src/nodedef.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 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 "nodedef.h"
  21
  22 #include "main.h" // For g_settings
  23 #include "itemdef.h"
  24 #ifndef SERVER
  25 #include "client/tile.h"
  26 #include "mesh.h"
  27 #include <IMeshManipulator.h>
  28 #endif
  29 #include "log.h"
  30 #include "settings.h"
  31 #include "nameidmapping.h"
  32 #include "util/numeric.h"
  33 #include "util/serialize.h"
  34 #include "exceptions.h"
  35 #include "debug.h"
  36 #include "gamedef.h"
  37
  38 /*
  39         NodeBox
  40 */
  41
  42 void NodeBox::reset()
  43 {
  44         type = NODEBOX_REGULAR;
  45         // default is empty
  46         fixed.clear();
  47         // default is sign/ladder-like
  48         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  49         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  50         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  51 }
  52
  53 void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
  54 {
  55         int version = protocol_version >= 21 ? 2 : 1;
  56         writeU8(os, version);
  57
  58         if (version == 1 && type == NODEBOX_LEVELED)
  59                 writeU8(os, NODEBOX_FIXED);
  60         else
  61                 writeU8(os, type);
  62
  63         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  64         {
  65                 writeU16(os, fixed.size());
  66                 for(std::vector<aabb3f>::const_iterator
  67                                 i = fixed.begin();
  68                                 i != fixed.end(); i++)
  69                 {
  70                         writeV3F1000(os, i->MinEdge);
  71                         writeV3F1000(os, i->MaxEdge);
  72                 }
  73         }
  74         else if(type == NODEBOX_WALLMOUNTED)
  75         {
  76                 writeV3F1000(os, wall_top.MinEdge);
  77                 writeV3F1000(os, wall_top.MaxEdge);
  78                 writeV3F1000(os, wall_bottom.MinEdge);
  79                 writeV3F1000(os, wall_bottom.MaxEdge);
  80                 writeV3F1000(os, wall_side.MinEdge);
  81                 writeV3F1000(os, wall_side.MaxEdge);
  82         }
  83 }
  84
  85 void NodeBox::deSerialize(std::istream &is)
  86 {
  87         int version = readU8(is);
  88         if(version < 1 || version > 2)
  89                 throw SerializationError("unsupported NodeBox version");
  90
  91         reset();
  92
  93         type = (enum NodeBoxType)readU8(is);
  94
  95         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  96         {
  97                 u16 fixed_count = readU16(is);
  98                 while(fixed_count--)
  99                 {
 100                         aabb3f box;
 101                         box.MinEdge = readV3F1000(is);
 102                         box.MaxEdge = readV3F1000(is);
 103                         fixed.push_back(box);
 104                 }
 105         }
 106         else if(type == NODEBOX_WALLMOUNTED)
 107         {
 108                 wall_top.MinEdge = readV3F1000(is);
 109                 wall_top.MaxEdge = readV3F1000(is);
 110                 wall_bottom.MinEdge = readV3F1000(is);
 111                 wall_bottom.MaxEdge = readV3F1000(is);
 112                 wall_side.MinEdge = readV3F1000(is);
 113                 wall_side.MaxEdge = readV3F1000(is);
 114         }
 115 }
 116
 117 /*
 118         TileDef
 119 */
 120
 121 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 122 {
 123         if(protocol_version >= 17)
 124                 writeU8(os, 1);
 125         else
 126                 writeU8(os, 0);
 127         os<<serializeString(name);
 128         writeU8(os, animation.type);
 129         writeU16(os, animation.aspect_w);
 130         writeU16(os, animation.aspect_h);
 131         writeF1000(os, animation.length);
 132         if(protocol_version >= 17)
 133                 writeU8(os, backface_culling);
 134 }
 135
 136 void TileDef::deSerialize(std::istream &is)
 137 {
 138         int version = readU8(is);
 139         name = deSerializeString(is);
 140         animation.type = (TileAnimationType)readU8(is);
 141         animation.aspect_w = readU16(is);
 142         animation.aspect_h = readU16(is);
 143         animation.length = readF1000(is);
 144         if(version >= 1)
 145                 backface_culling = readU8(is);
 146 }
 147
 148 /*
 149         SimpleSoundSpec serialization
 150 */
 151
 152 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 153                 std::ostream &os)
 154 {
 155         os<<serializeString(ss.name);
 156         writeF1000(os, ss.gain);
 157 }
 158 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 159 {
 160         ss.name = deSerializeString(is);
 161         ss.gain = readF1000(is);
 162 }
 163
 164 /*
 165         ContentFeatures
 166 */
 167
 168 ContentFeatures::ContentFeatures()
 169 {
 170         reset();
 171 }
 172
 173 ContentFeatures::~ContentFeatures()
 174 {
 175 }
 176
 177 void ContentFeatures::reset()
 178 {
 179         /*
 180                 Cached stuff
 181         */
 182 #ifndef SERVER
 183         solidness = 2;
 184         visual_solidness = 0;
 185         backface_culling = true;
 186 #endif
 187         has_on_construct = false;
 188         has_on_destruct = false;
 189         has_after_destruct = false;
 190         /*
 191                 Actual data
 192
 193                 NOTE: Most of this is always overridden by the default values given
 194                       in builtin.lua
 195         */
 196         name = "";
 197         groups.clear();
 198         // Unknown nodes can be dug
 199         groups["dig_immediate"] = 2;
 200         drawtype = NDT_NORMAL;
 201         mesh = "";
 202 #ifndef SERVER
 203         for(u32 i = 0; i < 24; i++)
 204                 mesh_ptr[i] = NULL;
 205 #endif
 206         visual_scale = 1.0;
 207         for(u32 i = 0; i < 6; i++)
 208                 tiledef[i] = TileDef();
 209         for(u16 j = 0; j < CF_SPECIAL_COUNT; j++)
 210                 tiledef_special[j] = TileDef();
 211         alpha = 255;
 212         post_effect_color = video::SColor(0, 0, 0, 0);
 213         param_type = CPT_NONE;
 214         param_type_2 = CPT2_NONE;
 215         is_ground_content = false;
 216         light_propagates = false;
 217         sunlight_propagates = false;
 218         walkable = true;
 219         pointable = true;
 220         diggable = true;
 221         climbable = false;
 222         buildable_to = false;
 223         rightclickable = true;
 224         leveled = 0;
 225         liquid_type = LIQUID_NONE;
 226         liquid_alternative_flowing = "";
 227         liquid_alternative_source = "";
 228         liquid_viscosity = 0;
 229         liquid_renewable = true;
 230         liquid_range = LIQUID_LEVEL_MAX+1;
 231         drowning = 0;
 232         light_source = 0;
 233         damage_per_second = 0;
 234         node_box = NodeBox();
 235         selection_box = NodeBox();
 236         collision_box = NodeBox();
 237         waving = 0;
 238         legacy_facedir_simple = false;
 239         legacy_wallmounted = false;
 240         sound_footstep = SimpleSoundSpec();
 241         sound_dig = SimpleSoundSpec("__group");
 242         sound_dug = SimpleSoundSpec();
 243 }
 244
 245 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 246 {
 247         if(protocol_version < 24){
 248                 serializeOld(os, protocol_version);
 249                 return;
 250         }
 251
 252         writeU8(os, 7); // version
 253         os<<serializeString(name);
 254         writeU16(os, groups.size());
 255         for(ItemGroupList::const_iterator
 256                         i = groups.begin(); i != groups.end(); i++){
 257                 os<<serializeString(i->first);
 258                 writeS16(os, i->second);
 259         }
 260         writeU8(os, drawtype);
 261         writeF1000(os, visual_scale);
 262         writeU8(os, 6);
 263         for(u32 i = 0; i < 6; i++)
 264                 tiledef[i].serialize(os, protocol_version);
 265         writeU8(os, CF_SPECIAL_COUNT);
 266         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++){
 267                 tiledef_special[i].serialize(os, protocol_version);
 268         }
 269         writeU8(os, alpha);
 270         writeU8(os, post_effect_color.getAlpha());
 271         writeU8(os, post_effect_color.getRed());
 272         writeU8(os, post_effect_color.getGreen());
 273         writeU8(os, post_effect_color.getBlue());
 274         writeU8(os, param_type);
 275         writeU8(os, param_type_2);
 276         writeU8(os, is_ground_content);
 277         writeU8(os, light_propagates);
 278         writeU8(os, sunlight_propagates);
 279         writeU8(os, walkable);
 280         writeU8(os, pointable);
 281         writeU8(os, diggable);
 282         writeU8(os, climbable);
 283         writeU8(os, buildable_to);
 284         os<<serializeString(""); // legacy: used to be metadata_name
 285         writeU8(os, liquid_type);
 286         os<<serializeString(liquid_alternative_flowing);
 287         os<<serializeString(liquid_alternative_source);
 288         writeU8(os, liquid_viscosity);
 289         writeU8(os, liquid_renewable);
 290         writeU8(os, light_source);
 291         writeU32(os, damage_per_second);
 292         node_box.serialize(os, protocol_version);
 293         selection_box.serialize(os, protocol_version);
 294         writeU8(os, legacy_facedir_simple);
 295         writeU8(os, legacy_wallmounted);
 296         serializeSimpleSoundSpec(sound_footstep, os);
 297         serializeSimpleSoundSpec(sound_dig, os);
 298         serializeSimpleSoundSpec(sound_dug, os);
 299         writeU8(os, rightclickable);
 300         writeU8(os, drowning);
 301         writeU8(os, leveled);
 302         writeU8(os, liquid_range);
 303         writeU8(os, waving);
 304         // Stuff below should be moved to correct place in a version that otherwise changes
 305         // the protocol version
 306         os<<serializeString(mesh);
 307         collision_box.serialize(os, protocol_version);
 308 }
 309
 310 void ContentFeatures::deSerialize(std::istream &is)
 311 {
 312         int version = readU8(is);
 313         if(version != 7){
 314                 deSerializeOld(is, version);
 315                 return;
 316         }
 317
 318         name = deSerializeString(is);
 319         groups.clear();
 320         u32 groups_size = readU16(is);
 321         for(u32 i = 0; i < groups_size; i++){
 322                 std::string name = deSerializeString(is);
 323                 int value = readS16(is);
 324                 groups[name] = value;
 325         }
 326         drawtype = (enum NodeDrawType)readU8(is);
 327         visual_scale = readF1000(is);
 328         if(readU8(is) != 6)
 329                 throw SerializationError("unsupported tile count");
 330         for(u32 i = 0; i < 6; i++)
 331                 tiledef[i].deSerialize(is);
 332         if(readU8(is) != CF_SPECIAL_COUNT)
 333                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 334         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 335                 tiledef_special[i].deSerialize(is);
 336         alpha = readU8(is);
 337         post_effect_color.setAlpha(readU8(is));
 338         post_effect_color.setRed(readU8(is));
 339         post_effect_color.setGreen(readU8(is));
 340         post_effect_color.setBlue(readU8(is));
 341         param_type = (enum ContentParamType)readU8(is);
 342         param_type_2 = (enum ContentParamType2)readU8(is);
 343         is_ground_content = readU8(is);
 344         light_propagates = readU8(is);
 345         sunlight_propagates = readU8(is);
 346         walkable = readU8(is);
 347         pointable = readU8(is);
 348         diggable = readU8(is);
 349         climbable = readU8(is);
 350         buildable_to = readU8(is);
 351         deSerializeString(is); // legacy: used to be metadata_name
 352         liquid_type = (enum LiquidType)readU8(is);
 353         liquid_alternative_flowing = deSerializeString(is);
 354         liquid_alternative_source = deSerializeString(is);
 355         liquid_viscosity = readU8(is);
 356         liquid_renewable = readU8(is);
 357         light_source = readU8(is);
 358         damage_per_second = readU32(is);
 359         node_box.deSerialize(is);
 360         selection_box.deSerialize(is);
 361         legacy_facedir_simple = readU8(is);
 362         legacy_wallmounted = readU8(is);
 363         deSerializeSimpleSoundSpec(sound_footstep, is);
 364         deSerializeSimpleSoundSpec(sound_dig, is);
 365         deSerializeSimpleSoundSpec(sound_dug, is);
 366         rightclickable = readU8(is);
 367         drowning = readU8(is);
 368         leveled = readU8(is);
 369         liquid_range = readU8(is);
 370         waving = readU8(is);
 371         // If you add anything here, insert it primarily inside the try-catch
 372         // block to not need to increase the version.
 373         try{
 374                 // Stuff below should be moved to correct place in a version that
 375                 // otherwise changes the protocol version
 376         mesh = deSerializeString(is);
 377         collision_box.deSerialize(is);
 378         }catch(SerializationError &e) {};
 379 }
 380
 381 /*
 382         CNodeDefManager
 383 */
 384
 385 class CNodeDefManager: public IWritableNodeDefManager {
 386 public:
 387         CNodeDefManager();
 388         virtual ~CNodeDefManager();
 389         void clear();
 390         virtual IWritableNodeDefManager *clone();
 391         inline virtual const ContentFeatures& get(content_t c) const;
 392         inline virtual const ContentFeatures& get(const MapNode &n) const;
 393         virtual bool getId(const std::string &name, content_t &result) const;
 394         virtual content_t getId(const std::string &name) const;
 395         virtual void getIds(const std::string &name, std::set<content_t> &result) const;
 396         virtual const ContentFeatures& get(const std::string &name) const;
 397         content_t allocateId();
 398         virtual content_t set(const std::string &name, const ContentFeatures &def);
 399         virtual content_t allocateDummy(const std::string &name);
 400         virtual void updateAliases(IItemDefManager *idef);
 401         virtual void updateTextures(IGameDef *gamedef,
 402         /*argument: */void (*progress_callback)(void *progress_args, u32 progress, u32 max_progress),
 403         /*argument: */void *progress_callback_args);
 404         void serialize(std::ostream &os, u16 protocol_version);
 405         void deSerialize(std::istream &is);
 406
 407         inline virtual bool getNodeRegistrationStatus() const;
 408         inline virtual void setNodeRegistrationStatus(bool completed);
 409
 410         virtual void pendNodeResolve(NodeResolveInfo *nri);
 411         virtual void cancelNodeResolve(NodeResolver *resolver);
 412         virtual void runNodeResolverCallbacks();
 413
 414         virtual bool getIdFromResolveInfo(NodeResolveInfo *nri,
 415                 const std::string &node_alt, content_t c_fallback, content_t &result);
 416         virtual bool getIdsFromResolveInfo(NodeResolveInfo *nri,
 417                 std::vector<content_t> &result);
 418
 419 private:
 420         void addNameIdMapping(content_t i, std::string name);
 421 #ifndef SERVER
 422         void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
 423                 u32 shader_id, bool use_normal_texture, bool backface_culling,
 424                 u8 alpha, u8 material_type);
 425 #endif
 426
 427         // Features indexed by id
 428         std::vector<ContentFeatures> m_content_features;
 429
 430         // A mapping for fast converting back and forth between names and ids
 431         NameIdMapping m_name_id_mapping;
 432
 433         // Like m_name_id_mapping, but only from names to ids, and includes
 434         // item aliases too. Updated by updateAliases()
 435         // Note: Not serialized.
 436
 437         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 438
 439         // A mapping from groups to a list of content_ts (and their levels)
 440         // that belong to it.  Necessary for a direct lookup in getIds().
 441         // Note: Not serialized.
 442         std::map<std::string, GroupItems> m_group_to_items;
 443
 444         // Next possibly free id
 445         content_t m_next_id;
 446
 447         // List of node strings and node resolver callbacks to perform
 448         std::list<NodeResolveInfo *> m_pending_node_lookups;
 449
 450         // True when all nodes have been registered
 451         bool m_node_registration_complete;
 452 };
 453
 454
 455 CNodeDefManager::CNodeDefManager()
 456 {
 457         clear();
 458 }
 459
 460
 461 CNodeDefManager::~CNodeDefManager()
 462 {
 463 #ifndef SERVER
 464         for (u32 i = 0; i < m_content_features.size(); i++) {
 465                 ContentFeatures *f = &m_content_features[i];
 466                 for (u32 j = 0; j < 24; j++) {
 467                         if (f->mesh_ptr[j])
 468                                 f->mesh_ptr[j]->drop();
 469                 }
 470         }
 471 #endif
 472 }
 473
 474
 475 void CNodeDefManager::clear()
 476 {
 477         m_content_features.clear();
 478         m_name_id_mapping.clear();
 479         m_name_id_mapping_with_aliases.clear();
 480         m_group_to_items.clear();
 481         m_next_id = 0;
 482
 483         m_node_registration_complete = false;
 484         for (std::list<NodeResolveInfo *>::iterator
 485                         it = m_pending_node_lookups.begin();
 486                         it != m_pending_node_lookups.end();
 487                         ++it)
 488                 delete *it;
 489         m_pending_node_lookups.clear();
 490
 491         u32 initial_length = 0;
 492         initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 493         initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 494         initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 495         m_content_features.resize(initial_length);
 496
 497         // Set CONTENT_UNKNOWN
 498         {
 499                 ContentFeatures f;
 500                 f.name = "unknown";
 501                 // Insert directly into containers
 502                 content_t c = CONTENT_UNKNOWN;
 503                 m_content_features[c] = f;
 504                 addNameIdMapping(c, f.name);
 505         }
 506
 507         // Set CONTENT_AIR
 508         {
 509                 ContentFeatures f;
 510                 f.name                = "air";
 511                 f.drawtype            = NDT_AIRLIKE;
 512                 f.param_type          = CPT_LIGHT;
 513                 f.light_propagates    = true;
 514                 f.sunlight_propagates = true;
 515                 f.walkable            = false;
 516                 f.pointable           = false;
 517                 f.diggable            = false;
 518                 f.buildable_to        = true;
 519                 f.is_ground_content   = true;
 520                 // Insert directly into containers
 521                 content_t c = CONTENT_AIR;
 522                 m_content_features[c] = f;
 523                 addNameIdMapping(c, f.name);
 524         }
 525
 526         // Set CONTENT_IGNORE
 527         {
 528                 ContentFeatures f;
 529                 f.name                = "ignore";
 530                 f.drawtype            = NDT_AIRLIKE;
 531                 f.param_type          = CPT_NONE;
 532                 f.light_propagates    = false;
 533                 f.sunlight_propagates = false;
 534                 f.walkable            = false;
 535                 f.pointable           = false;
 536                 f.diggable            = false;
 537                 f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 538                 f.is_ground_content   = true;
 539                 // Insert directly into containers
 540                 content_t c = CONTENT_IGNORE;
 541                 m_content_features[c] = f;
 542                 addNameIdMapping(c, f.name);
 543         }
 544 }
 545
 546
 547 IWritableNodeDefManager *CNodeDefManager::clone()
 548 {
 549         CNodeDefManager *mgr = new CNodeDefManager();
 550         *mgr = *this;
 551         return mgr;
 552 }
 553
 554
 555 inline const ContentFeatures& CNodeDefManager::get(content_t c) const
 556 {
 557         return c < m_content_features.size()
 558                         ? m_content_features[c] : m_content_features[CONTENT_UNKNOWN];
 559 }
 560
 561
 562 inline const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
 563 {
 564         return get(n.getContent());
 565 }
 566
 567
 568 bool CNodeDefManager::getId(const std::string &name, content_t &result) const
 569 {
 570         std::map<std::string, content_t>::const_iterator
 571                 i = m_name_id_mapping_with_aliases.find(name);
 572         if(i == m_name_id_mapping_with_aliases.end())
 573                 return false;
 574         result = i->second;
 575         return true;
 576 }
 577
 578
 579 content_t CNodeDefManager::getId(const std::string &name) const
 580 {
 581         content_t id = CONTENT_IGNORE;
 582         getId(name, id);
 583         return id;
 584 }
 585
 586
 587 void CNodeDefManager::getIds(const std::string &name,
 588                 std::set<content_t> &result) const
 589 {
 590         //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 591         if (name.substr(0,6) != "group:") {
 592                 content_t id = CONTENT_IGNORE;
 593                 if(getId(name, id))
 594                         result.insert(id);
 595                 return;
 596         }
 597         std::string group = name.substr(6);
 598
 599         std::map<std::string, GroupItems>::const_iterator
 600                 i = m_group_to_items.find(group);
 601         if (i == m_group_to_items.end())
 602                 return;
 603
 604         const GroupItems &items = i->second;
 605         for (GroupItems::const_iterator j = items.begin();
 606                 j != items.end(); ++j) {
 607                 if ((*j).second != 0)
 608                         result.insert((*j).first);
 609         }
 610         //printf("getIds: %dus\n", t.stop());
 611 }
 612
 613
 614 const ContentFeatures& CNodeDefManager::get(const std::string &name) const
 615 {
 616         content_t id = CONTENT_UNKNOWN;
 617         getId(name, id);
 618         return get(id);
 619 }
 620
 621
 622 // returns CONTENT_IGNORE if no free ID found
 623 content_t CNodeDefManager::allocateId()
 624 {
 625         for (content_t id = m_next_id;
 626                         id >= m_next_id; // overflow?
 627                         ++id) {
 628                 while (id >= m_content_features.size()) {
 629                         m_content_features.push_back(ContentFeatures());
 630                 }
 631                 const ContentFeatures &f = m_content_features[id];
 632                 if (f.name == "") {
 633                         m_next_id = id + 1;
 634                         return id;
 635                 }
 636         }
 637         // If we arrive here, an overflow occurred in id.
 638         // That means no ID was found
 639         return CONTENT_IGNORE;
 640 }
 641
 642
 643 // IWritableNodeDefManager
 644 content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
 645 {
 646         // Pre-conditions
 647         assert(name != "");
 648         assert(name == def.name);
 649
 650         // Don't allow redefining ignore (but allow air and unknown)
 651         if (name == "ignore") {
 652                 infostream << "NodeDefManager: WARNING: Ignoring "
 653                         "CONTENT_IGNORE redefinition"<<std::endl;
 654                 return CONTENT_IGNORE;
 655         }
 656
 657         content_t id = CONTENT_IGNORE;
 658         if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 659                 // Get new id
 660                 id = allocateId();
 661                 if (id == CONTENT_IGNORE) {
 662                         infostream << "NodeDefManager: WARNING: Absolute "
 663                                 "limit reached" << std::endl;
 664                         return CONTENT_IGNORE;
 665                 }
 666                 assert(id != CONTENT_IGNORE);
 667                 addNameIdMapping(id, name);
 668         }
 669         m_content_features[id] = def;
 670         verbosestream << "NodeDefManager: registering content id \"" << id
 671                 << "\": name=\"" << def.name << "\""<<std::endl;
 672
 673         // Add this content to the list of all groups it belongs to
 674         // FIXME: This should remove a node from groups it no longer
 675         // belongs to when a node is re-registered
 676         for (ItemGroupList::const_iterator i = def.groups.begin();
 677                 i != def.groups.end(); ++i) {
 678                 std::string group_name = i->first;
 679
 680                 std::map<std::string, GroupItems>::iterator
 681                         j = m_group_to_items.find(group_name);
 682                 if (j == m_group_to_items.end()) {
 683                         m_group_to_items[group_name].push_back(
 684                                         std::make_pair(id, i->second));
 685                 } else {
 686                         GroupItems &items = j->second;
 687                         items.push_back(std::make_pair(id, i->second));
 688                 }
 689         }
 690         return id;
 691 }
 692
 693
 694 content_t CNodeDefManager::allocateDummy(const std::string &name)
 695 {
 696         assert(name != "");     // Pre-condition
 697         ContentFeatures f;
 698         f.name = name;
 699         return set(name, f);
 700 }
 701
 702
 703 void CNodeDefManager::updateAliases(IItemDefManager *idef)
 704 {
 705         std::set<std::string> all = idef->getAll();
 706         m_name_id_mapping_with_aliases.clear();
 707         for (std::set<std::string>::iterator
 708                         i = all.begin(); i != all.end(); i++) {
 709                 std::string name = *i;
 710                 std::string convert_to = idef->getAlias(name);
 711                 content_t id;
 712                 if (m_name_id_mapping.getId(convert_to, id)) {
 713                         m_name_id_mapping_with_aliases.insert(
 714                                         std::make_pair(name, id));
 715                 }
 716         }
 717 }
 718
 719
 720 void CNodeDefManager::updateTextures(IGameDef *gamedef,
 721         void (*progress_callback)(void *progress_args, u32 progress, u32 max_progress),
 722         void *progress_callback_args)
 723 {
 724 #ifndef SERVER
 725         infostream << "CNodeDefManager::updateTextures(): Updating "
 726                 "textures in node definitions" << std::endl;
 727
 728         ITextureSource *tsrc = gamedef->tsrc();
 729         IShaderSource *shdsrc = gamedef->getShaderSource();
 730         scene::ISceneManager* smgr = gamedef->getSceneManager();
 731         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 732
 733         bool new_style_water           = g_settings->getBool("new_style_water");
 734         bool new_style_leaves          = g_settings->getBool("new_style_leaves");
 735         bool connected_glass           = g_settings->getBool("connected_glass");
 736         bool opaque_water              = g_settings->getBool("opaque_water");
 737         bool enable_shaders            = g_settings->getBool("enable_shaders");
 738         bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 739         bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 740         bool enable_mesh_cache         = g_settings->getBool("enable_mesh_cache");
 741
 742         bool use_normal_texture = enable_shaders &&
 743                 (enable_bumpmapping || enable_parallax_occlusion);
 744
 745         u32 size = m_content_features.size();
 746
 747         for (u32 i = 0; i < size; i++) {
 748                 ContentFeatures *f = &m_content_features[i];
 749
 750                 // Figure out the actual tiles to use
 751                 TileDef tiledef[6];
 752                 for (u32 j = 0; j < 6; j++) {
 753                         tiledef[j] = f->tiledef[j];
 754                         if (tiledef[j].name == "")
 755                                 tiledef[j].name = "unknown_node.png";
 756                 }
 757
 758                 bool is_liquid = false;
 759                 bool is_water_surface = false;
 760
 761                 u8 material_type = (f->alpha == 255) ?
 762                         TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 763
 764                 switch (f->drawtype) {
 765                 default:
 766                 case NDT_NORMAL:
 767                         f->solidness = 2;
 768                         break;
 769                 case NDT_AIRLIKE:
 770                         f->solidness = 0;
 771                         break;
 772                 case NDT_LIQUID:
 773                         assert(f->liquid_type == LIQUID_SOURCE);
 774                         if (opaque_water)
 775                                 f->alpha = 255;
 776                         if (new_style_water){
 777                                 f->solidness = 0;
 778                         } else {
 779                                 f->solidness = 1;
 780                                 f->backface_culling = false;
 781                         }
 782                         is_liquid = true;
 783                         break;
 784                 case NDT_FLOWINGLIQUID:
 785                         assert(f->liquid_type == LIQUID_FLOWING);
 786                         f->solidness = 0;
 787                         if (opaque_water)
 788                                 f->alpha = 255;
 789                         is_liquid = true;
 790                         break;
 791                 case NDT_GLASSLIKE:
 792                         f->solidness = 0;
 793                         f->visual_solidness = 1;
 794                         break;
 795                 case NDT_GLASSLIKE_FRAMED:
 796                         f->solidness = 0;
 797                         f->visual_solidness = 1;
 798                         break;
 799                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 800                         f->solidness = 0;
 801                         f->visual_solidness = 1;
 802                         f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 803                         break;
 804                 case NDT_ALLFACES:
 805                         f->solidness = 0;
 806                         f->visual_solidness = 1;
 807                         break;
 808                 case NDT_ALLFACES_OPTIONAL:
 809                         if (new_style_leaves) {
 810                                 f->drawtype = NDT_ALLFACES;
 811                                 f->solidness = 0;
 812                                 f->visual_solidness = 1;
 813                         } else {
 814                                 f->drawtype = NDT_NORMAL;
 815                                 f->solidness = 2;
 816                                 for (u32 i = 0; i < 6; i++)
 817                                         tiledef[i].name += std::string("^[noalpha");
 818                         }
 819                         if (f->waving == 1)
 820                                 material_type = TILE_MATERIAL_WAVING_LEAVES;
 821                         break;
 822                 case NDT_PLANTLIKE:
 823                         f->solidness = 0;
 824                         f->backface_culling = false;
 825                         if (f->waving == 1)
 826                                 material_type = TILE_MATERIAL_WAVING_PLANTS;
 827                         break;
 828                 case NDT_FIRELIKE:
 829                         f->backface_culling = false;
 830                         f->solidness = 0;
 831                         break;
 832                 case NDT_MESH:
 833                         f->solidness = 0;
 834                         f->backface_culling = false;
 835                         break;
 836                 case NDT_TORCHLIKE:
 837                 case NDT_SIGNLIKE:
 838                 case NDT_FENCELIKE:
 839                 case NDT_RAILLIKE:
 840                 case NDT_NODEBOX:
 841                         f->solidness = 0;
 842                         break;
 843                 }
 844
 845                 if (is_liquid) {
 846                         material_type = (f->alpha == 255) ?
 847                                 TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 848                         if (f->name == "default:water_source")
 849                                 is_water_surface = true;
 850                 }
 851
 852                 u32 tile_shader[6];
 853                 for (u16 j = 0; j < 6; j++) {
 854                         tile_shader[j] = shdsrc->getShader("nodes_shader",
 855                                 material_type, f->drawtype);
 856                 }
 857
 858                 if (is_water_surface) {
 859                         tile_shader[0] = shdsrc->getShader("water_surface_shader",
 860                                 material_type, f->drawtype);
 861                 }
 862
 863                 // Tiles (fill in f->tiles[])
 864                 for (u16 j = 0; j < 6; j++) {
 865                         fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
 866                                 use_normal_texture, f->backface_culling, f->alpha, material_type);
 867                 }
 868
 869                 // Special tiles (fill in f->special_tiles[])
 870                 for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
 871                         fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
 872                                 tile_shader[j], use_normal_texture,
 873                                 f->tiledef_special[j].backface_culling, f->alpha, material_type);
 874                 }
 875
 876                 if ((f->drawtype == NDT_MESH) && (f->mesh != "")) {
 877                         // Meshnode drawtype
 878                         // Read the mesh and apply scale
 879                         f->mesh_ptr[0] = gamedef->getMesh(f->mesh);
 880                         if (f->mesh_ptr[0]){
 881                                 v3f scale = v3f(1.0, 1.0, 1.0) * BS * f->visual_scale;
 882                                 scaleMesh(f->mesh_ptr[0], scale);
 883                                 recalculateBoundingBox(f->mesh_ptr[0]);
 884                                 meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 885                         }
 886                 } else if ((f->drawtype == NDT_NODEBOX) &&
 887                                 ((f->node_box.type == NODEBOX_REGULAR) ||
 888                                 (f->node_box.type == NODEBOX_FIXED)) &&
 889                                 (!f->node_box.fixed.empty())) {
 890                         //Convert regular nodebox nodes to meshnodes
 891                         //Change the drawtype and apply scale
 892                         f->drawtype = NDT_MESH;
 893                         f->mesh_ptr[0] = convertNodeboxNodeToMesh(f);
 894                         v3f scale = v3f(1.0, 1.0, 1.0) * f->visual_scale;
 895                         scaleMesh(f->mesh_ptr[0], scale);
 896                         recalculateBoundingBox(f->mesh_ptr[0]);
 897                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 898                 }
 899
 900                 //Cache 6dfacedir and wallmounted rotated clones of meshes
 901                 if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_FACEDIR)) {
 902                         for (u16 j = 1; j < 24; j++) {
 903                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 904                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], j);
 905                                 recalculateBoundingBox(f->mesh_ptr[j]);
 906                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 907                         }
 908                 } else if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_WALLMOUNTED)) {
 909                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
 910                         for (u16 j = 1; j < 6; j++) {
 911                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 912                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], wm_to_6d[j]);
 913                                 recalculateBoundingBox(f->mesh_ptr[j]);
 914                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 915                         }
 916                         rotateMeshBy6dFacedir(f->mesh_ptr[0], wm_to_6d[0]);
 917                         recalculateBoundingBox(f->mesh_ptr[0]);
 918                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 919                 }
 920
 921                 progress_callback(progress_callback_args, i, size);
 922         }
 923 #endif
 924 }
 925
 926
 927 #ifndef SERVER
 928 void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
 929                 TileDef *tiledef, u32 shader_id, bool use_normal_texture,
 930                 bool backface_culling, u8 alpha, u8 material_type)
 931 {
 932         tile->shader_id     = shader_id;
 933         tile->texture       = tsrc->getTextureForMesh(tiledef->name, &tile->texture_id);
 934         tile->alpha         = alpha;
 935         tile->material_type = material_type;
 936
 937         // Normal texture
 938         if (use_normal_texture)
 939                 tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
 940
 941         // Material flags
 942         tile->material_flags = 0;
 943         if (backface_culling)
 944                 tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 945         if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
 946                 tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 947
 948         // Animation parameters
 949         int frame_count = 1;
 950         if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
 951                 // Get texture size to determine frame count by aspect ratio
 952                 v2u32 size = tile->texture->getOriginalSize();
 953                 int frame_height = (float)size.X /
 954                                 (float)tiledef->animation.aspect_w *
 955                                 (float)tiledef->animation.aspect_h;
 956                 frame_count = size.Y / frame_height;
 957                 int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
 958                 tile->animation_frame_count = frame_count;
 959                 tile->animation_frame_length_ms = frame_length_ms;
 960         }
 961
 962         if (frame_count == 1) {
 963                 tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 964         } else {
 965                 std::ostringstream os(std::ios::binary);
 966                 tile->frames.resize(frame_count);
 967
 968                 for (int i = 0; i < frame_count; i++) {
 969
 970                         FrameSpec frame;
 971
 972                         os.str("");
 973                         os << tiledef->name << "^[verticalframe:"
 974                                 << frame_count << ":" << i;
 975
 976                         frame.texture = tsrc->getTextureForMesh(os.str(), &frame.texture_id);
 977                         if (tile->normal_texture)
 978                                 frame.normal_texture = tsrc->getNormalTexture(os.str());
 979                         tile->frames[i] = frame;
 980                 }
 981         }
 982 }
 983 #endif
 984
 985
 986 void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version)
 987 {
 988         writeU8(os, 1); // version
 989         u16 count = 0;
 990         std::ostringstream os2(std::ios::binary);
 991         for (u32 i = 0; i < m_content_features.size(); i++) {
 992                 if (i == CONTENT_IGNORE || i == CONTENT_AIR
 993                                 || i == CONTENT_UNKNOWN)
 994                         continue;
 995                 ContentFeatures *f = &m_content_features[i];
 996                 if (f->name == "")
 997                         continue;
 998                 writeU16(os2, i);
 999                 // Wrap it in a string to allow different lengths without
1000                 // strict version incompatibilities
1001                 std::ostringstream wrapper_os(std::ios::binary);
1002                 f->serialize(wrapper_os, protocol_version);
1003                 os2<<serializeString(wrapper_os.str());
1004
1005                 // must not overflow
1006                 u16 next = count + 1;
1007                 FATAL_ERROR_IF(next < count, "Overflow");
1008                 count++;
1009         }
1010         writeU16(os, count);
1011         os << serializeLongString(os2.str());
1012 }
1013
1014
1015 void CNodeDefManager::deSerialize(std::istream &is)
1016 {
1017         clear();
1018         int version = readU8(is);
1019         if (version != 1)
1020                 throw SerializationError("unsupported NodeDefinitionManager version");
1021         u16 count = readU16(is);
1022         std::istringstream is2(deSerializeLongString(is), std::ios::binary);
1023         ContentFeatures f;
1024         for (u16 n = 0; n < count; n++) {
1025                 u16 i = readU16(is2);
1026
1027                 // Read it from the string wrapper
1028                 std::string wrapper = deSerializeString(is2);
1029                 std::istringstream wrapper_is(wrapper, std::ios::binary);
1030                 f.deSerialize(wrapper_is);
1031
1032                 // Check error conditions
1033                 if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
1034                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1035                                 "not changing builtin node " << i << std::endl;
1036                         continue;
1037                 }
1038                 if (f.name == "") {
1039                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1040                                 "received empty name" << std::endl;
1041                         continue;
1042                 }
1043
1044                 // Ignore aliases
1045                 u16 existing_id;
1046                 if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
1047                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1048                                 "already defined with different ID: " << f.name << std::endl;
1049                         continue;
1050                 }
1051
1052                 // All is ok, add node definition with the requested ID
1053                 if (i >= m_content_features.size())
1054                         m_content_features.resize((u32)(i) + 1);
1055                 m_content_features[i] = f;
1056                 addNameIdMapping(i, f.name);
1057                 verbosestream << "deserialized " << f.name << std::endl;
1058         }
1059 }
1060
1061
1062 void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
1063 {
1064         m_name_id_mapping.set(i, name);
1065         m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
1066 }
1067
1068
1069 IWritableNodeDefManager *createNodeDefManager()
1070 {
1071         return new CNodeDefManager();
1072 }
1073
1074
1075 //// Serialization of old ContentFeatures formats
1076 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
1077 {
1078         if (protocol_version == 13)
1079         {
1080                 writeU8(os, 5); // version
1081                 os<<serializeString(name);
1082                 writeU16(os, groups.size());
1083                 for (ItemGroupList::const_iterator
1084                                 i = groups.begin(); i != groups.end(); i++) {
1085                         os<<serializeString(i->first);
1086                         writeS16(os, i->second);
1087                 }
1088                 writeU8(os, drawtype);
1089                 writeF1000(os, visual_scale);
1090                 writeU8(os, 6);
1091                 for (u32 i = 0; i < 6; i++)
1092                         tiledef[i].serialize(os, protocol_version);
1093                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1094                 writeU8(os, 2);
1095                 for (u32 i = 0; i < 2; i++)
1096                         tiledef_special[i].serialize(os, protocol_version);
1097                 writeU8(os, alpha);
1098                 writeU8(os, post_effect_color.getAlpha());
1099                 writeU8(os, post_effect_color.getRed());
1100                 writeU8(os, post_effect_color.getGreen());
1101                 writeU8(os, post_effect_color.getBlue());
1102                 writeU8(os, param_type);
1103                 writeU8(os, param_type_2);
1104                 writeU8(os, is_ground_content);
1105                 writeU8(os, light_propagates);
1106                 writeU8(os, sunlight_propagates);
1107                 writeU8(os, walkable);
1108                 writeU8(os, pointable);
1109                 writeU8(os, diggable);
1110                 writeU8(os, climbable);
1111                 writeU8(os, buildable_to);
1112                 os<<serializeString(""); // legacy: used to be metadata_name
1113                 writeU8(os, liquid_type);
1114                 os<<serializeString(liquid_alternative_flowing);
1115                 os<<serializeString(liquid_alternative_source);
1116                 writeU8(os, liquid_viscosity);
1117                 writeU8(os, light_source);
1118                 writeU32(os, damage_per_second);
1119                 node_box.serialize(os, protocol_version);
1120                 selection_box.serialize(os, protocol_version);
1121                 writeU8(os, legacy_facedir_simple);
1122                 writeU8(os, legacy_wallmounted);
1123                 serializeSimpleSoundSpec(sound_footstep, os);
1124                 serializeSimpleSoundSpec(sound_dig, os);
1125                 serializeSimpleSoundSpec(sound_dug, os);
1126         }
1127         else if (protocol_version > 13 && protocol_version < 24) {
1128                 writeU8(os, 6); // version
1129                 os<<serializeString(name);
1130                 writeU16(os, groups.size());
1131                 for (ItemGroupList::const_iterator
1132                         i = groups.begin(); i != groups.end(); i++) {
1133                                 os<<serializeString(i->first);
1134                                 writeS16(os, i->second);
1135                 }
1136                 writeU8(os, drawtype);
1137                 writeF1000(os, visual_scale);
1138                 writeU8(os, 6);
1139                 for (u32 i = 0; i < 6; i++)
1140                         tiledef[i].serialize(os, protocol_version);
1141                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1142                 writeU8(os, 2);
1143                 for (u32 i = 0; i < 2; i++)
1144                         tiledef_special[i].serialize(os, protocol_version);
1145                 writeU8(os, alpha);
1146                 writeU8(os, post_effect_color.getAlpha());
1147                 writeU8(os, post_effect_color.getRed());
1148                 writeU8(os, post_effect_color.getGreen());
1149                 writeU8(os, post_effect_color.getBlue());
1150                 writeU8(os, param_type);
1151                 writeU8(os, param_type_2);
1152                 writeU8(os, is_ground_content);
1153                 writeU8(os, light_propagates);
1154                 writeU8(os, sunlight_propagates);
1155                 writeU8(os, walkable);
1156                 writeU8(os, pointable);
1157                 writeU8(os, diggable);
1158                 writeU8(os, climbable);
1159                 writeU8(os, buildable_to);
1160                 os<<serializeString(""); // legacy: used to be metadata_name
1161                 writeU8(os, liquid_type);
1162                 os<<serializeString(liquid_alternative_flowing);
1163                 os<<serializeString(liquid_alternative_source);
1164                 writeU8(os, liquid_viscosity);
1165                 writeU8(os, liquid_renewable);
1166                 writeU8(os, light_source);
1167                 writeU32(os, damage_per_second);
1168                 node_box.serialize(os, protocol_version);
1169                 selection_box.serialize(os, protocol_version);
1170                 writeU8(os, legacy_facedir_simple);
1171                 writeU8(os, legacy_wallmounted);
1172                 serializeSimpleSoundSpec(sound_footstep, os);
1173                 serializeSimpleSoundSpec(sound_dig, os);
1174                 serializeSimpleSoundSpec(sound_dug, os);
1175                 writeU8(os, rightclickable);
1176                 writeU8(os, drowning);
1177                 writeU8(os, leveled);
1178                 writeU8(os, liquid_range);
1179         } else
1180                 throw SerializationError("ContentFeatures::serialize(): "
1181                         "Unsupported version requested");
1182 }
1183
1184
1185 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1186 {
1187         if (version == 5) // In PROTOCOL_VERSION 13
1188         {
1189                 name = deSerializeString(is);
1190                 groups.clear();
1191                 u32 groups_size = readU16(is);
1192                 for(u32 i=0; i<groups_size; i++){
1193                         std::string name = deSerializeString(is);
1194                         int value = readS16(is);
1195                         groups[name] = value;
1196                 }
1197                 drawtype = (enum NodeDrawType)readU8(is);
1198                 visual_scale = readF1000(is);
1199                 if (readU8(is) != 6)
1200                         throw SerializationError("unsupported tile count");
1201                 for (u32 i = 0; i < 6; i++)
1202                         tiledef[i].deSerialize(is);
1203                 if (readU8(is) != CF_SPECIAL_COUNT)
1204                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1205                 for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
1206                         tiledef_special[i].deSerialize(is);
1207                 alpha = readU8(is);
1208                 post_effect_color.setAlpha(readU8(is));
1209                 post_effect_color.setRed(readU8(is));
1210                 post_effect_color.setGreen(readU8(is));
1211                 post_effect_color.setBlue(readU8(is));
1212                 param_type = (enum ContentParamType)readU8(is);
1213                 param_type_2 = (enum ContentParamType2)readU8(is);
1214                 is_ground_content = readU8(is);
1215                 light_propagates = readU8(is);
1216                 sunlight_propagates = readU8(is);
1217                 walkable = readU8(is);
1218                 pointable = readU8(is);
1219                 diggable = readU8(is);
1220                 climbable = readU8(is);
1221                 buildable_to = readU8(is);
1222                 deSerializeString(is); // legacy: used to be metadata_name
1223                 liquid_type = (enum LiquidType)readU8(is);
1224                 liquid_alternative_flowing = deSerializeString(is);
1225                 liquid_alternative_source = deSerializeString(is);
1226                 liquid_viscosity = readU8(is);
1227                 light_source = readU8(is);
1228                 damage_per_second = readU32(is);
1229                 node_box.deSerialize(is);
1230                 selection_box.deSerialize(is);
1231                 legacy_facedir_simple = readU8(is);
1232                 legacy_wallmounted = readU8(is);
1233                 deSerializeSimpleSoundSpec(sound_footstep, is);
1234                 deSerializeSimpleSoundSpec(sound_dig, is);
1235                 deSerializeSimpleSoundSpec(sound_dug, is);
1236         } else if (version == 6) {
1237                 name = deSerializeString(is);
1238                 groups.clear();
1239                 u32 groups_size = readU16(is);
1240                 for (u32 i = 0; i < groups_size; i++) {
1241                         std::string name = deSerializeString(is);
1242                         int     value = readS16(is);
1243                         groups[name] = value;
1244                 }
1245                 drawtype = (enum NodeDrawType)readU8(is);
1246                 visual_scale = readF1000(is);
1247                 if (readU8(is) != 6)
1248                         throw SerializationError("unsupported tile count");
1249                 for (u32 i = 0; i < 6; i++)
1250                         tiledef[i].deSerialize(is);
1251                 // CF_SPECIAL_COUNT in version 6 = 2
1252                 if (readU8(is) != 2)
1253                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1254                 for (u32 i = 0; i < 2; i++)
1255                         tiledef_special[i].deSerialize(is);
1256                 alpha = readU8(is);
1257                 post_effect_color.setAlpha(readU8(is));
1258                 post_effect_color.setRed(readU8(is));
1259                 post_effect_color.setGreen(readU8(is));
1260                 post_effect_color.setBlue(readU8(is));
1261                 param_type = (enum ContentParamType)readU8(is);
1262                 param_type_2 = (enum ContentParamType2)readU8(is);
1263                 is_ground_content = readU8(is);
1264                 light_propagates = readU8(is);
1265                 sunlight_propagates = readU8(is);
1266                 walkable = readU8(is);
1267                 pointable = readU8(is);
1268                 diggable = readU8(is);
1269                 climbable = readU8(is);
1270                 buildable_to = readU8(is);
1271                 deSerializeString(is); // legacy: used to be metadata_name
1272                 liquid_type = (enum LiquidType)readU8(is);
1273                 liquid_alternative_flowing = deSerializeString(is);
1274                 liquid_alternative_source = deSerializeString(is);
1275                 liquid_viscosity = readU8(is);
1276                 liquid_renewable = readU8(is);
1277                 light_source = readU8(is);
1278                 damage_per_second = readU32(is);
1279                 node_box.deSerialize(is);
1280                 selection_box.deSerialize(is);
1281                 legacy_facedir_simple = readU8(is);
1282                 legacy_wallmounted = readU8(is);
1283                 deSerializeSimpleSoundSpec(sound_footstep, is);
1284                 deSerializeSimpleSoundSpec(sound_dig, is);
1285                 deSerializeSimpleSoundSpec(sound_dug, is);
1286                 rightclickable = readU8(is);
1287                 drowning = readU8(is);
1288                 leveled = readU8(is);
1289                 liquid_range = readU8(is);
1290         } else {
1291                 throw SerializationError("unsupported ContentFeatures version");
1292         }
1293 }
1294
1295
1296 inline bool CNodeDefManager::getNodeRegistrationStatus() const
1297 {
1298         return m_node_registration_complete;
1299 }
1300
1301
1302 inline void CNodeDefManager::setNodeRegistrationStatus(bool completed)
1303 {
1304         m_node_registration_complete = completed;
1305 }
1306
1307
1308 void CNodeDefManager::pendNodeResolve(NodeResolveInfo *nri)
1309 {
1310         nri->resolver->m_ndef = this;
1311         if (m_node_registration_complete) {
1312                 nri->resolver->resolveNodeNames(nri);
1313                 nri->resolver->m_lookup_done = true;
1314                 delete nri;
1315         } else {
1316                 m_pending_node_lookups.push_back(nri);
1317         }
1318 }
1319
1320
1321 void CNodeDefManager::cancelNodeResolve(NodeResolver *resolver)
1322 {
1323         for (std::list<NodeResolveInfo *>::iterator
1324                         it = m_pending_node_lookups.begin();
1325                         it != m_pending_node_lookups.end();
1326                         ++it) {
1327                 NodeResolveInfo *nri = *it;
1328                 if (resolver == nri->resolver) {
1329                         it = m_pending_node_lookups.erase(it);
1330                         delete nri;
1331                 }
1332         }
1333 }
1334
1335
1336 void CNodeDefManager::runNodeResolverCallbacks()
1337 {
1338         while (!m_pending_node_lookups.empty()) {
1339                 NodeResolveInfo *nri = m_pending_node_lookups.front();
1340                 m_pending_node_lookups.pop_front();
1341                 nri->resolver->resolveNodeNames(nri);
1342                 nri->resolver->m_lookup_done = true;
1343                 delete nri;
1344         }
1345 }
1346
1347
1348 bool CNodeDefManager::getIdFromResolveInfo(NodeResolveInfo *nri,
1349         const std::string &node_alt, content_t c_fallback, content_t &result)
1350 {
1351         if (nri->nodenames.empty()) {
1352                 result = c_fallback;
1353                 errorstream << "Resolver empty nodename list" << std::endl;
1354                 return false;
1355         }
1356
1357         content_t c;
1358         std::string name = nri->nodenames.front();
1359         nri->nodenames.pop_front();
1360
1361         bool success = getId(name, c);
1362         if (!success && node_alt != "") {
1363                 name = node_alt;
1364                 success = getId(name, c);
1365         }
1366
1367         if (!success) {
1368                 errorstream << "Resolver: Failed to resolve node name '" << name
1369                         << "'." << std::endl;
1370                 c = c_fallback;
1371         }
1372
1373         result = c;
1374         return success;
1375 }
1376
1377
1378 bool CNodeDefManager::getIdsFromResolveInfo(NodeResolveInfo *nri,
1379         std::vector<content_t> &result)
1380 {
1381         bool success = true;
1382
1383         if (nri->nodelistinfo.empty()) {
1384                 errorstream << "Resolver: Empty nodelistinfo list" << std::endl;
1385                 return false;
1386         }
1387
1388         NodeListInfo listinfo = nri->nodelistinfo.front();
1389         nri->nodelistinfo.pop_front();
1390
1391         while (listinfo.length--) {
1392                 if (nri->nodenames.empty()) {
1393                         errorstream << "Resolver: Empty nodename list" << std::endl;
1394                         return false;
1395                 }
1396
1397                 content_t c;
1398                 std::string name = nri->nodenames.front();
1399                 nri->nodenames.pop_front();
1400
1401                 if (name.substr(0,6) != "group:") {
1402                         if (getId(name, c)) {
1403                                 result.push_back(c);
1404                         } else if (listinfo.all_required) {
1405                                 errorstream << "Resolver: Failed to resolve node name '" << name
1406                                         << "'." << std::endl;
1407                                 result.push_back(listinfo.c_fallback);
1408                                 success = false;
1409                         }
1410                 } else {
1411                         std::set<content_t> cids;
1412                         std::set<content_t>::iterator it;
1413                         getIds(name, cids);
1414                         for (it = cids.begin(); it != cids.end(); ++it)
1415                                 result.push_back(*it);
1416                 }
1417         }
1418
1419         return success;
1420 }