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