time;
4117         else
4118                 fps_timings->busy_time = 0;
4119
4120         u32 frametime_min = 1000 / (g_menumgr.pausesGame()
4121                         ? g_settings->getFloat("pause_fps_max")
4122                         : g_settings->getFloat("fps_max"));
4123
4124         if (fps_timings->busy_time < frametime_min) {
4125                 fps_timings->sleep_time = frametime_min - fps_timings->busy_time;
4126                 device->sleep(fps_timings->sleep_time);
4127         } else {
4128                 fps_timings->sleep_time = 0;
4129         }
4130
4131         /* Get the new value of the device timer. Note that device->sleep() may
4132          * not sleep for the entire requested time as sleep may be interrupted and
4133          * therefore it is arguably more accurate to get the new time from the
4134          * device rather than calculating it by adding sleep_time to time.
4135          */
4136
4137         device->getTimer()->tick(); // Update device timer
4138         time = device->getTimer()->getTime();
4139
4140         if (time > last_time)  // Make sure last_time hasn't overflowed
4141                 *dtime = (time - last_time) / 1000.0;
4142         else
4143                 *dtime = 0;
4144
4145         fps_timings->last_time = time;
4146 }
4147
4148
4149 void Game::showOverlayMessage(const wchar_t *msg, float dtime,
4150                 int percent, bool draw_clouds)
4151 {
4152         draw_load_screen(msg, device, guienv, dtime, percent, draw_clouds);
4153         delete[] msg;
4154 }
4155
4156
4157 /****************************************************************************
4158  Shutdown / cleanup
4159  ****************************************************************************/
4160
4161 void Game::extendedResourceCleanup()
4162 {
4163         // Extended resource accounting
4164         infostream << "Irrlicht resources after cleanup:" << std::endl;
4165         infostream << "\tRemaining meshes   : "
4166                    << device->getSceneManager()->getMeshCache()->getMeshCount() << std::endl;
4167         infostream << "\tRemaining textures : "
4168                    << driver->getTextureCount() << std::endl;
4169
4170         for (unsigned int i = 0; i < driver->getTextureCount(); i++) {
4171                 irr::video::ITexture *texture = driver->getTextureByIndex(i);
4172                 infostream << "\t\t" << i << ":" << texture->getName().getPath().c_str()
4173                            << std::endl;
4174         }
4175
4176         clearTextureNameCache();
4177         infostream << "\tRemaining materials: "
4178                << driver-> getMaterialRendererCount()
4179                        << " (note: irrlicht doesn't support removing renderers)" << std::endl;
4180 }
4181
4182
4183
4184 /****************************************************************************
4185  extern function for launching the game
4186  ****************************************************************************/
4187
4188 void the_game(bool *kill,
4189                 bool random_input,
4190                 InputHandler *input,
4191                 IrrlichtDevice *device,
4192
4193                 const std::string &map_dir,
4194                 const std::string &playername,
4195                 const std::string &password,
4196                 const std::string &address,         // If empty local server is created
4197                 u16 port,
4198
4199                 std::wstring &error_message,
4200                 ChatBackend &chat_backend,
4201                 const SubgameSpec &gamespec,        // Used for local game
4202                 bool simple_singleplayer_mode)
4203 {
4204         Game game;
4205
4206         /* Make a copy of the server address because if a local singleplayer server
4207          * is created then this is updated and we don't want to change the value
4208          * passed to us by the calling function
4209          */
4210         std::string server_address = address;
4211
4212         try {
4213
4214                 if (game.startup(kill, random_input, input, device, map_dir,
4215                                         playername, password, &server_address, port,
4216                                         &error_message, &chat_backend, gamespec,
4217                                         simple_singleplayer_mode)) {
4218
4219                         game.run();
4220                         game.shutdown();
4221                 }
4222
4223         } catch (SerializationError &e) {
4224                 error_message = L"A serialization error occurred:\n"
4225                                 + narrow_to_wide(e.what()) + L"\n\nThe server is probably "
4226                                 L" running a different version of Minetest.";
4227                 errorstream << wide_to_narrow(error_message) << std::endl;
4228         } catch (ServerError &e) {
4229                 error_message = narrow_to_wide(e.what());
4230                 errorstream << "ServerError: " << e.what() << std::endl;
4231         } catch (ModError &e) {
4232                 errorstream << "ModError: " << e.what() << std::endl;
4233                 error_message = narrow_to_wide(e.what()) + wstrgettext("\nCheck debug.txt for details.");
4234         }
4235 }
4236