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