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