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 #ifdef __ANDROID__
  42 #include <GLES/gl.h>
  43 #endif
  44
  45 /*
  46         ItemDefinition
  47 */
  48 ItemDefinition::ItemDefinition()
  49 {
  50         resetInitial();
  51 }
  52
  53 ItemDefinition::ItemDefinition(const ItemDefinition &def)
  54 {
  55         resetInitial();
  56         *this = def;
  57 }
  58
  59 ItemDefinition& ItemDefinition::operator=(const ItemDefinition &def)
  60 {
  61         if(this == &def)
  62                 return *this;
  63
  64         reset();
  65
  66         type = def.type;
  67         name = def.name;
  68         description = def.description;
  69         inventory_image = def.inventory_image;
  70         wield_image = def.wield_image;
  71         wield_scale = def.wield_scale;
  72         stack_max = def.stack_max;
  73         usable = def.usable;
  74         liquids_pointable = def.liquids_pointable;
  75         if(def.tool_capabilities)
  76         {
  77                 tool_capabilities = new ToolCapabilities(
  78                                 *def.tool_capabilities);
  79         }
  80         groups = def.groups;
  81         node_placement_prediction = def.node_placement_prediction;
  82         sound_place = def.sound_place;
  83         range = def.range;
  84         return *this;
  85 }
  86
  87 ItemDefinition::~ItemDefinition()
  88 {
  89         reset();
  90 }
  91
  92 void ItemDefinition::resetInitial()
  93 {
  94         // Initialize pointers to NULL so reset() does not delete undefined pointers
  95         tool_capabilities = NULL;
  96         reset();
  97 }
  98
  99 void ItemDefinition::reset()
 100 {
 101         type = ITEM_NONE;
 102         name = "";
 103         description = "";
 104         inventory_image = "";
 105         wield_image = "";
 106         wield_scale = v3f(1.0, 1.0, 1.0);
 107         stack_max = 99;
 108         usable = false;
 109         liquids_pointable = false;
 110         if(tool_capabilities)
 111         {
 112                 delete tool_capabilities;
 113                 tool_capabilities = NULL;
 114         }
 115         groups.clear();
 116         sound_place = SimpleSoundSpec();
 117         range = -1;
 118
 119         node_placement_prediction = "";
 120 }
 121
 122 void ItemDefinition::serialize(std::ostream &os, u16 protocol_version) const
 123 {
 124         if(protocol_version <= 17)
 125                 writeU8(os, 1); // version
 126         else if(protocol_version <= 20)
 127                 writeU8(os, 2); // version
 128         else
 129                 writeU8(os, 3); // version
 130         writeU8(os, type);
 131         os<<serializeString(name);
 132         os<<serializeString(description);
 133         os<<serializeString(inventory_image);
 134         os<<serializeString(wield_image);
 135         writeV3F1000(os, wield_scale);
 136         writeS16(os, stack_max);
 137         writeU8(os, usable);
 138         writeU8(os, liquids_pointable);
 139         std::string tool_capabilities_s = "";
 140         if(tool_capabilities){
 141                 std::ostringstream tmp_os(std::ios::binary);
 142                 tool_capabilities->serialize(tmp_os, protocol_version);
 143                 tool_capabilities_s = tmp_os.str();
 144         }
 145         os<<serializeString(tool_capabilities_s);
 146         writeU16(os, groups.size());
 147         for(std::map<std::string, int>::const_iterator
 148                         i = groups.begin(); i != groups.end(); i++){
 149                 os<<serializeString(i->first);
 150                 writeS16(os, i->second);
 151         }
 152         os<<serializeString(node_placement_prediction);
 153         if(protocol_version > 17){
 154                 //serializeSimpleSoundSpec(sound_place, os);
 155                 os<<serializeString(sound_place.name);
 156                 writeF1000(os, sound_place.gain);
 157         }
 158         if(protocol_version > 20){
 159                 writeF1000(os, range);
 160         }
 161 }
 162
 163 void ItemDefinition::deSerialize(std::istream &is)
 164 {
 165         // Reset everything
 166         reset();
 167
 168         // Deserialize
 169         int version = readU8(is);
 170         if(version < 1 || version > 3)
 171                 throw SerializationError("unsupported ItemDefinition version");
 172         type = (enum ItemType)readU8(is);
 173         name = deSerializeString(is);
 174         description = deSerializeString(is);
 175         inventory_image = deSerializeString(is);
 176         wield_image = deSerializeString(is);
 177         wield_scale = readV3F1000(is);
 178         stack_max = readS16(is);
 179         usable = readU8(is);
 180         liquids_pointable = readU8(is);
 181         std::string tool_capabilities_s = deSerializeString(is);
 182         if(!tool_capabilities_s.empty())
 183         {
 184                 std::istringstream tmp_is(tool_capabilities_s, std::ios::binary);
 185                 tool_capabilities = new ToolCapabilities;
 186                 tool_capabilities->deSerialize(tmp_is);
 187         }
 188         groups.clear();
 189         u32 groups_size = readU16(is);
 190         for(u32 i=0; i<groups_size; i++){
 191                 std::string name = deSerializeString(is);
 192                 int value = readS16(is);
 193                 groups[name] = value;
 194         }
 195         if(version == 1){
 196                 // We cant be sure that node_placement_prediction is send in version 1
 197                 try{
 198                         node_placement_prediction = deSerializeString(is);
 199                 }catch(SerializationError &e) {};
 200                 // Set the old default sound
 201                 sound_place.name = "default_place_node";
 202                 sound_place.gain = 0.5;
 203         } else if(version >= 2) {
 204                 node_placement_prediction = deSerializeString(is);
 205                 //deserializeSimpleSoundSpec(sound_place, is);
 206                 sound_place.name = deSerializeString(is);
 207                 sound_place.gain = readF1000(is);
 208         }
 209         if(version == 3) {
 210                 range = readF1000(is);
 211         }
 212         // If you add anything here, insert it primarily inside the try-catch
 213         // block to not need to increase the version.
 214         try{
 215         }catch(SerializationError &e) {};
 216 }
 217
 218 /*
 219         CItemDefManager
 220 */
 221
 222 // SUGG: Support chains of aliases?
 223
 224 class CItemDefManager: public IWritableItemDefManager
 225 {
 226 #ifndef SERVER
 227         struct ClientCached
 228         {
 229                 video::ITexture *inventory_texture;
 230                 scene::IMesh *wield_mesh;
 231
 232                 ClientCached():
 233                         inventory_texture(NULL),
 234                         wield_mesh(NULL)
 235                 {}
 236         };
 237 #endif
 238
 239 public:
 240         CItemDefManager()
 241         {
 242
 243 #ifndef SERVER
 244                 m_main_thread = get_current_thread_id();
 245 #endif
 246                 clear();
 247         }
 248         virtual ~CItemDefManager()
 249         {
 250 #ifndef SERVER
 251                 const std::list<ClientCached*> &values = m_clientcached.getValues();
 252                 for(std::list<ClientCached*>::const_iterator
 253                                 i = values.begin(); i != values.end(); ++i)
 254                 {
 255                         ClientCached *cc = *i;
 256                         if (cc->wield_mesh)
 257                                 cc->wield_mesh->drop();
 258                         delete cc;
 259                 }
 260
 261 #endif
 262                 for (std::map<std::string, ItemDefinition*>::iterator iter =
 263                                 m_item_definitions.begin(); iter != m_item_definitions.end();
 264                                 iter ++) {
 265                         delete iter->second;
 266                 }
 267                 m_item_definitions.clear();
 268         }
 269         virtual const ItemDefinition& get(const std::string &name_) const
 270         {
 271                 // Convert name according to possible alias
 272                 std::string name = getAlias(name_);
 273                 // Get the definition
 274                 std::map<std::string, ItemDefinition*>::const_iterator i;
 275                 i = m_item_definitions.find(name);
 276                 if(i == m_item_definitions.end())
 277                         i = m_item_definitions.find("unknown");
 278                 assert(i != m_item_definitions.end());
 279                 return *(i->second);
 280         }
 281         virtual std::string getAlias(const std::string &name) const
 282         {
 283                 std::map<std::string, std::string>::const_iterator i;
 284                 i = m_aliases.find(name);
 285                 if(i != m_aliases.end())
 286                         return i->second;
 287                 return name;
 288         }
 289         virtual std::set<std::string> getAll() const
 290         {
 291                 std::set<std::string> result;
 292                 for(std::map<std::string, ItemDefinition*>::const_iterator
 293                                 i = m_item_definitions.begin();
 294                                 i != m_item_definitions.end(); i++)
 295                 {
 296                         result.insert(i->first);
 297                 }
 298                 for(std::map<std::string, std::string>::const_iterator
 299                                 i = m_aliases.begin();
 300                                 i != m_aliases.end(); i++)
 301                 {
 302                         result.insert(i->first);
 303                 }
 304                 return result;
 305         }
 306         virtual bool isKnown(const std::string &name_) const
 307         {
 308                 // Convert name according to possible alias
 309                 std::string name = getAlias(name_);
 310                 // Get the definition
 311                 std::map<std::string, ItemDefinition*>::const_iterator i;
 312                 return m_item_definitions.find(name) != m_item_definitions.end();
 313         }
 314 #ifndef SERVER
 315 public:
 316         ClientCached* createClientCachedDirect(const std::string &name,
 317                         IGameDef *gamedef) const
 318         {
 319                 infostream<<"Lazily creating item texture and mesh for \""
 320                                 <<name<<"\""<<std::endl;
 321
 322                 // This is not thread-safe
 323                 assert(get_current_thread_id() == m_main_thread);
 324
 325                 // Skip if already in cache
 326                 ClientCached *cc = NULL;
 327                 m_clientcached.get(name, &cc);
 328                 if(cc)
 329                         return cc;
 330
 331                 ITextureSource *tsrc = gamedef->getTextureSource();
 332                 INodeDefManager *nodedef = gamedef->getNodeDefManager();
 333                 IrrlichtDevice *device = tsrc->getDevice();
 334                 video::IVideoDriver *driver = device->getVideoDriver();
 335                 const ItemDefinition *def = &get(name);
 336
 337                 // Create new ClientCached
 338                 cc = new ClientCached();
 339
 340                 bool need_node_mesh = false;
 341
 342                 // Create an inventory texture
 343                 cc->inventory_texture = NULL;
 344                 if(def->inventory_image != "")
 345                 {
 346                         cc->inventory_texture = tsrc->getTexture(def->inventory_image);
 347                 }
 348                 else if(def->type == ITEM_NODE)
 349                 {
 350                         need_node_mesh = true;
 351                 }
 352
 353                 // Create a wield mesh
 354                 assert(cc->wield_mesh == NULL);
 355                 if(def->type == ITEM_NODE && def->wield_image == "")
 356                 {
 357                         need_node_mesh = true;
 358                 }
 359                 else if(def->wield_image != "" || def->inventory_image != "")
 360                 {
 361                         // Extrude the wield image into a mesh
 362
 363                         std::string imagename;
 364                         if(def->wield_image != "")
 365                                 imagename = def->wield_image;
 366                         else
 367                                 imagename = def->inventory_image;
 368
 369                         cc->wield_mesh = createExtrudedMesh(
 370                                         tsrc->getTexture(imagename),
 371                                         driver,
 372                                         def->wield_scale * v3f(40.0, 40.0, 4.0));
 373                         if(cc->wield_mesh == NULL)
 374                         {
 375                                 infostream<<"ItemDefManager: WARNING: "
 376                                         <<"updateTexturesAndMeshes(): "
 377                                         <<"Unable to create extruded mesh for item "
 378                                         <<def->name<<std::endl;
 379                         }
 380                 }
 381
 382                 if(need_node_mesh)
 383                 {
 384                         /*
 385                                 Get node properties
 386                         */
 387                         content_t id = nodedef->getId(def->name);
 388                         const ContentFeatures &f = nodedef->get(id);
 389
 390                         u8 param1 = 0;
 391                         if(f.param_type == CPT_LIGHT)
 392                                 param1 = 0xee;
 393
 394                         /*
 395                                 Make a mesh from the node
 396                         */
 397                         bool reenable_shaders = false;
 398                         if(g_settings->getBool("enable_shaders")){
 399                                 reenable_shaders = true;
 400                                 g_settings->setBool("enable_shaders",false);
 401                         }
 402                         MeshMakeData mesh_make_data(gamedef);
 403                         MapNode mesh_make_node(id, param1, 0);
 404                         mesh_make_data.fillSingleNode(&mesh_make_node);
 405                         MapBlockMesh mapblock_mesh(&mesh_make_data, v3s16(0, 0, 0));
 406                         scene::IMesh *node_mesh = mapblock_mesh.getMesh();
 407                         assert(node_mesh);
 408                         video::SColor c(255, 255, 255, 255);
 409                         setMeshColor(node_mesh, c);
 410
 411                         /*
 412                                 Scale and translate the mesh so it's a unit cube
 413                                 centered on the origin
 414                         */
 415                         scaleMesh(node_mesh, v3f(1.0/BS, 1.0/BS, 1.0/BS));
 416                         translateMesh(node_mesh, v3f(-1.0, -1.0, -1.0));
 417
 418                         /*
 419                                 Draw node mesh into a render target texture
 420                         */
 421                         if(cc->inventory_texture == NULL)
 422                         {
 423                                 TextureFromMeshParams params;
 424                                 params.mesh = node_mesh;
 425                                 params.dim.set(64, 64);
 426                                 params.rtt_texture_name = "INVENTORY_"
 427                                         + def->name + "_RTT";
 428                                 params.delete_texture_on_shutdown = true;
 429                                 params.camera_position.set(0, 1.0, -1.5);
 430                                 params.camera_position.rotateXZBy(45);
 431                                 params.camera_lookat.set(0, 0, 0);
 432                                 // Set orthogonal projection
 433                                 params.camera_projection_matrix.buildProjectionMatrixOrthoLH(
 434                                                 1.65, 1.65, 0, 100);
 435                                 params.ambient_light.set(1.0, 0.2, 0.2, 0.2);
 436                                 params.light_position.set(10, 100, -50);
 437                                 params.light_color.set(1.0, 0.5, 0.5, 0.5);
 438                                 params.light_radius = 1000;
 439
 440 #ifdef __ANDROID__
 441                                 params.camera_position.set(0, -1.0, -1.5);
 442                                 params.camera_position.rotateXZBy(45);
 443                                 params.light_position.set(10, -100, -50);
 444 #endif
 445                                 cc->inventory_texture =
 446                                         tsrc->generateTextureFromMesh(params);
 447
 448                                 // render-to-target didn't work
 449                                 if(cc->inventory_texture == NULL)
 450                                 {
 451                                         cc->inventory_texture =
 452                                                 tsrc->getTexture(f.tiledef[0].name);
 453                                 }
 454                         }
 455
 456                         /*
 457                                 Use the node mesh as the wield mesh
 458                         */
 459
 460                         // Scale to proper wield mesh proportions
 461                         scaleMesh(node_mesh, v3f(30.0, 30.0, 30.0)
 462                                         * def->wield_scale);
 463
 464                         cc->wield_mesh = node_mesh;
 465                         cc->wield_mesh->grab();
 466
 467                         //no way reference count can be smaller than 2 in this place!
 468                         assert(cc->wield_mesh->getReferenceCount() >= 2);
 469
 470                         if (reenable_shaders)
 471                                 g_settings->setBool("enable_shaders",true);
 472                 }
 473
 474                 // Put in cache
 475                 m_clientcached.set(name, cc);
 476
 477                 return cc;
 478         }
 479         ClientCached* getClientCached(const std::string &name,
 480                         IGameDef *gamedef) const
 481         {
 482                 ClientCached *cc = NULL;
 483                 m_clientcached.get(name, &cc);
 484                 if(cc)
 485                         return cc;
 486
 487                 if(get_current_thread_id() == m_main_thread)
 488                 {
 489                         return createClientCachedDirect(name, gamedef);
 490                 }
 491                 else
 492                 {
 493                         // We're gonna ask the result to be put into here
 494                         static ResultQueue<std::string, ClientCached*, u8, u8> result_queue;
 495
 496                         // Throw a request in
 497                         m_get_clientcached_queue.add(name, 0, 0, &result_queue);
 498                         try{
 499                                 while(true) {
 500                                         // Wait result for a second
 501                                         GetResult<std::string, ClientCached*, u8, u8>
 502                                                 result = result_queue.pop_front(1000);
 503
 504                                         if (result.key == name) {
 505                                                 return result.item;
 506                                         }
 507                                 }
 508                         }
 509                         catch(ItemNotFoundException &e)
 510                         {
 511                                 errorstream<<"Waiting for clientcached " << name << " timed out."<<std::endl;
 512                                 return &m_dummy_clientcached;
 513                         }
 514                 }
 515         }
 516         // Get item inventory texture
 517         virtual video::ITexture* getInventoryTexture(const std::string &name,
 518                         IGameDef *gamedef) const
 519         {
 520                 ClientCached *cc = getClientCached(name, gamedef);
 521                 if(!cc)
 522                         return NULL;
 523                 return cc->inventory_texture;
 524         }
 525         // Get item wield mesh
 526         virtual scene::IMesh* getWieldMesh(const std::string &name,
 527                         IGameDef *gamedef) const
 528         {
 529                 ClientCached *cc = getClientCached(name, gamedef);
 530                 if(!cc)
 531                         return NULL;
 532                 return cc->wield_mesh;
 533         }
 534 #endif
 535         void clear()
 536         {
 537                 for(std::map<std::string, ItemDefinition*>::const_iterator
 538                                 i = m_item_definitions.begin();
 539                                 i != m_item_definitions.end(); i++)
 540                 {
 541                         delete i->second;
 542                 }
 543                 m_item_definitions.clear();
 544                 m_aliases.clear();
 545
 546                 // Add the four builtin items:
 547                 //   "" is the hand
 548                 //   "unknown" is returned whenever an undefined item
 549                 //     is accessed (is also the unknown node)
 550                 //   "air" is the air node
 551                 //   "ignore" is the ignore node
 552
 553                 ItemDefinition* hand_def = new ItemDefinition;
 554                 hand_def->name = "";
 555                 hand_def->wield_image = "wieldhand.png";
 556                 hand_def->tool_capabilities = new ToolCapabilities;
 557                 m_item_definitions.insert(std::make_pair("", hand_def));
 558
 559                 ItemDefinition* unknown_def = new ItemDefinition;
 560                 unknown_def->type = ITEM_NODE;
 561                 unknown_def->name = "unknown";
 562                 m_item_definitions.insert(std::make_pair("unknown", unknown_def));
 563
 564                 ItemDefinition* air_def = new ItemDefinition;
 565                 air_def->type = ITEM_NODE;
 566                 air_def->name = "air";
 567                 m_item_definitions.insert(std::make_pair("air", air_def));
 568
 569                 ItemDefinition* ignore_def = new ItemDefinition;
 570                 ignore_def->type = ITEM_NODE;
 571                 ignore_def->name = "ignore";
 572                 m_item_definitions.insert(std::make_pair("ignore", ignore_def));
 573         }
 574         virtual void registerItem(const ItemDefinition &def)
 575         {
 576                 verbosestream<<"ItemDefManager: registering \""<<def.name<<"\""<<std::endl;
 577                 // Ensure that the "" item (the hand) always has ToolCapabilities
 578                 if(def.name == "")
 579                         assert(def.tool_capabilities != NULL);
 580
 581                 if(m_item_definitions.count(def.name) == 0)
 582                         m_item_definitions[def.name] = new ItemDefinition(def);
 583                 else
 584                         *(m_item_definitions[def.name]) = def;
 585
 586                 // Remove conflicting alias if it exists
 587                 bool alias_removed = (m_aliases.erase(def.name) != 0);
 588                 if(alias_removed)
 589                         infostream<<"ItemDefManager: erased alias "<<def.name
 590                                         <<" because item was defined"<<std::endl;
 591         }
 592         virtual void registerAlias(const std::string &name,
 593                         const std::string &convert_to)
 594         {
 595                 if(m_item_definitions.find(name) == m_item_definitions.end())
 596                 {
 597                         verbosestream<<"ItemDefManager: setting alias "<<name
 598                                 <<" -> "<<convert_to<<std::endl;
 599                         m_aliases[name] = convert_to;
 600                 }
 601         }
 602         void serialize(std::ostream &os, u16 protocol_version)
 603         {
 604                 writeU8(os, 0); // version
 605                 u16 count = m_item_definitions.size();
 606                 writeU16(os, count);
 607                 for(std::map<std::string, ItemDefinition*>::const_iterator
 608                                 i = m_item_definitions.begin();
 609                                 i != m_item_definitions.end(); i++)
 610                 {
 611                         ItemDefinition *def = i->second;
 612                         // Serialize ItemDefinition and write wrapped in a string
 613                         std::ostringstream tmp_os(std::ios::binary);
 614                         def->serialize(tmp_os, protocol_version);
 615                         os<<serializeString(tmp_os.str());
 616                 }
 617                 writeU16(os, m_aliases.size());
 618                 for(std::map<std::string, std::string>::const_iterator
 619                         i = m_aliases.begin(); i != m_aliases.end(); i++)
 620                 {
 621                         os<<serializeString(i->first);
 622                         os<<serializeString(i->second);
 623                 }
 624         }
 625         void deSerialize(std::istream &is)
 626         {
 627                 // Clear everything
 628                 clear();
 629                 // Deserialize
 630                 int version = readU8(is);
 631                 if(version != 0)
 632                         throw SerializationError("unsupported ItemDefManager version");
 633                 u16 count = readU16(is);
 634                 for(u16 i=0; i<count; i++)
 635                 {
 636                         // Deserialize a string and grab an ItemDefinition from it
 637                         std::istringstream tmp_is(deSerializeString(is), std::ios::binary);
 638                         ItemDefinition def;
 639                         def.deSerialize(tmp_is);
 640                         // Register
 641                         registerItem(def);
 642                 }
 643                 u16 num_aliases = readU16(is);
 644                 for(u16 i=0; i<num_aliases; i++)
 645                 {
 646                         std::string name = deSerializeString(is);
 647                         std::string convert_to = deSerializeString(is);
 648                         registerAlias(name, convert_to);
 649                 }
 650         }
 651         void processQueue(IGameDef *gamedef)
 652         {
 653 #ifndef SERVER
 654                 //NOTE this is only thread safe for ONE consumer thread!
 655                 while(!m_get_clientcached_queue.empty())
 656                 {
 657                         GetRequest<std::string, ClientCached*, u8, u8>
 658                                         request = m_get_clientcached_queue.pop();
 659
 660                         m_get_clientcached_queue.pushResult(request,
 661                                         createClientCachedDirect(request.key, gamedef));
 662                 }
 663 #endif
 664         }
 665 private:
 666         // Key is name
 667         std::map<std::string, ItemDefinition*> m_item_definitions;
 668         // Aliases
 669         std::map<std::string, std::string> m_aliases;
 670 #ifndef SERVER
 671         // The id of the thread that is allowed to use irrlicht directly
 672         threadid_t m_main_thread;
 673         // A reference to this can be returned when nothing is found, to avoid NULLs
 674         mutable ClientCached m_dummy_clientcached;
 675         // Cached textures and meshes
 676         mutable MutexedMap<std::string, ClientCached*> m_clientcached;
 677         // Queued clientcached fetches (to be processed by the main thread)
 678         mutable RequestQueue<std::string, ClientCached*, u8, u8> m_get_clientcached_queue;
 679 #endif
 680 };
 681
 682 IWritableItemDefManager* createItemDefManager()
 683 {
 684         return new CItemDefManager();
 685 }