src/itemdef.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4 Copyright (C) 2013 Kahrl <kahrl@gmx.net>
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU Lesser General Public License as published by
   8 the Free Software Foundation; either version 2.1 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public License along
  17 with this program; if not, write to the Free Software Foundation, Inc.,
  18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 */
  20
  21 #include "itemdef.h"
  22
  23 #include "gamedef.h"
  24 #include "nodedef.h"
  25 #include "tool.h"
  26 #include "inventory.h"
  27 #ifndef SERVER
  28 #include "mapblock_mesh.h"
  29 #include "mesh.h"
  30 #include "tile.h"
  31 #endif
  32 #include "log.h"
  33 #include "main.h" // g_settings
  34 #include "settings.h"
  35 #include "util/serialize.h"
  36 #include "util/container.h"
  37 #include "util/thread.h"
  38 #include <map>
  39 #include <set>
  40
  41 /*
  42         ItemDefinition
  43 */
  44 ItemDefinition::ItemDefinition()
  45 {
  46         resetInitial();
  47 }
  48
  49 ItemDefinition::ItemDefinition(const ItemDefinition &def)
  50 {
  51         resetInitial();
  52         *this = def;
  53 }
  54
  55 ItemDefinition& ItemDefinition::operator=(const ItemDefinition &def)
  56 {
  57         if(this == &def)
  58                 return *this;
  59
  60         reset();
  61
  62         type = def.type;
  63         name = def.name;
  64         description = def.description;
  65         inventory_image = def.inventory_image;
  66         wield_image = def.wield_image;
  67         wield_scale = def.wield_scale;
  68         stack_max = def.stack_max;
  69         usable = def.usable;
  70         liquids_pointable = def.liquids_pointable;
  71         if(def.tool_capabilities)
  72         {
  73                 tool_capabilities = new ToolCapabilities(
  74                                 *def.tool_capabilities);
  75         }
  76         groups = def.groups;
  77         node_placement_prediction = def.node_placement_prediction;
  78         sound_place = def.sound_place;
  79         return *this;
  80 }
  81
  82 ItemDefinition::~ItemDefinition()
  83 {
  84         reset();
  85 }
  86
  87 void ItemDefinition::resetInitial()
  88 {
  89         // Initialize pointers to NULL so reset() does not delete undefined pointers
  90         tool_capabilities = NULL;
  91         reset();
  92 }
  93
  94 void ItemDefinition::reset()
  95 {
  96         type = ITEM_NONE;
  97         name = "";
  98         description = "";
  99         inventory_image = "";
 100         wield_image = "";
 101         wield_scale = v3f(1.0, 1.0, 1.0);
 102         stack_max = 99;
 103         usable = false;
 104         liquids_pointable = false;
 105         if(tool_capabilities)
 106         {
 107                 delete tool_capabilities;
 108                 tool_capabilities = NULL;
 109         }
 110         groups.clear();
 111         sound_place = SimpleSoundSpec();
 112
 113         node_placement_prediction = "";
 114 }
 115
 116 void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 117 {
 118         if(protocol_version <= 17)
 119                 writeU8(os, 1); // version
 120         else
 121                 writeU8(os, 2); // version
 122         writeU8(os, type);
 123         os<<serializeString(name);
 124         os<<serializeString(description);
 125         os<<serializeString(inventory_image);
 126         os<<serializeString(wield_image);
 127         writeV3F1000(os, wield_scale);
 128         writeS16(os, stack_max);
 129         writeU8(os, usable);
 130         writeU8(os, liquids_pointable);
 131         std::string tool_capabilities_s = "";
 132         if(tool_capabilities){
 133                 std::ostringstream tmp_os(std::ios::binary);
 134                 tool_capabilities->serialize(tmp_os, protocol_version);
 135                 tool_capabilities_s = tmp_os.str();
 136         }
 137         os<<serializeString(tool_capabilities_s);
 138         writeU16(os, groups.size());
 139         for(std::map<std::string, int>::const_iterator
 140                         i = groups.begin(); i != groups.end(); i++){
 141                 os<<serializeString(i->first);
 142                 writeS16(os, i->second);
 143         }
 144         os<<serializeString(node_placement_prediction);
 145         if(protocol_version > 17){
 146                 //serializeSimpleSoundSpec(sound_place, os);
 147                 os<<serializeString(sound_place.name);
 148                 writeF1000(os, sound_place.gain);
 149         }
 150 }
 151
 152 void ItemDefinition::deSerialize(std::istream &is)
 153 {
 154         // Reset everything
 155         reset();
 156
 157         // Deserialize
 158         int version = readU8(is);
 159         if(version != 1 && version != 2)
 160                 throw SerializationError("unsupported ItemDefinition version");
 161         type = (enum ItemType)readU8(is);
 162         name = deSerializeString(is);
 163         description = deSerializeString(is);
 164         inventory_image = deSerializeString(is);
 165         wield_image = deSerializeString(is);
 166         wield_scale = readV3F1000(is);
 167         stack_max = readS16(is);
 168         usable = readU8(is);
 169         liquids_pointable = readU8(is);
 170         std::string tool_capabilities_s = deSerializeString(is);
 171         if(!tool_capabilities_s.empty())
 172         {
 173                 std::istringstream tmp_is(tool_capabilities_s, std::ios::binary);
 174                 tool_capabilities = new ToolCapabilities;
 175                 tool_capabilities->deSerialize(tmp_is);
 176         }
 177         groups.clear();
 178         u32 groups_size = readU16(is);
 179         for(u32 i=0; i<groups_size; i++){
 180                 std::string name = deSerializeString(is);
 181                 int value = readS16(is);
 182                 groups[name] = value;
 183         }
 184         if(version == 1){
 185                 // We cant be sure that node_placement_prediction is send in version 1
 186                 try{
 187                         node_placement_prediction = deSerializeString(is);
 188                 }catch(SerializationError &e) {};
 189                 // Set the old default sound
 190                 sound_place.name = "default_place_node";
 191                 sound_place.gain = 0.5;
 192         } else if(version == 2) {
 193                 node_placement_prediction = deSerializeString(is);
 194                 //deserializeSimpleSoundSpec(sound_place, is);
 195                 sound_place.name = deSerializeString(is);
 196                 sound_place.gain = readF1000(is);
 197         }
 198         // If you add anything here, insert it primarily inside the try-catch
 199         // block to not need to increase the version.
 200         try{
 201
 202         }catch(SerializationError &e) {};
 203 }
 204
 205 /*
 206         CItemDefManager
 207 */
 208
 209 // SUGG: Support chains of aliases?
 210
 211 class CItemDefManager: public IWritableItemDefManager
 212 {
 213 #ifndef SERVER
 214         struct ClientCached
 215         {
 216                 video::ITexture *inventory_texture;
 217                 scene::IMesh *wield_mesh;
 218
 219                 ClientCached():
 220                         inventory_texture(NULL),
 221                         wield_mesh(NULL)
 222                 {}
 223         };
 224 #endif
 225
 226 public:
 227         CItemDefManager()
 228         {
 229
 230 #ifndef SERVER
 231                 m_main_thread = get_current_thread_id();
 232                 m_driver = NULL;
 233 #endif
 234                 clear();
 235         }
 236         virtual ~CItemDefManager()
 237         {
 238 #ifndef SERVER
 239                 const std::list<ClientCached*> &values = m_clientcached.getValues();
 240                 for(std::list<ClientCached*>::const_iterator
 241                                 i = values.begin(); i != values.end(); ++i)
 242                 {
 243                         ClientCached *cc = *i;
 244                         if (cc->wield_mesh)
 245                                 cc->wield_mesh->drop();
 246                         delete cc;
 247                 }
 248
 249                 if (m_driver != NULL) {
 250                         for (unsigned int i = 0; i < m_extruded_textures.size(); i++) {
 251                                 m_driver->removeTexture(m_extruded_textures[i]);
 252                         }
 253                         m_extruded_textures.clear();
 254                 }
 255                 m_driver = NULL;
 256 #endif
 257                 for (std::map<std::string, ItemDefinition*>::iterator iter =
 258                                 m_item_definitions.begin(); iter != m_item_definitions.end();
 259                                 iter ++) {
 260                         delete iter->second;
 261                 }
 262                 m_item_definitions.clear();
 263         }
 264         virtual const ItemDefinition& get(const std::string &name_) const
 265         {
 266                 // Convert name according to possible alias
 267                 std::string name = getAlias(name_);
 268                 // Get the definition
 269                 std::map<std::string, ItemDefinition*>::const_iterator i;
 270                 i = m_item_definitions.find(name);
 271                 if(i == m_item_definitions.end())
 272                         i = m_item_definitions.find("unknown");
 273                 assert(i != m_item_definitions.end());
 274                 return *(i->second);
 275         }
 276         virtual std::string getAlias(const std::string &name) const
 277         {
 278                 std::map<std::string, std::string>::const_iterator i;
 279                 i = m_aliases.find(name);
 280                 if(i != m_aliases.end())
 281                         return i->second;
 282                 return name;
 283         }
 284         virtual std::set<std::string> getAll() const
 285         {
 286                 std::set<std::string> result;
 287                 for(std::map<std::string, ItemDefinition*>::const_iterator
 288                                 i = m_item_definitions.begin();
 289                                 i != m_item_definitions.end(); i++)
 290                 {
 291                         result.insert(i->first);
 292                 }
 293                 for(std::map<std::string, std::string>::const_iterator
 294                                 i = m_aliases.begin();
 295                                 i != m_aliases.end(); i++)
 296                 {
 297                         result.insert(i->first);
 298                 }
 299                 return result;
 300         }
 301         virtual bool isKnown(const std::string &name_) const
 302         {
 303                 // Convert name according to possible alias
 304                 std::string name = getAlias(name_);
 305                 // Get the definition
 306                 std::map<std::string, ItemDefinition*>::const_iterator i;
 307                 return m_item_definitions.find(name) != m_item_definitions.end();
 308         }
 309 #ifndef SERVER
 310 private:
 311         static video::IVideoDriver * m_driver;
 312         static std::vector<video::ITexture*> m_extruded_textures;
 313 public:
 314         ClientCached* createClientCachedDirect(const std::string &name,
 315                         IGameDef *gamedef) const
 316         {
 317                 infostream<<"Lazily creating item texture and mesh for \""
 318                                 <<name<<"\""<<std::endl;
 319
 320                 // This is not thread-safe
 321                 assert(get_current_thread_id() == m_main_thread);
 322
 323                 // Skip if already in cache
 324                 ClientCached *cc = NULL;
 325                 m_clientcached.get(name, &cc);
 326                 if(cc)
 327                         return cc;
 328
 329                 ITextureSource *tsrc = gamedef->getTextureSource();
 330                 INodeDefManager *nodedef = gamedef->getNodeDefManager();
 331                 IrrlichtDevice *device = tsrc->getDevice();
 332                 video::IVideoDriver *driver = device->getVideoDriver();
 333                 const ItemDefinition *def = &get(name);
 334
 335                 // Create new ClientCached
 336                 cc = new ClientCached();
 337
 338                 bool need_node_mesh = false;
 339
 340                 // Create an inventory texture
 341                 cc->inventory_texture = NULL;
 342                 if(def->inventory_image != "")
 343                 {
 344                         cc->inventory_texture = tsrc->getTexture(def->inventory_image);
 345                 }
 346                 else if(def->type == ITEM_NODE)
 347                 {
 348                         need_node_mesh = true;
 349                 }
 350
 351                 // Create a wield mesh
 352                 assert(cc->wield_mesh == NULL);
 353                 if(def->type == ITEM_NODE && def->wield_image == "")
 354                 {
 355                         need_node_mesh = true;
 356                 }
 357                 else if(def->wield_image != "" || def->inventory_image != "")
 358                 {
 359                         // Extrude the wield image into a mesh
 360
 361                         std::string imagename;
 362                         if(def->wield_image != "")
 363                                 imagename = def->wield_image;
 364                         else
 365                                 imagename = def->inventory_image;
 366
 367                         cc->wield_mesh = createExtrudedMesh(
 368                                         tsrc->getTexture(imagename),
 369                                         driver,
 370                                         def->wield_scale * v3f(40.0, 40.0, 4.0));
 371                         if(cc->wield_mesh == NULL)
 372                         {
 373                                 infostream<<"ItemDefManager: WARNING: "
 374                                         <<"updateTexturesAndMeshes(): "
 375                                         <<"Unable to create extruded mesh for item "
 376                                         <<def->name<<std::endl;
 377                         }
 378                 }
 379
 380                 if(need_node_mesh)
 381                 {
 382                         /*
 383                                 Get node properties
 384                         */
 385                         content_t id = nodedef->getId(def->name);
 386                         const ContentFeatures &f = nodedef->get(id);
 387
 388                         u8 param1 = 0;
 389                         if(f.param_type == CPT_LIGHT)
 390                                 param1 = 0xee;
 391
 392                         /*
 393                                 Make a mesh from the node
 394                         */
 395                         MeshMakeData mesh_make_data(gamedef);
 396                         MapNode mesh_make_node(id, param1, 0);
 397                         mesh_make_data.fillSingleNode(&mesh_make_node);
 398                         MapBlockMesh mapblock_mesh(&mesh_make_data);
 399
 400                         scene::IMesh *node_mesh = mapblock_mesh.getMesh();
 401                         assert(node_mesh);
 402                         video::SColor c(255, 255, 255, 255);
 403                         if(g_settings->getS32("enable_shaders") != 0)
 404                                 c = MapBlock_LightColor(255, 0xffff, decode_light(f.light_source));
 405                         setMeshColor(node_mesh, c);
 406
 407                         /*
 408                                 Scale and translate the mesh so it's a unit cube
 409                                 centered on the origin
 410                         */
 411                         scaleMesh(node_mesh, v3f(1.0/BS, 1.0/BS, 1.0/BS));
 412                         translateMesh(node_mesh, v3f(-1.0, -1.0, -1.0));
 413
 414                         /*
 415                                 Draw node mesh into a render target texture
 416                         */
 417                         if(cc->inventory_texture == NULL)
 418                         {
 419                                 core::dimension2d<u32> dim(64,64);
 420                                 std::string rtt_texture_name = "INVENTORY_"
 421                                         + def->name + "_RTT";
 422                                 v3f camera_position(0, 1.0, -1.5);
 423                                 camera_position.rotateXZBy(45);
 424                                 v3f camera_lookat(0, 0, 0);
 425                                 core::CMatrix4<f32> camera_projection_matrix;
 426                                 // Set orthogonal projection
 427                                 camera_projection_matrix.buildProjectionMatrixOrthoLH(
 428                                                 1.65, 1.65, 0, 100);
 429
 430                                 video::SColorf ambient_light(0.2,0.2,0.2);
 431                                 v3f light_position(10, 100, -50);
 432                                 video::SColorf light_color(0.5,0.5,0.5);
 433                                 f32 light_radius = 1000;
 434
 435                                 cc->inventory_texture = generateTextureFromMesh(
 436                                         node_mesh, device, dim, rtt_texture_name,
 437                                         camera_position,
 438                                         camera_lookat,
 439                                         camera_projection_matrix,
 440                                         ambient_light,
 441                                         light_position,
 442                                         light_color,
 443                                         light_radius);
 444
 445                                 // render-to-target didn't work
 446                                 if(cc->inventory_texture == NULL)
 447                                 {
 448                                         cc->inventory_texture =
 449                                                 tsrc->getTexture(f.tiledef[0].name);
 450                                 }
 451                         }
 452                         else
 453                         {
 454                                 if (m_driver == 0)
 455                                         m_driver = driver;
 456
 457                                 m_extruded_textures.push_back(cc->inventory_texture);
 458                         }
 459
 460                         /*
 461                                 Use the node mesh as the wield mesh
 462                         */
 463
 464                         // Scale to proper wield mesh proportions
 465                         scaleMesh(node_mesh, v3f(30.0, 30.0, 30.0)
 466                                         * def->wield_scale);
 467
 468                         cc->wield_mesh = node_mesh;
 469                         cc->wield_mesh->grab();
 470
 471                         //no way reference count can be smaller than 2 in this place!
 472                         assert(cc->wield_mesh->getReferenceCount() >= 2);
 473                 }
 474
 475                 // Put in cache
 476                 m_clientcached.set(name, cc);
 477
 478                 return cc;
 479         }
 480         ClientCached* getClientCached(const std::string &name,
 481                         IGameDef *gamedef) const
 482         {
 483                 ClientCached *cc = NULL;
 484                 m_clientcached.get(name, &cc);
 485                 if(cc)
 486                         return cc;
 487
 488                 if(get_current_thread_id() == m_main_thread)
 489                 {
 490                         return createClientCachedDirect(name, gamedef);
 491                 }
 492                 else
 493                 {
 494                         // We're gonna ask the result to be put into here
 495                         ResultQueue<std::string, ClientCached*, u8, u8> result_queue;
 496                         // Throw a request in
 497                         m_get_clientcached_queue.add(name, 0, 0, &result_queue);
 498                         try{
 499                                 // Wait result for a second
 500                                 GetResult<std::string, ClientCached*, u8, u8>
 501                                                 result = result_queue.pop_front(1000);
 502                                 // Check that at least something worked OK
 503                                 assert(result.key == name);
 504                                 // Return it
 505                                 return result.item;
 506                         }
 507                         catch(ItemNotFoundException &e)
 508                         {
 509                                 errorstream<<"Waiting for clientcached timed out."<<std::endl;
 510                                 return &m_dummy_clientcached;
 511                         }
 512                 }
 513         }
 514         // Get item inventory texture
 515         virtual video::ITexture* getInventoryTexture(const std::string &name,
 516                         IGameDef *gamedef) const
 517         {
 518                 ClientCached *cc = getClientCached(name, gamedef);
 519                 if(!cc)
 520                         return NULL;
 521                 return cc->inventory_texture;
 522         }
 523         // Get item wield mesh
 524         virtual scene::IMesh* getWieldMesh(const std::string &name,
 525                         IGameDef *gamedef) const
 526         {
 527                 ClientCached *cc = getClientCached(name, gamedef);
 528                 if(!cc)
 529                         return NULL;
 530                 return cc->wield_mesh;
 531         }
 532 #endif
 533         void clear()
 534         {
 535                 for(std::map<std::string, ItemDefinition*>::const_iterator
 536                                 i = m_item_definitions.begin();
 537                                 i != m_item_definitions.end(); i++)
 538                 {
 539                         delete i->second;
 540                 }
 541                 m_item_definitions.clear();
 542                 m_aliases.clear();
 543
 544                 // Add the four builtin items:
 545                 //   "" is the hand
 546                 //   "unknown" is returned whenever an undefined item is accessed
 547                 //   "air" is the air node
 548                 //   "ignore" is the ignore node
 549
 550                 ItemDefinition* hand_def = new ItemDefinition;
 551                 hand_def->name = "";
 552                 hand_def->wield_image = "wieldhand.png";
 553                 hand_def->tool_capabilities = new ToolCapabilities;
 554                 m_item_definitions.insert(std::make_pair("", hand_def));
 555
 556                 ItemDefinition* unknown_def = new ItemDefinition;
 557                 unknown_def->name = "unknown";
 558                 m_item_definitions.insert(std::make_pair("unknown", unknown_def));
 559
 560                 ItemDefinition* air_def = new ItemDefinition;
 561                 air_def->type = ITEM_NODE;
 562                 air_def->name = "air";
 563                 m_item_definitions.insert(std::make_pair("air", air_def));
 564
 565                 ItemDefinition* ignore_def = new ItemDefinition;
 566                 ignore_def->type = ITEM_NODE;
 567                 ignore_def->name = "ignore";
 568                 m_item_definitions.insert(std::make_pair("ignore", ignore_def));
 569         }
 570         virtual void registerItem(const ItemDefinition &def)
 571         {
 572                 verbosestream<<"ItemDefManager: registering \""<<def.name<<"\""<<std::endl;
 573                 // Ensure that the "" item (the hand) always has ToolCapabilities
 574                 if(def.name == "")
 575                         assert(def.tool_capabilities != NULL);
 576
 577                 if(m_item_definitions.count(def.name) == 0)
 578                         m_item_definitions[def.name] = new ItemDefinition(def);
 579                 else
 580                         *(m_item_definitions[def.name]) = def;
 581
 582                 // Remove conflicting alias if it exists
 583                 bool alias_removed = (m_aliases.erase(def.name) != 0);
 584                 if(alias_removed)
 585                         infostream<<"ItemDefManager: erased alias "<<def.name
 586                                         <<" because item was defined"<<std::endl;
 587         }
 588         virtual void registerAlias(const std::string &name,
 589                         const std::string &convert_to)
 590         {
 591                 if(m_item_definitions.find(name) == m_item_definitions.end())
 592                 {
 593                         verbosestream<<"ItemDefManager: setting alias "<<name
 594                                 <<" -> "<<convert_to<<std::endl;
 595                         m_aliases[name] = convert_to;
 596                 }
 597         }
 598         void serialize(std::ostream &os, u16 protocol_version)
 599         {
 600                 writeU8(os, 0); // version
 601                 u16 count = m_item_definitions.size();
 602                 writeU16(os, count);
 603                 for(std::map<std::string, ItemDefinition*>::const_iterator
 604                                 i = m_item_definitions.begin();
 605                                 i != m_item_definitions.end(); i++)
 606                 {
 607                         ItemDefinition *def = i->second;
 608                         // Serialize ItemDefinition and write wrapped in a string
 609                         std::ostringstream tmp_os(std::ios::binary);
 610                         def->serialize(tmp_os, protocol_version);
 611                         os<<serializeString(tmp_os.str());
 612                 }
 613                 writeU16(os, m_aliases.size());
 614                 for(std::map<std::string, std::string>::const_iterator
 615                         i = m_aliases.begin(); i != m_aliases.end(); i++)
 616                 {
 617                         os<<serializeString(i->first);
 618                         os<<serializeString(i->second);
 619                 }
 620         }
 621         void deSerialize(std::istream &is)
 622         {
 623                 // Clear everything
 624                 clear();
 625                 // Deserialize
 626                 int version = readU8(is);
 627                 if(version != 0)
 628                         throw SerializationError("unsupported ItemDefManager version");
 629                 u16 count = readU16(is);
 630                 for(u16 i=0; i<count; i++)
 631                 {
 632                         // Deserialize a string and grab an ItemDefinition from it
 633                         std::istringstream tmp_is(deSerializeString(is), std::ios::binary);
 634                         ItemDefinition def;
 635                         def.deSerialize(tmp_is);
 636                         // Register
 637                         registerItem(def);
 638                 }
 639                 u16 num_aliases = readU16(is);
 640                 for(u16 i=0; i<num_aliases; i++)
 641                 {
 642                         std::string name = deSerializeString(is);
 643                         std::string convert_to = deSerializeString(is);
 644                         registerAlias(name, convert_to);
 645                 }
 646         }
 647         void processQueue(IGameDef *gamedef)
 648         {
 649 #ifndef SERVER
 650                 while(!m_get_clientcached_queue.empty())
 651                 {
 652                         GetRequest<std::string, ClientCached*, u8, u8>
 653                                         request = m_get_clientcached_queue.pop();
 654                         GetResult<std::string, ClientCached*, u8, u8>
 655                                         result;
 656                         result.key = request.key;
 657                         result.callers = request.callers;
 658                         result.item = createClientCachedDirect(request.key, gamedef);
 659                         request.dest->push_back(result);
 660                 }
 661 #endif
 662         }
 663 private:
 664         // Key is name
 665         std::map<std::string, ItemDefinition*> m_item_definitions;
 666         // Aliases
 667         std::map<std::string, std::string> m_aliases;
 668 #ifndef SERVER
 669         // The id of the thread that is allowed to use irrlicht directly
 670         threadid_t m_main_thread;
 671         // A reference to this can be returned when nothing is found, to avoid NULLs
 672         mutable ClientCached m_dummy_clientcached;
 673         // Cached textures and meshes
 674         mutable MutexedMap<std::string, ClientCached*> m_clientcached;
 675         // Queued clientcached fetches (to be processed by the main thread)
 676         mutable RequestQueue<std::string, ClientCached*, u8, u8> m_get_clientcached_queue;
 677 #endif
 678 };
 679
 680 IWritableItemDefManager* createItemDefManager()
 681 {
 682         return new CItemDefManager();
 683 }
 684
 685 #ifndef SERVER
 686 //TODO very very very dirty hack!
 687 video::IVideoDriver * CItemDefManager::m_driver = 0;
 688 std::vector<video::ITexture*> CItemDefManager::m_extruded_textures;
 689 #endif