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                 for (std::map<std::string, ItemDefinition*>::iterator iter =
 230                                 m_item_definitions.begin(); iter != m_item_definitions.end();
 231                                 iter ++) {
 232                         delete iter->second;
 233                 }
 234                 m_item_definitions.clear();
 235 #ifndef SERVER
 236                 m_main_thread = get_current_thread_id();
 237                 m_driver = NULL;
 238 #endif
 239
 240                 clear();
 241         }
 242         virtual ~CItemDefManager()
 243         {
 244 #ifndef SERVER
 245                 const std::list<ClientCached*> &values = m_clientcached.getValues();
 246                 for(std::list<ClientCached*>::const_iterator
 247                                 i = values.begin(); i != values.end(); ++i)
 248                 {
 249                         ClientCached *cc = *i;
 250                         cc->wield_mesh->drop();
 251                         delete cc;
 252                 }
 253
 254                 if (m_driver != NULL) {
 255                         for (unsigned int i = 0; i < m_extruded_textures.size(); i++) {
 256                                 m_driver->removeTexture(m_extruded_textures[i]);
 257                         }
 258                         m_extruded_textures.clear();
 259                 }
 260                 m_driver = NULL;
 261 #endif
 262         }
 263         virtual const ItemDefinition& get(const std::string &name_) const
 264         {
 265                 // Convert name according to possible alias
 266                 std::string name = getAlias(name_);
 267                 // Get the definition
 268                 std::map<std::string, ItemDefinition*>::const_iterator i;
 269                 i = m_item_definitions.find(name);
 270                 if(i == m_item_definitions.end())
 271                         i = m_item_definitions.find("unknown");
 272                 assert(i != m_item_definitions.end());
 273                 return *(i->second);
 274         }
 275         virtual std::string getAlias(const std::string &name) const
 276         {
 277                 std::map<std::string, std::string>::const_iterator i;
 278                 i = m_aliases.find(name);
 279                 if(i != m_aliases.end())
 280                         return i->second;
 281                 return name;
 282         }
 283         virtual std::set<std::string> getAll() const
 284         {
 285                 std::set<std::string> result;
 286                 for(std::map<std::string, ItemDefinition*>::const_iterator
 287                                 i = m_item_definitions.begin();
 288                                 i != m_item_definitions.end(); i++)
 289                 {
 290                         result.insert(i->first);
 291                 }
 292                 for(std::map<std::string, std::string>::const_iterator
 293                                 i = m_aliases.begin();
 294                                 i != m_aliases.end(); i++)
 295                 {
 296                         result.insert(i->first);
 297                 }
 298                 return result;
 299         }
 300         virtual bool isKnown(const std::string &name_) const
 301         {
 302                 // Convert name according to possible alias
 303                 std::string name = getAlias(name_);
 304                 // Get the definition
 305                 std::map<std::string, ItemDefinition*>::const_iterator i;
 306                 return m_item_definitions.find(name) != m_item_definitions.end();
 307         }
 308 #ifndef SERVER
 309 private:
 310         static video::IVideoDriver * m_driver;
 311         static std::vector<video::ITexture*> m_extruded_textures;
 312 public:
 313         ClientCached* createClientCachedDirect(const std::string &name,
 314                         IGameDef *gamedef) const
 315         {
 316                 infostream<<"Lazily creating item texture and mesh for \""
 317                                 <<name<<"\""<<std::endl;
 318
 319                 // This is not thread-safe
 320                 assert(get_current_thread_id() == m_main_thread);
 321
 322                 // Skip if already in cache
 323                 ClientCached *cc = NULL;
 324                 m_clientcached.get(name, &cc);
 325                 if(cc)
 326                         return cc;
 327
 328                 ITextureSource *tsrc = gamedef->getTextureSource();
 329                 INodeDefManager *nodedef = gamedef->getNodeDefManager();
 330                 IrrlichtDevice *device = tsrc->getDevice();
 331                 video::IVideoDriver *driver = device->getVideoDriver();
 332                 const ItemDefinition *def = &get(name);
 333
 334                 // Create new ClientCached
 335                 cc = new ClientCached();
 336
 337                 bool need_node_mesh = false;
 338
 339                 // Create an inventory texture
 340                 cc->inventory_texture = NULL;
 341                 if(def->inventory_image != "")
 342                 {
 343                         cc->inventory_texture = tsrc->getTextureRaw(def->inventory_image);
 344                 }
 345                 else if(def->type == ITEM_NODE)
 346                 {
 347                         need_node_mesh = true;
 348                 }
 349
 350                 // Create a wield mesh
 351                 assert(cc->wield_mesh == NULL);
 352                 if(def->type == ITEM_NODE && def->wield_image == "")
 353                 {
 354                         need_node_mesh = true;
 355                 }
 356                 else if(def->wield_image != "" || def->inventory_image != "")
 357                 {
 358                         // Extrude the wield image into a mesh
 359
 360                         std::string imagename;
 361                         if(def->wield_image != "")
 362                                 imagename = def->wield_image;
 363                         else
 364                                 imagename = def->inventory_image;
 365
 366                         cc->wield_mesh = createExtrudedMesh(
 367                                         tsrc->getTextureRaw(imagename),
 368                                         driver,
 369                                         def->wield_scale * v3f(40.0, 40.0, 4.0));
 370                         if(cc->wield_mesh == NULL)
 371                         {
 372                                 infostream<<"ItemDefManager: WARNING: "
 373                                         <<"updateTexturesAndMeshes(): "
 374                                         <<"Unable to create extruded mesh for item "
 375                                         <<def->name<<std::endl;
 376                         }
 377                 }
 378
 379                 if(need_node_mesh)
 380                 {
 381                         /*
 382                                 Get node properties
 383                         */
 384                         content_t id = nodedef->getId(def->name);
 385                         const ContentFeatures &f = nodedef->get(id);
 386
 387                         u8 param1 = 0;
 388                         if(f.param_type == CPT_LIGHT)
 389                                 param1 = 0xee;
 390
 391                         /*
 392                                 Make a mesh from the node
 393                         */
 394                         MeshMakeData mesh_make_data(gamedef);
 395                         MapNode mesh_make_node(id, param1, 0);
 396                         mesh_make_data.fillSingleNode(&mesh_make_node);
 397                         MapBlockMesh mapblock_mesh(&mesh_make_data);
 398
 399                         scene::IMesh *node_mesh = mapblock_mesh.getMesh();
 400                         assert(node_mesh);
 401                         video::SColor c(255, 255, 255, 255);
 402                         if(g_settings->getS32("enable_shaders") != 0)
 403                                 c = MapBlock_LightColor(255, 0xffff, decode_light(f.light_source));
 404                         setMeshColor(node_mesh, c);
 405
 406                         /*
 407                                 Scale and translate the mesh so it's a unit cube
 408                                 centered on the origin
 409                         */
 410                         scaleMesh(node_mesh, v3f(1.0/BS, 1.0/BS, 1.0/BS));
 411                         translateMesh(node_mesh, v3f(-1.0, -1.0, -1.0));
 412
 413                         /*
 414                                 Draw node mesh into a render target texture
 415                         */
 416                         if(cc->inventory_texture == NULL)
 417                         {
 418                                 core::dimension2d<u32> dim(64,64);
 419                                 std::string rtt_texture_name = "INVENTORY_"
 420                                         + def->name + "_RTT";
 421                                 v3f camera_position(0, 1.0, -1.5);
 422                                 camera_position.rotateXZBy(45);
 423                                 v3f camera_lookat(0, 0, 0);
 424                                 core::CMatrix4<f32> camera_projection_matrix;
 425                                 // Set orthogonal projection
 426                                 camera_projection_matrix.buildProjectionMatrixOrthoLH(
 427                                                 1.65, 1.65, 0, 100);
 428
 429                                 video::SColorf ambient_light(0.2,0.2,0.2);
 430                                 v3f light_position(10, 100, -50);
 431                                 video::SColorf light_color(0.5,0.5,0.5);
 432                                 f32 light_radius = 1000;
 433
 434                                 cc->inventory_texture = generateTextureFromMesh(
 435                                         node_mesh, device, dim, rtt_texture_name,
 436                                         camera_position,
 437                                         camera_lookat,
 438                                         camera_projection_matrix,
 439                                         ambient_light,
 440                                         light_position,
 441                                         light_color,
 442                                         light_radius);
 443
 444                                 // render-to-target didn't work
 445                                 if(cc->inventory_texture == NULL)
 446                                 {
 447                                         cc->inventory_texture =
 448                                                 tsrc->getTextureRaw(f.tiledef[0].name);
 449                                 }
 450                         }
 451                         else
 452                         {
 453                                 if (m_driver == 0)
 454                                         m_driver = driver;
 455
 456                                 m_extruded_textures.push_back(cc->inventory_texture);
 457                         }
 458
 459                         /*
 460                                 Use the node mesh as the wield mesh
 461                         */
 462
 463                         // Scale to proper wield mesh proportions
 464                         scaleMesh(node_mesh, v3f(30.0, 30.0, 30.0)
 465                                         * def->wield_scale);
 466
 467                         cc->wield_mesh = node_mesh;
 468                         cc->wield_mesh->grab();
 469
 470                         //no way reference count can be smaller than 2 in this place!
 471                         assert(cc->wield_mesh->getReferenceCount() >= 2);
 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                         ResultQueue<std::string, ClientCached*, u8, u8> result_queue;
 495                         // Throw a request in
 496                         m_get_clientcached_queue.add(name, 0, 0, &result_queue);
 497                         try{
 498                                 // Wait result for a second
 499                                 GetResult<std::string, ClientCached*, u8, u8>
 500                                                 result = result_queue.pop_front(1000);
 501                                 // Check that at least something worked OK
 502                                 assert(result.key == name);
 503                                 // Return it
 504                                 return result.item;
 505                         }
 506                         catch(ItemNotFoundException &e)
 507                         {
 508                                 errorstream<<"Waiting for clientcached timed out."<<std::endl;
 509                                 return &m_dummy_clientcached;
 510                         }
 511                 }
 512         }
 513         // Get item inventory texture
 514         virtual video::ITexture* getInventoryTexture(const std::string &name,
 515                         IGameDef *gamedef) const
 516         {
 517                 ClientCached *cc = getClientCached(name, gamedef);
 518                 if(!cc)
 519                         return NULL;
 520                 return cc->inventory_texture;
 521         }
 522         // Get item wield mesh
 523         virtual scene::IMesh* getWieldMesh(const std::string &name,
 524                         IGameDef *gamedef) const
 525         {
 526                 ClientCached *cc = getClientCached(name, gamedef);
 527                 if(!cc)
 528                         return NULL;
 529                 return cc->wield_mesh;
 530         }
 531 #endif
 532         void clear()
 533         {
 534                 for(std::map<std::string, ItemDefinition*>::const_iterator
 535                                 i = m_item_definitions.begin();
 536                                 i != m_item_definitions.end(); i++)
 537                 {
 538                         delete i->second;
 539                 }
 540                 m_item_definitions.clear();
 541                 m_aliases.clear();
 542
 543                 // Add the four builtin items:
 544                 //   "" is the hand
 545                 //   "unknown" is returned whenever an undefined item is accessed
 546                 //   "air" is the air node
 547                 //   "ignore" is the ignore node
 548
 549                 ItemDefinition* hand_def = new ItemDefinition;
 550                 hand_def->name = "";
 551                 hand_def->wield_image = "wieldhand.png";
 552                 hand_def->tool_capabilities = new ToolCapabilities;
 553                 m_item_definitions.insert(std::make_pair("", hand_def));
 554
 555                 ItemDefinition* unknown_def = new ItemDefinition;
 556                 unknown_def->name = "unknown";
 557                 m_item_definitions.insert(std::make_pair("unknown", unknown_def));
 558
 559                 ItemDefinition* air_def = new ItemDefinition;
 560                 air_def->type = ITEM_NODE;
 561                 air_def->name = "air";
 562                 m_item_definitions.insert(std::make_pair("air", air_def));
 563
 564                 ItemDefinition* ignore_def = new ItemDefinition;
 565                 ignore_def->type = ITEM_NODE;
 566                 ignore_def->name = "ignore";
 567                 m_item_definitions.insert(std::make_pair("ignore", ignore_def));
 568         }
 569         virtual void registerItem(const ItemDefinition &def)
 570         {
 571                 verbosestream<<"ItemDefManager: registering \""<<def.name<<"\""<<std::endl;
 572                 // Ensure that the "" item (the hand) always has ToolCapabilities
 573                 if(def.name == "")
 574                         assert(def.tool_capabilities != NULL);
 575
 576                 if(m_item_definitions.count(def.name) == 0)
 577                         m_item_definitions[def.name] = new ItemDefinition(def);
 578                 else
 579                         *(m_item_definitions[def.name]) = def;
 580
 581                 // Remove conflicting alias if it exists
 582                 bool alias_removed = (m_aliases.erase(def.name) != 0);
 583                 if(alias_removed)
 584                         infostream<<"ItemDefManager: erased alias "<<def.name
 585                                         <<" because item was defined"<<std::endl;
 586         }
 587         virtual void registerAlias(const std::string &name,
 588                         const std::string &convert_to)
 589         {
 590                 if(m_item_definitions.find(name) == m_item_definitions.end())
 591                 {
 592                         verbosestream<<"ItemDefManager: setting alias "<<name
 593                                 <<" -> "<<convert_to<<std::endl;
 594                         m_aliases[name] = convert_to;
 595                 }
 596         }
 597         void serialize(std::ostream &os, u16 protocol_version)
 598         {
 599                 writeU8(os, 0); // version
 600                 u16 count = m_item_definitions.size();
 601                 writeU16(os, count);
 602                 for(std::map<std::string, ItemDefinition*>::const_iterator
 603                                 i = m_item_definitions.begin();
 604                                 i != m_item_definitions.end(); i++)
 605                 {
 606                         ItemDefinition *def = i->second;
 607                         // Serialize ItemDefinition and write wrapped in a string
 608                         std::ostringstream tmp_os(std::ios::binary);
 609                         def->serialize(tmp_os, protocol_version);
 610                         os<<serializeString(tmp_os.str());
 611                 }
 612                 writeU16(os, m_aliases.size());
 613                 for(std::map<std::string, std::string>::const_iterator
 614                         i = m_aliases.begin(); i != m_aliases.end(); i++)
 615                 {
 616                         os<<serializeString(i->first);
 617                         os<<serializeString(i->second);
 618                 }
 619         }
 620         void deSerialize(std::istream &is)
 621         {
 622                 // Clear everything
 623                 clear();
 624                 // Deserialize
 625                 int version = readU8(is);
 626                 if(version != 0)
 627                         throw SerializationError("unsupported ItemDefManager version");
 628                 u16 count = readU16(is);
 629                 for(u16 i=0; i<count; i++)
 630                 {
 631                         // Deserialize a string and grab an ItemDefinition from it
 632                         std::istringstream tmp_is(deSerializeString(is), std::ios::binary);
 633                         ItemDefinition def;
 634                         def.deSerialize(tmp_is);
 635                         // Register
 636                         registerItem(def);
 637                 }
 638                 u16 num_aliases = readU16(is);
 639                 for(u16 i=0; i<num_aliases; i++)
 640                 {
 641                         std::string name = deSerializeString(is);
 642                         std::string convert_to = deSerializeString(is);
 643                         registerAlias(name, convert_to);
 644                 }
 645         }
 646         void processQueue(IGameDef *gamedef)
 647         {
 648 #ifndef SERVER
 649                 while(!m_get_clientcached_queue.empty())
 650                 {
 651                         GetRequest<std::string, ClientCached*, u8, u8>
 652                                         request = m_get_clientcached_queue.pop();
 653                         GetResult<std::string, ClientCached*, u8, u8>
 654                                         result;
 655                         result.key = request.key;
 656                         result.callers = request.callers;
 657                         result.item = createClientCachedDirect(request.key, gamedef);
 658                         request.dest->push_back(result);
 659                 }
 660 #endif
 661         }
 662 private:
 663         // Key is name
 664         std::map<std::string, ItemDefinition*> m_item_definitions;
 665         // Aliases
 666         std::map<std::string, std::string> m_aliases;
 667 #ifndef SERVER
 668         // The id of the thread that is allowed to use irrlicht directly
 669         threadid_t m_main_thread;
 670         // A reference to this can be returned when nothing is found, to avoid NULLs
 671         mutable ClientCached m_dummy_clientcached;
 672         // Cached textures and meshes
 673         mutable MutexedMap<std::string, ClientCached*> m_clientcached;
 674         // Queued clientcached fetches (to be processed by the main thread)
 675         mutable RequestQueue<std::string, ClientCached*, u8, u8> m_get_clientcached_queue;
 676 #endif
 677 };
 678
 679 IWritableItemDefManager* createItemDefManager()
 680 {
 681         return new CItemDefManager();
 682 }
 683
 684 #ifndef SERVER
 685 //TODO very very very dirty hack!
 686 video::IVideoDriver * CItemDefManager::m_driver = 0;
 687 std::vector<video::ITexture*> CItemDefManager::m_extruded_textures;
 688 #endif