src/nodedef.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "nodedef.h"
  21
  22 #include "main.h" // For g_settings
  23 #include "itemdef.h"
  24 #ifndef SERVER
  25 #include "client/tile.h"
  26 #include "mesh.h"
  27 #include <IMeshManipulator.h>
  28 #endif
  29 #include "log.h"
  30 #include "settings.h"
  31 #include "nameidmapping.h"
  32 #include "util/numeric.h"
  33 #include "util/serialize.h"
  34 #include "exceptions.h"
  35 #include "debug.h"
  36 #include "gamedef.h"
  37
  38 /*
  39         NodeBox
  40 */
  41
  42 void NodeBox::reset()
  43 {
  44         type = NODEBOX_REGULAR;
  45         // default is empty
  46         fixed.clear();
  47         // default is sign/ladder-like
  48         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  49         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  50         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  51 }
  52
  53 void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
  54 {
  55         int version = protocol_version >= 21 ? 2 : 1;
  56         writeU8(os, version);
  57
  58         if (version == 1 && type == NODEBOX_LEVELED)
  59                 writeU8(os, NODEBOX_FIXED);
  60         else
  61                 writeU8(os, type);
  62
  63         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  64         {
  65                 writeU16(os, fixed.size());
  66                 for(std::vector<aabb3f>::const_iterator
  67                                 i = fixed.begin();
  68                                 i != fixed.end(); i++)
  69                 {
  70                         writeV3F1000(os, i->MinEdge);
  71                         writeV3F1000(os, i->MaxEdge);
  72                 }
  73         }
  74         else if(type == NODEBOX_WALLMOUNTED)
  75         {
  76                 writeV3F1000(os, wall_top.MinEdge);
  77                 writeV3F1000(os, wall_top.MaxEdge);
  78                 writeV3F1000(os, wall_bottom.MinEdge);
  79                 writeV3F1000(os, wall_bottom.MaxEdge);
  80                 writeV3F1000(os, wall_side.MinEdge);
  81                 writeV3F1000(os, wall_side.MaxEdge);
  82         }
  83 }
  84
  85 void NodeBox::deSerialize(std::istream &is)
  86 {
  87         int version = readU8(is);
  88         if(version < 1 || version > 2)
  89                 throw SerializationError("unsupported NodeBox version");
  90
  91         reset();
  92
  93         type = (enum NodeBoxType)readU8(is);
  94
  95         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  96         {
  97                 u16 fixed_count = readU16(is);
  98                 while(fixed_count--)
  99                 {
 100                         aabb3f box;
 101                         box.MinEdge = readV3F1000(is);
 102                         box.MaxEdge = readV3F1000(is);
 103                         fixed.push_back(box);
 104                 }
 105         }
 106         else if(type == NODEBOX_WALLMOUNTED)
 107         {
 108                 wall_top.MinEdge = readV3F1000(is);
 109                 wall_top.MaxEdge = readV3F1000(is);
 110                 wall_bottom.MinEdge = readV3F1000(is);
 111                 wall_bottom.MaxEdge = readV3F1000(is);
 112                 wall_side.MinEdge = readV3F1000(is);
 113                 wall_side.MaxEdge = readV3F1000(is);
 114         }
 115 }
 116
 117 /*
 118         TileDef
 119 */
 120
 121 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 122 {
 123         if(protocol_version >= 17)
 124                 writeU8(os, 1);
 125         else
 126                 writeU8(os, 0);
 127         os<<serializeString(name);
 128         writeU8(os, animation.type);
 129         writeU16(os, animation.aspect_w);
 130         writeU16(os, animation.aspect_h);
 131         writeF1000(os, animation.length);
 132         if(protocol_version >= 17)
 133                 writeU8(os, backface_culling);
 134 }
 135
 136 void TileDef::deSerialize(std::istream &is)
 137 {
 138         int version = readU8(is);
 139         name = deSerializeString(is);
 140         animation.type = (TileAnimationType)readU8(is);
 141         animation.aspect_w = readU16(is);
 142         animation.aspect_h = readU16(is);
 143         animation.length = readF1000(is);
 144         if(version >= 1)
 145                 backface_culling = readU8(is);
 146 }
 147
 148 /*
 149         SimpleSoundSpec serialization
 150 */
 151
 152 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 153                 std::ostream &os)
 154 {
 155         os<<serializeString(ss.name);
 156         writeF1000(os, ss.gain);
 157 }
 158 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 159 {
 160         ss.name = deSerializeString(is);
 161         ss.gain = readF1000(is);
 162 }
 163
 164 /*
 165         ContentFeatures
 166 */
 167
 168 ContentFeatures::ContentFeatures()
 169 {
 170         reset();
 171 }
 172
 173 ContentFeatures::~ContentFeatures()
 174 {
 175 }
 176
 177 void ContentFeatures::reset()
 178 {
 179         /*
 180                 Cached stuff
 181         */
 182 #ifndef SERVER
 183         solidness = 2;
 184         visual_solidness = 0;
 185         backface_culling = true;
 186 #endif
 187         has_on_construct = false;
 188         has_on_destruct = false;
 189         has_after_destruct = false;
 190         /*
 191                 Actual data
 192
 193                 NOTE: Most of this is always overridden by the default values given
 194                       in builtin.lua
 195         */
 196         name = "";
 197         groups.clear();
 198         // Unknown nodes can be dug
 199         groups["dig_immediate"] = 2;
 200         drawtype = NDT_NORMAL;
 201         mesh = "";
 202 #ifndef SERVER
 203         for(u32 i = 0; i < 24; i++)
 204                 mesh_ptr[i] = NULL;
 205 #endif
 206         visual_scale = 1.0;
 207         for(u32 i = 0; i < 6; i++)
 208                 tiledef[i] = TileDef();
 209         for(u16 j = 0; j < CF_SPECIAL_COUNT; j++)
 210                 tiledef_special[j] = TileDef();
 211         alpha = 255;
 212         post_effect_color = video::SColor(0, 0, 0, 0);
 213         param_type = CPT_NONE;
 214         param_type_2 = CPT2_NONE;
 215         is_ground_content = false;
 216         light_propagates = false;
 217         sunlight_propagates = false;
 218         walkable = true;
 219         pointable = true;
 220         diggable = true;
 221         climbable = false;
 222         buildable_to = false;
 223         rightclickable = true;
 224         leveled = 0;
 225         liquid_type = LIQUID_NONE;
 226         liquid_alternative_flowing = "";
 227         liquid_alternative_source = "";
 228         liquid_viscosity = 0;
 229         liquid_renewable = true;
 230         liquid_range = LIQUID_LEVEL_MAX+1;
 231         drowning = 0;
 232         light_source = 0;
 233         damage_per_second = 0;
 234         node_box = NodeBox();
 235         selection_box = NodeBox();
 236         collision_box = NodeBox();
 237         waving = 0;
 238         legacy_facedir_simple = false;
 239         legacy_wallmounted = false;
 240         sound_footstep = SimpleSoundSpec();
 241         sound_dig = SimpleSoundSpec("__group");
 242         sound_dug = SimpleSoundSpec();
 243 }
 244
 245 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 246 {
 247         if(protocol_version < 24){
 248                 serializeOld(os, protocol_version);
 249                 return;
 250         }
 251
 252         writeU8(os, 7); // version
 253         os<<serializeString(name);
 254         writeU16(os, groups.size());
 255         for(ItemGroupList::const_iterator
 256                         i = groups.begin(); i != groups.end(); i++){
 257                 os<<serializeString(i->first);
 258                 writeS16(os, i->second);
 259         }
 260         writeU8(os, drawtype);
 261         writeF1000(os, visual_scale);
 262         writeU8(os, 6);
 263         for(u32 i = 0; i < 6; i++)
 264                 tiledef[i].serialize(os, protocol_version);
 265         writeU8(os, CF_SPECIAL_COUNT);
 266         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++){
 267                 tiledef_special[i].serialize(os, protocol_version);
 268         }
 269         writeU8(os, alpha);
 270         writeU8(os, post_effect_color.getAlpha());
 271         writeU8(os, post_effect_color.getRed());
 272         writeU8(os, post_effect_color.getGreen());
 273         writeU8(os, post_effect_color.getBlue());
 274         writeU8(os, param_type);
 275         writeU8(os, param_type_2);
 276         writeU8(os, is_ground_content);
 277         writeU8(os, light_propagates);
 278         writeU8(os, sunlight_propagates);
 279         writeU8(os, walkable);
 280         writeU8(os, pointable);
 281         writeU8(os, diggable);
 282         writeU8(os, climbable);
 283         writeU8(os, buildable_to);
 284         os<<serializeString(""); // legacy: used to be metadata_name
 285         writeU8(os, liquid_type);
 286         os<<serializeString(liquid_alternative_flowing);
 287         os<<serializeString(liquid_alternative_source);
 288         writeU8(os, liquid_viscosity);
 289         writeU8(os, liquid_renewable);
 290         writeU8(os, light_source);
 291         writeU32(os, damage_per_second);
 292         node_box.serialize(os, protocol_version);
 293         selection_box.serialize(os, protocol_version);
 294         writeU8(os, legacy_facedir_simple);
 295         writeU8(os, legacy_wallmounted);
 296         serializeSimpleSoundSpec(sound_footstep, os);
 297         serializeSimpleSoundSpec(sound_dig, os);
 298         serializeSimpleSoundSpec(sound_dug, os);
 299         writeU8(os, rightclickable);
 300         writeU8(os, drowning);
 301         writeU8(os, leveled);
 302         writeU8(os, liquid_range);
 303         writeU8(os, waving);
 304         // Stuff below should be moved to correct place in a version that otherwise changes
 305         // the protocol version
 306         os<<serializeString(mesh);
 307         collision_box.serialize(os, protocol_version);
 308 }
 309
 310 void ContentFeatures::deSerialize(std::istream &is)
 311 {
 312         int version = readU8(is);
 313         if(version != 7){
 314                 deSerializeOld(is, version);
 315                 return;
 316         }
 317
 318         name = deSerializeString(is);
 319         groups.clear();
 320         u32 groups_size = readU16(is);
 321         for(u32 i = 0; i < groups_size; i++){
 322                 std::string name = deSerializeString(is);
 323                 int value = readS16(is);
 324                 groups[name] = value;
 325         }
 326         drawtype = (enum NodeDrawType)readU8(is);
 327         visual_scale = readF1000(is);
 328         if(readU8(is) != 6)
 329                 throw SerializationError("unsupported tile count");
 330         for(u32 i = 0; i < 6; i++)
 331                 tiledef[i].deSerialize(is);
 332         if(readU8(is) != CF_SPECIAL_COUNT)
 333                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 334         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 335                 tiledef_special[i].deSerialize(is);
 336         alpha = readU8(is);
 337         post_effect_color.setAlpha(readU8(is));
 338         post_effect_color.setRed(readU8(is));
 339         post_effect_color.setGreen(readU8(is));
 340         post_effect_color.setBlue(readU8(is));
 341         param_type = (enum ContentParamType)readU8(is);
 342         param_type_2 = (enum ContentParamType2)readU8(is);
 343         is_ground_content = readU8(is);
 344         light_propagates = readU8(is);
 345         sunlight_propagates = readU8(is);
 346         walkable = readU8(is);
 347         pointable = readU8(is);
 348         diggable = readU8(is);
 349         climbable = readU8(is);
 350         buildable_to = readU8(is);
 351         deSerializeString(is); // legacy: used to be metadata_name
 352         liquid_type = (enum LiquidType)readU8(is);
 353         liquid_alternative_flowing = deSerializeString(is);
 354         liquid_alternative_source = deSerializeString(is);
 355         liquid_viscosity = readU8(is);
 356         liquid_renewable = readU8(is);
 357         light_source = readU8(is);
 358         damage_per_second = readU32(is);
 359         node_box.deSerialize(is);
 360         selection_box.deSerialize(is);
 361         legacy_facedir_simple = readU8(is);
 362         legacy_wallmounted = readU8(is);
 363         deSerializeSimpleSoundSpec(sound_footstep, is);
 364         deSerializeSimpleSoundSpec(sound_dig, is);
 365         deSerializeSimpleSoundSpec(sound_dug, is);
 366         rightclickable = readU8(is);
 367         drowning = readU8(is);
 368         leveled = readU8(is);
 369         liquid_range = readU8(is);
 370         waving = readU8(is);
 371         // If you add anything here, insert it primarily inside the try-catch
 372         // block to not need to increase the version.
 373         try{
 374                 // Stuff below should be moved to correct place in a version that
 375                 // otherwise changes the protocol version
 376         mesh = deSerializeString(is);
 377         collision_box.deSerialize(is);
 378         }catch(SerializationError &e) {};
 379 }
 380
 381 /*
 382         CNodeDefManager
 383 */
 384
 385 class CNodeDefManager: public IWritableNodeDefManager {
 386 public:
 387         CNodeDefManager();
 388         virtual ~CNodeDefManager();
 389         void clear();
 390         virtual IWritableNodeDefManager *clone();
 391         inline virtual const ContentFeatures& get(content_t c) const;
 392         inline virtual const ContentFeatures& get(const MapNode &n) const;
 393         virtual bool getId(const std::string &name, content_t &result) const;
 394         virtual content_t getId(const std::string &name) const;
 395         virtual void getIds(const std::string &name, std::set<content_t> &result) const;
 396         virtual const ContentFeatures& get(const std::string &name) const;
 397         content_t allocateId();
 398         virtual content_t set(const std::string &name, const ContentFeatures &def);
 399         virtual content_t allocateDummy(const std::string &name);
 400         virtual void updateAliases(IItemDefManager *idef);
 401         virtual void updateTextures(IGameDef *gamedef);
 402         void serialize(std::ostream &os, u16 protocol_version);
 403         void deSerialize(std::istream &is);
 404
 405         inline virtual bool getNodeRegistrationStatus() const;
 406         inline virtual void setNodeRegistrationStatus(bool completed);
 407
 408         virtual void pendNodeResolve(NodeResolveInfo *nri);
 409         virtual void cancelNodeResolve(NodeResolver *resolver);
 410         virtual void runNodeResolverCallbacks();
 411
 412         virtual bool getIdFromResolveInfo(NodeResolveInfo *nri,
 413                 const std::string &node_alt, content_t c_fallback, content_t &result);
 414         virtual bool getIdsFromResolveInfo(NodeResolveInfo *nri,
 415                 std::vector<content_t> &result);
 416
 417 private:
 418         void addNameIdMapping(content_t i, std::string name);
 419 #ifndef SERVER
 420         void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
 421                 u32 shader_id, bool use_normal_texture, bool backface_culling,
 422                 u8 alpha, u8 material_type);
 423 #endif
 424
 425         // Features indexed by id
 426         std::vector<ContentFeatures> m_content_features;
 427
 428         // A mapping for fast converting back and forth between names and ids
 429         NameIdMapping m_name_id_mapping;
 430
 431         // Like m_name_id_mapping, but only from names to ids, and includes
 432         // item aliases too. Updated by updateAliases()
 433         // Note: Not serialized.
 434
 435         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 436
 437         // A mapping from groups to a list of content_ts (and their levels)
 438         // that belong to it.  Necessary for a direct lookup in getIds().
 439         // Note: Not serialized.
 440         std::map<std::string, GroupItems> m_group_to_items;
 441
 442         // Next possibly free id
 443         content_t m_next_id;
 444
 445         // List of node strings and node resolver callbacks to perform
 446         std::list<NodeResolveInfo *> m_pending_node_lookups;
 447
 448         // True when all nodes have been registered
 449         bool m_node_registration_complete;
 450 };
 451
 452
 453 CNodeDefManager::CNodeDefManager()
 454 {
 455         clear();
 456 }
 457
 458
 459 CNodeDefManager::~CNodeDefManager()
 460 {
 461 #ifndef SERVER
 462         for (u32 i = 0; i < m_content_features.size(); i++) {
 463                 ContentFeatures *f = &m_content_features[i];
 464                 for (u32 j = 0; j < 24; j++) {
 465                         if (f->mesh_ptr[j])
 466                                 f->mesh_ptr[j]->drop();
 467                 }
 468         }
 469 #endif
 470 }
 471
 472
 473 void CNodeDefManager::clear()
 474 {
 475         m_content_features.clear();
 476         m_name_id_mapping.clear();
 477         m_name_id_mapping_with_aliases.clear();
 478         m_group_to_items.clear();
 479         m_next_id = 0;
 480
 481         m_node_registration_complete = false;
 482         for (std::list<NodeResolveInfo *>::iterator
 483                         it = m_pending_node_lookups.begin();
 484                         it != m_pending_node_lookups.end();
 485                         ++it)
 486                 delete *it;
 487         m_pending_node_lookups.clear();
 488
 489         u32 initial_length = 0;
 490         initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 491         initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 492         initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 493         m_content_features.resize(initial_length);
 494
 495         // Set CONTENT_UNKNOWN
 496         {
 497                 ContentFeatures f;
 498                 f.name = "unknown";
 499                 // Insert directly into containers
 500                 content_t c = CONTENT_UNKNOWN;
 501                 m_content_features[c] = f;
 502                 addNameIdMapping(c, f.name);
 503         }
 504
 505         // Set CONTENT_AIR
 506         {
 507                 ContentFeatures f;
 508                 f.name                = "air";
 509                 f.drawtype            = NDT_AIRLIKE;
 510                 f.param_type          = CPT_LIGHT;
 511                 f.light_propagates    = true;
 512                 f.sunlight_propagates = true;
 513                 f.walkable            = false;
 514                 f.pointable           = false;
 515                 f.diggable            = false;
 516                 f.buildable_to        = true;
 517                 f.is_ground_content   = true;
 518                 // Insert directly into containers
 519                 content_t c = CONTENT_AIR;
 520                 m_content_features[c] = f;
 521                 addNameIdMapping(c, f.name);
 522         }
 523
 524         // Set CONTENT_IGNORE
 525         {
 526                 ContentFeatures f;
 527                 f.name                = "ignore";
 528                 f.drawtype            = NDT_AIRLIKE;
 529                 f.param_type          = CPT_NONE;
 530                 f.light_propagates    = false;
 531                 f.sunlight_propagates = false;
 532                 f.walkable            = false;
 533                 f.pointable           = false;
 534                 f.diggable            = false;
 535                 f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 536                 f.is_ground_content   = true;
 537                 // Insert directly into containers
 538                 content_t c = CONTENT_IGNORE;
 539                 m_content_features[c] = f;
 540                 addNameIdMapping(c, f.name);
 541         }
 542 }
 543
 544
 545 IWritableNodeDefManager *CNodeDefManager::clone()
 546 {
 547         CNodeDefManager *mgr = new CNodeDefManager();
 548         *mgr = *this;
 549         return mgr;
 550 }
 551
 552
 553 inline const ContentFeatures& CNodeDefManager::get(content_t c) const
 554 {
 555         return c < m_content_features.size()
 556                         ? m_content_features[c] : m_content_features[CONTENT_UNKNOWN];
 557 }
 558
 559
 560 inline const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
 561 {
 562         return get(n.getContent());
 563 }
 564
 565
 566 bool CNodeDefManager::getId(const std::string &name, content_t &result) const
 567 {
 568         std::map<std::string, content_t>::const_iterator
 569                 i = m_name_id_mapping_with_aliases.find(name);
 570         if(i == m_name_id_mapping_with_aliases.end())
 571                 return false;
 572         result = i->second;
 573         return true;
 574 }
 575
 576
 577 content_t CNodeDefManager::getId(const std::string &name) const
 578 {
 579         content_t id = CONTENT_IGNORE;
 580         getId(name, id);
 581         return id;
 582 }
 583
 584
 585 void CNodeDefManager::getIds(const std::string &name,
 586                 std::set<content_t> &result) const
 587 {
 588         //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 589         if (name.substr(0,6) != "group:") {
 590                 content_t id = CONTENT_IGNORE;
 591                 if(getId(name, id))
 592                         result.insert(id);
 593                 return;
 594         }
 595         std::string group = name.substr(6);
 596
 597         std::map<std::string, GroupItems>::const_iterator
 598                 i = m_group_to_items.find(group);
 599         if (i == m_group_to_items.end())
 600                 return;
 601
 602         const GroupItems &items = i->second;
 603         for (GroupItems::const_iterator j = items.begin();
 604                 j != items.end(); ++j) {
 605                 if ((*j).second != 0)
 606                         result.insert((*j).first);
 607         }
 608         //printf("getIds: %dus\n", t.stop());
 609 }
 610
 611
 612 const ContentFeatures& CNodeDefManager::get(const std::string &name) const
 613 {
 614         content_t id = CONTENT_UNKNOWN;
 615         getId(name, id);
 616         return get(id);
 617 }
 618
 619
 620 // returns CONTENT_IGNORE if no free ID found
 621 content_t CNodeDefManager::allocateId()
 622 {
 623         for (content_t id = m_next_id;
 624                         id >= m_next_id; // overflow?
 625                         ++id) {
 626                 while (id >= m_content_features.size()) {
 627                         m_content_features.push_back(ContentFeatures());
 628                 }
 629                 const ContentFeatures &f = m_content_features[id];
 630                 if (f.name == "") {
 631                         m_next_id = id + 1;
 632                         return id;
 633                 }
 634         }
 635         // If we arrive here, an overflow occurred in id.
 636         // That means no ID was found
 637         return CONTENT_IGNORE;
 638 }
 639
 640
 641 // IWritableNodeDefManager
 642 content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
 643 {
 644         assert(name != "");
 645         assert(name == def.name);
 646
 647         // Don't allow redefining ignore (but allow air and unknown)
 648         if (name == "ignore") {
 649                 infostream << "NodeDefManager: WARNING: Ignoring "
 650                         "CONTENT_IGNORE redefinition"<<std::endl;
 651                 return CONTENT_IGNORE;
 652         }
 653
 654         content_t id = CONTENT_IGNORE;
 655         if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 656                 // Get new id
 657                 id = allocateId();
 658                 if (id == CONTENT_IGNORE) {
 659                         infostream << "NodeDefManager: WARNING: Absolute "
 660                                 "limit reached" << std::endl;
 661                         return CONTENT_IGNORE;
 662                 }
 663                 assert(id != CONTENT_IGNORE);
 664                 addNameIdMapping(id, name);
 665         }
 666         m_content_features[id] = def;
 667         verbosestream << "NodeDefManager: registering content id \"" << id
 668                 << "\": name=\"" << def.name << "\""<<std::endl;
 669
 670         // Add this content to the list of all groups it belongs to
 671         // FIXME: This should remove a node from groups it no longer
 672         // belongs to when a node is re-registered
 673         for (ItemGroupList::const_iterator i = def.groups.begin();
 674                 i != def.groups.end(); ++i) {
 675                 std::string group_name = i->first;
 676
 677                 std::map<std::string, GroupItems>::iterator
 678                         j = m_group_to_items.find(group_name);
 679                 if (j == m_group_to_items.end()) {
 680                         m_group_to_items[group_name].push_back(
 681                                         std::make_pair(id, i->second));
 682                 } else {
 683                         GroupItems &items = j->second;
 684                         items.push_back(std::make_pair(id, i->second));
 685                 }
 686         }
 687         return id;
 688 }
 689
 690
 691 content_t CNodeDefManager::allocateDummy(const std::string &name)
 692 {
 693         assert(name != "");
 694         ContentFeatures f;
 695         f.name = name;
 696         return set(name, f);
 697 }
 698
 699
 700 void CNodeDefManager::updateAliases(IItemDefManager *idef)
 701 {
 702         std::set<std::string> all = idef->getAll();
 703         m_name_id_mapping_with_aliases.clear();
 704         for (std::set<std::string>::iterator
 705                         i = all.begin(); i != all.end(); i++) {
 706                 std::string name = *i;
 707                 std::string convert_to = idef->getAlias(name);
 708                 content_t id;
 709                 if (m_name_id_mapping.getId(convert_to, id)) {
 710                         m_name_id_mapping_with_aliases.insert(
 711                                         std::make_pair(name, id));
 712                 }
 713         }
 714 }
 715
 716
 717 void CNodeDefManager::updateTextures(IGameDef *gamedef)
 718 {
 719 #ifndef SERVER
 720         infostream << "CNodeDefManager::updateTextures(): Updating "
 721                 "textures in node definitions" << std::endl;
 722
 723         ITextureSource *tsrc = gamedef->tsrc();
 724         IShaderSource *shdsrc = gamedef->getShaderSource();
 725         scene::ISceneManager* smgr = gamedef->getSceneManager();
 726         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 727
 728         bool new_style_water           = g_settings->getBool("new_style_water");
 729         bool new_style_leaves          = g_settings->getBool("new_style_leaves");
 730         bool connected_glass           = g_settings->getBool("connected_glass");
 731         bool opaque_water              = g_settings->getBool("opaque_water");
 732         bool enable_shaders            = g_settings->getBool("enable_shaders");
 733         bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 734         bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 735         bool enable_mesh_cache         = g_settings->getBool("enable_mesh_cache");
 736
 737         bool use_normal_texture = enable_shaders &&
 738                 (enable_bumpmapping || enable_parallax_occlusion);
 739
 740         for (u32 i = 0; i < m_content_features.size(); i++) {
 741                 ContentFeatures *f = &m_content_features[i];
 742
 743                 // Figure out the actual tiles to use
 744                 TileDef tiledef[6];
 745                 for (u32 j = 0; j < 6; j++) {
 746                         tiledef[j] = f->tiledef[j];
 747                         if (tiledef[j].name == "")
 748                                 tiledef[j].name = "unknown_node.png";
 749                 }
 750
 751                 bool is_liquid = false;
 752                 bool is_water_surface = false;
 753
 754                 u8 material_type = (f->alpha == 255) ?
 755                         TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 756
 757                 switch (f->drawtype) {
 758                 default:
 759                 case NDT_NORMAL:
 760                         f->solidness = 2;
 761                         break;
 762                 case NDT_AIRLIKE:
 763                         f->solidness = 0;
 764                         break;
 765                 case NDT_LIQUID:
 766                         assert(f->liquid_type == LIQUID_SOURCE);
 767                         if (opaque_water)
 768                                 f->alpha = 255;
 769                         if (new_style_water){
 770                                 f->solidness = 0;
 771                         } else {
 772                                 f->solidness = 1;
 773                                 f->backface_culling = false;
 774                         }
 775                         is_liquid = true;
 776                         break;
 777                 case NDT_FLOWINGLIQUID:
 778                         assert(f->liquid_type == LIQUID_FLOWING);
 779                         f->solidness = 0;
 780                         if (opaque_water)
 781                                 f->alpha = 255;
 782                         is_liquid = true;
 783                         break;
 784                 case NDT_GLASSLIKE:
 785                         f->solidness = 0;
 786                         f->visual_solidness = 1;
 787                         break;
 788                 case NDT_GLASSLIKE_FRAMED:
 789                         f->solidness = 0;
 790                         f->visual_solidness = 1;
 791                         break;
 792                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 793                         f->solidness = 0;
 794                         f->visual_solidness = 1;
 795                         f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 796                         break;
 797                 case NDT_ALLFACES:
 798                         f->solidness = 0;
 799                         f->visual_solidness = 1;
 800                         break;
 801                 case NDT_ALLFACES_OPTIONAL:
 802                         if (new_style_leaves) {
 803                                 f->drawtype = NDT_ALLFACES;
 804                                 f->solidness = 0;
 805                                 f->visual_solidness = 1;
 806                         } else {
 807                                 f->drawtype = NDT_NORMAL;
 808                                 f->solidness = 2;
 809                                 for (u32 i = 0; i < 6; i++)
 810                                         tiledef[i].name += std::string("^[noalpha");
 811                         }
 812                         if (f->waving == 1)
 813                                 material_type = TILE_MATERIAL_WAVING_LEAVES;
 814                         break;
 815                 case NDT_PLANTLIKE:
 816                         f->solidness = 0;
 817                         f->backface_culling = false;
 818                         if (f->waving == 1)
 819                                 material_type = TILE_MATERIAL_WAVING_PLANTS;
 820                         break;
 821                 case NDT_FIRELIKE:
 822                         f->backface_culling = false;
 823                         f->solidness = 0;
 824                         break;
 825                 case NDT_MESH:
 826                         f->solidness = 0;
 827                         f->backface_culling = false;
 828                         break;
 829                 case NDT_TORCHLIKE:
 830                 case NDT_SIGNLIKE:
 831                 case NDT_FENCELIKE:
 832                 case NDT_RAILLIKE:
 833                 case NDT_NODEBOX:
 834                         f->solidness = 0;
 835                         break;
 836                 }
 837
 838                 if (is_liquid) {
 839                         material_type = (f->alpha == 255) ?
 840                                 TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 841                         if (f->name == "default:water_source")
 842                                 is_water_surface = true;
 843                 }
 844
 845                 u32 tile_shader[6];
 846                 for (u16 j = 0; j < 6; j++) {
 847                         tile_shader[j] = shdsrc->getShader("nodes_shader",
 848                                 material_type, f->drawtype);
 849                 }
 850
 851                 if (is_water_surface) {
 852                         tile_shader[0] = shdsrc->getShader("water_surface_shader",
 853                                 material_type, f->drawtype);
 854                 }
 855
 856                 // Tiles (fill in f->tiles[])
 857                 for (u16 j = 0; j < 6; j++) {
 858                         fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
 859                                 use_normal_texture, f->backface_culling, f->alpha, material_type);
 860                 }
 861
 862                 // Special tiles (fill in f->special_tiles[])
 863                 for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
 864                         fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
 865                                 tile_shader[j], use_normal_texture,
 866                                 f->tiledef_special[j].backface_culling, f->alpha, material_type);
 867                 }
 868
 869                 if ((f->drawtype == NDT_MESH) && (f->mesh != "")) {
 870                         // Meshnode drawtype
 871                         // Read the mesh and apply scale
 872                         f->mesh_ptr[0] = gamedef->getMesh(f->mesh);
 873                         if (f->mesh_ptr[0]){
 874                                 v3f scale = v3f(1.0, 1.0, 1.0) * BS * f->visual_scale;
 875                                 scaleMesh(f->mesh_ptr[0], scale);
 876                                 recalculateBoundingBox(f->mesh_ptr[0]);
 877                                 meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 878                         }
 879                 } else if ((f->drawtype == NDT_NODEBOX) &&
 880                                 ((f->node_box.type == NODEBOX_REGULAR) ||
 881                                 (f->node_box.type == NODEBOX_FIXED)) &&
 882                                 (!f->node_box.fixed.empty())) {
 883                         //Convert regular nodebox nodes to meshnodes
 884                         //Change the drawtype and apply scale
 885                         f->drawtype = NDT_MESH;
 886                         f->mesh_ptr[0] = convertNodeboxNodeToMesh(f);
 887                         v3f scale = v3f(1.0, 1.0, 1.0) * f->visual_scale;
 888                         scaleMesh(f->mesh_ptr[0], scale);
 889                         recalculateBoundingBox(f->mesh_ptr[0]);
 890                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 891                 }
 892
 893                 //Cache 6dfacedir and wallmounted rotated clones of meshes
 894                 if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_FACEDIR)) {
 895                         for (u16 j = 1; j < 24; j++) {
 896                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 897                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], j);
 898                                 recalculateBoundingBox(f->mesh_ptr[j]);
 899                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 900                         }
 901                 } else if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_WALLMOUNTED)) {
 902                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
 903                         for (u16 j = 1; j < 6; j++) {
 904                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 905                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], wm_to_6d[j]);
 906                                 recalculateBoundingBox(f->mesh_ptr[j]);
 907                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 908                         }
 909                         rotateMeshBy6dFacedir(f->mesh_ptr[0], wm_to_6d[0]);
 910                         recalculateBoundingBox(f->mesh_ptr[0]);
 911                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 912                 }
 913         }
 914 #endif
 915 }
 916
 917
 918 #ifndef SERVER
 919 void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
 920                 TileDef *tiledef, u32 shader_id, bool use_normal_texture,
 921                 bool backface_culling, u8 alpha, u8 material_type)
 922 {
 923         tile->shader_id     = shader_id;
 924         tile->texture       = tsrc->getTexture(tiledef->name, &tile->texture_id);
 925         tile->alpha         = alpha;
 926         tile->material_type = material_type;
 927
 928         // Normal texture
 929         if (use_normal_texture)
 930                 tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
 931
 932         // Material flags
 933         tile->material_flags = 0;
 934         if (backface_culling)
 935                 tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 936         if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
 937                 tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 938
 939         // Animation parameters
 940         int frame_count = 1;
 941         if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
 942                 // Get texture size to determine frame count by aspect ratio
 943                 v2u32 size = tile->texture->getOriginalSize();
 944                 int frame_height = (float)size.X /
 945                                 (float)tiledef->animation.aspect_w *
 946                                 (float)tiledef->animation.aspect_h;
 947                 frame_count = size.Y / frame_height;
 948                 int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
 949                 tile->animation_frame_count = frame_count;
 950                 tile->animation_frame_length_ms = frame_length_ms;
 951         }
 952
 953         if (frame_count == 1) {
 954                 tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 955         } else {
 956                 std::ostringstream os(std::ios::binary);
 957                 tile->frames.resize(frame_count);
 958
 959                 for (int i = 0; i < frame_count; i++) {
 960
 961                         FrameSpec frame;
 962
 963                         os.str("");
 964                         os << tiledef->name << "^[verticalframe:"
 965                                 << frame_count << ":" << i;
 966
 967                         frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
 968                         if (tile->normal_texture)
 969                                 frame.normal_texture = tsrc->getNormalTexture(os.str());
 970                         tile->frames[i] = frame;
 971                 }
 972         }
 973 }
 974 #endif
 975
 976
 977 void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version)
 978 {
 979         writeU8(os, 1); // version
 980         u16 count = 0;
 981         std::ostringstream os2(std::ios::binary);
 982         for (u32 i = 0; i < m_content_features.size(); i++) {
 983                 if (i == CONTENT_IGNORE || i == CONTENT_AIR
 984                                 || i == CONTENT_UNKNOWN)
 985                         continue;
 986                 ContentFeatures *f = &m_content_features[i];
 987                 if (f->name == "")
 988                         continue;
 989                 writeU16(os2, i);
 990                 // Wrap it in a string to allow different lengths without
 991                 // strict version incompatibilities
 992                 std::ostringstream wrapper_os(std::ios::binary);
 993                 f->serialize(wrapper_os, protocol_version);
 994                 os2<<serializeString(wrapper_os.str());
 995
 996                 assert(count + 1 > count); // must not overflow
 997                 count++;
 998         }
 999         writeU16(os, count);
1000         os << serializeLongString(os2.str());
1001 }
1002
1003
1004 void CNodeDefManager::deSerialize(std::istream &is)
1005 {
1006         clear();
1007         int version = readU8(is);
1008         if (version != 1)
1009                 throw SerializationError("unsupported NodeDefinitionManager version");
1010         u16 count = readU16(is);
1011         std::istringstream is2(deSerializeLongString(is), std::ios::binary);
1012         ContentFeatures f;
1013         for (u16 n = 0; n < count; n++) {
1014                 u16 i = readU16(is2);
1015
1016                 // Read it from the string wrapper
1017                 std::string wrapper = deSerializeString(is2);
1018                 std::istringstream wrapper_is(wrapper, std::ios::binary);
1019                 f.deSerialize(wrapper_is);
1020
1021                 // Check error conditions
1022                 if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
1023                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1024                                 "not changing builtin node " << i << std::endl;
1025                         continue;
1026                 }
1027                 if (f.name == "") {
1028                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1029                                 "received empty name" << std::endl;
1030                         continue;
1031                 }
1032
1033                 // Ignore aliases
1034                 u16 existing_id;
1035                 if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
1036                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1037                                 "already defined with different ID: " << f.name << std::endl;
1038                         continue;
1039                 }
1040
1041                 // All is ok, add node definition with the requested ID
1042                 if (i >= m_content_features.size())
1043                         m_content_features.resize((u32)(i) + 1);
1044                 m_content_features[i] = f;
1045                 addNameIdMapping(i, f.name);
1046                 verbosestream << "deserialized " << f.name << std::endl;
1047         }
1048 }
1049
1050
1051 void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
1052 {
1053         m_name_id_mapping.set(i, name);
1054         m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
1055 }
1056
1057
1058 IWritableNodeDefManager *createNodeDefManager()
1059 {
1060         return new CNodeDefManager();
1061 }
1062
1063
1064 //// Serialization of old ContentFeatures formats
1065 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
1066 {
1067         if (protocol_version == 13)
1068         {
1069                 writeU8(os, 5); // version
1070                 os<<serializeString(name);
1071                 writeU16(os, groups.size());
1072                 for (ItemGroupList::const_iterator
1073                                 i = groups.begin(); i != groups.end(); i++) {
1074                         os<<serializeString(i->first);
1075                         writeS16(os, i->second);
1076                 }
1077                 writeU8(os, drawtype);
1078                 writeF1000(os, visual_scale);
1079                 writeU8(os, 6);
1080                 for (u32 i = 0; i < 6; i++)
1081                         tiledef[i].serialize(os, protocol_version);
1082                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1083                 writeU8(os, 2);
1084                 for (u32 i = 0; i < 2; i++)
1085                         tiledef_special[i].serialize(os, protocol_version);
1086                 writeU8(os, alpha);
1087                 writeU8(os, post_effect_color.getAlpha());
1088                 writeU8(os, post_effect_color.getRed());
1089                 writeU8(os, post_effect_color.getGreen());
1090                 writeU8(os, post_effect_color.getBlue());
1091                 writeU8(os, param_type);
1092                 writeU8(os, param_type_2);
1093                 writeU8(os, is_ground_content);
1094                 writeU8(os, light_propagates);
1095                 writeU8(os, sunlight_propagates);
1096                 writeU8(os, walkable);
1097                 writeU8(os, pointable);
1098                 writeU8(os, diggable);
1099                 writeU8(os, climbable);
1100                 writeU8(os, buildable_to);
1101                 os<<serializeString(""); // legacy: used to be metadata_name
1102                 writeU8(os, liquid_type);
1103                 os<<serializeString(liquid_alternative_flowing);
1104                 os<<serializeString(liquid_alternative_source);
1105                 writeU8(os, liquid_viscosity);
1106                 writeU8(os, light_source);
1107                 writeU32(os, damage_per_second);
1108                 node_box.serialize(os, protocol_version);
1109                 selection_box.serialize(os, protocol_version);
1110                 writeU8(os, legacy_facedir_simple);
1111                 writeU8(os, legacy_wallmounted);
1112                 serializeSimpleSoundSpec(sound_footstep, os);
1113                 serializeSimpleSoundSpec(sound_dig, os);
1114                 serializeSimpleSoundSpec(sound_dug, os);
1115         }
1116         else if (protocol_version > 13 && protocol_version < 24) {
1117                 writeU8(os, 6); // version
1118                 os<<serializeString(name);
1119                 writeU16(os, groups.size());
1120                 for (ItemGroupList::const_iterator
1121                         i = groups.begin(); i != groups.end(); i++) {
1122                                 os<<serializeString(i->first);
1123                                 writeS16(os, i->second);
1124                 }
1125                 writeU8(os, drawtype);
1126                 writeF1000(os, visual_scale);
1127                 writeU8(os, 6);
1128                 for (u32 i = 0; i < 6; i++)
1129                         tiledef[i].serialize(os, protocol_version);
1130                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1131                 writeU8(os, 2);
1132                 for (u32 i = 0; i < 2; i++)
1133                         tiledef_special[i].serialize(os, protocol_version);
1134                 writeU8(os, alpha);
1135                 writeU8(os, post_effect_color.getAlpha());
1136                 writeU8(os, post_effect_color.getRed());
1137                 writeU8(os, post_effect_color.getGreen());
1138                 writeU8(os, post_effect_color.getBlue());
1139                 writeU8(os, param_type);
1140                 writeU8(os, param_type_2);
1141                 writeU8(os, is_ground_content);
1142                 writeU8(os, light_propagates);
1143                 writeU8(os, sunlight_propagates);
1144                 writeU8(os, walkable);
1145                 writeU8(os, pointable);
1146                 writeU8(os, diggable);
1147                 writeU8(os, climbable);
1148                 writeU8(os, buildable_to);
1149                 os<<serializeString(""); // legacy: used to be metadata_name
1150                 writeU8(os, liquid_type);
1151                 os<<serializeString(liquid_alternative_flowing);
1152                 os<<serializeString(liquid_alternative_source);
1153                 writeU8(os, liquid_viscosity);
1154                 writeU8(os, liquid_renewable);
1155                 writeU8(os, light_source);
1156                 writeU32(os, damage_per_second);
1157                 node_box.serialize(os, protocol_version);
1158                 selection_box.serialize(os, protocol_version);
1159                 writeU8(os, legacy_facedir_simple);
1160                 writeU8(os, legacy_wallmounted);
1161                 serializeSimpleSoundSpec(sound_footstep, os);
1162                 serializeSimpleSoundSpec(sound_dig, os);
1163                 serializeSimpleSoundSpec(sound_dug, os);
1164                 writeU8(os, rightclickable);
1165                 writeU8(os, drowning);
1166                 writeU8(os, leveled);
1167                 writeU8(os, liquid_range);
1168         } else
1169                 throw SerializationError("ContentFeatures::serialize(): "
1170                         "Unsupported version requested");
1171 }
1172
1173
1174 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1175 {
1176         if (version == 5) // In PROTOCOL_VERSION 13
1177         {
1178                 name = deSerializeString(is);
1179                 groups.clear();
1180                 u32 groups_size = readU16(is);
1181                 for(u32 i=0; i<groups_size; i++){
1182                         std::string name = deSerializeString(is);
1183                         int value = readS16(is);
1184                         groups[name] = value;
1185                 }
1186                 drawtype = (enum NodeDrawType)readU8(is);
1187                 visual_scale = readF1000(is);
1188                 if (readU8(is) != 6)
1189                         throw SerializationError("unsupported tile count");
1190                 for (u32 i = 0; i < 6; i++)
1191                         tiledef[i].deSerialize(is);
1192                 if (readU8(is) != CF_SPECIAL_COUNT)
1193                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1194                 for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
1195                         tiledef_special[i].deSerialize(is);
1196                 alpha = readU8(is);
1197                 post_effect_color.setAlpha(readU8(is));
1198                 post_effect_color.setRed(readU8(is));
1199                 post_effect_color.setGreen(readU8(is));
1200                 post_effect_color.setBlue(readU8(is));
1201                 param_type = (enum ContentParamType)readU8(is);
1202                 param_type_2 = (enum ContentParamType2)readU8(is);
1203                 is_ground_content = readU8(is);
1204                 light_propagates = readU8(is);
1205                 sunlight_propagates = readU8(is);
1206                 walkable = readU8(is);
1207                 pointable = readU8(is);
1208                 diggable = readU8(is);
1209                 climbable = readU8(is);
1210                 buildable_to = readU8(is);
1211                 deSerializeString(is); // legacy: used to be metadata_name
1212                 liquid_type = (enum LiquidType)readU8(is);
1213                 liquid_alternative_flowing = deSerializeString(is);
1214                 liquid_alternative_source = deSerializeString(is);
1215                 liquid_viscosity = readU8(is);
1216                 light_source = readU8(is);
1217                 damage_per_second = readU32(is);
1218                 node_box.deSerialize(is);
1219                 selection_box.deSerialize(is);
1220                 legacy_facedir_simple = readU8(is);
1221                 legacy_wallmounted = readU8(is);
1222                 deSerializeSimpleSoundSpec(sound_footstep, is);
1223                 deSerializeSimpleSoundSpec(sound_dig, is);
1224                 deSerializeSimpleSoundSpec(sound_dug, is);
1225         } else if (version == 6) {
1226                 name = deSerializeString(is);
1227                 groups.clear();
1228                 u32 groups_size = readU16(is);
1229                 for (u32 i = 0; i < groups_size; i++) {
1230                         std::string name = deSerializeString(is);
1231                         int     value = readS16(is);
1232                         groups[name] = value;
1233                 }
1234                 drawtype = (enum NodeDrawType)readU8(is);
1235                 visual_scale = readF1000(is);
1236                 if (readU8(is) != 6)
1237                         throw SerializationError("unsupported tile count");
1238                 for (u32 i = 0; i < 6; i++)
1239                         tiledef[i].deSerialize(is);
1240                 // CF_SPECIAL_COUNT in version 6 = 2
1241                 if (readU8(is) != 2)
1242                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1243                 for (u32 i = 0; i < 2; i++)
1244                         tiledef_special[i].deSerialize(is);
1245                 alpha = readU8(is);
1246                 post_effect_color.setAlpha(readU8(is));
1247                 post_effect_color.setRed(readU8(is));
1248                 post_effect_color.setGreen(readU8(is));
1249                 post_effect_color.setBlue(readU8(is));
1250                 param_type = (enum ContentParamType)readU8(is);
1251                 param_type_2 = (enum ContentParamType2)readU8(is);
1252                 is_ground_content = readU8(is);
1253                 light_propagates = readU8(is);
1254                 sunlight_propagates = readU8(is);
1255                 walkable = readU8(is);
1256                 pointable = readU8(is);
1257                 diggable = readU8(is);
1258                 climbable = readU8(is);
1259                 buildable_to = readU8(is);
1260                 deSerializeString(is); // legacy: used to be metadata_name
1261                 liquid_type = (enum LiquidType)readU8(is);
1262                 liquid_alternative_flowing = deSerializeString(is);
1263                 liquid_alternative_source = deSerializeString(is);
1264                 liquid_viscosity = readU8(is);
1265                 liquid_renewable = readU8(is);
1266                 light_source = readU8(is);
1267                 damage_per_second = readU32(is);
1268                 node_box.deSerialize(is);
1269                 selection_box.deSerialize(is);
1270                 legacy_facedir_simple = readU8(is);
1271                 legacy_wallmounted = readU8(is);
1272                 deSerializeSimpleSoundSpec(sound_footstep, is);
1273                 deSerializeSimpleSoundSpec(sound_dig, is);
1274                 deSerializeSimpleSoundSpec(sound_dug, is);
1275                 rightclickable = readU8(is);
1276                 drowning = readU8(is);
1277                 leveled = readU8(is);
1278                 liquid_range = readU8(is);
1279         } else {
1280                 throw SerializationError("unsupported ContentFeatures version");
1281         }
1282 }
1283
1284
1285 inline bool CNodeDefManager::getNodeRegistrationStatus() const
1286 {
1287         return m_node_registration_complete;
1288 }
1289
1290
1291 inline void CNodeDefManager::setNodeRegistrationStatus(bool completed)
1292 {
1293         m_node_registration_complete = completed;
1294 }
1295
1296
1297 void CNodeDefManager::pendNodeResolve(NodeResolveInfo *nri)
1298 {
1299         nri->resolver->m_ndef = this;
1300         if (m_node_registration_complete) {
1301                 nri->resolver->resolveNodeNames(nri);
1302                 nri->resolver->m_lookup_done = true;
1303                 delete nri;
1304         } else {
1305                 m_pending_node_lookups.push_back(nri);
1306         }
1307 }
1308
1309
1310 void CNodeDefManager::cancelNodeResolve(NodeResolver *resolver)
1311 {
1312         for (std::list<NodeResolveInfo *>::iterator
1313                         it = m_pending_node_lookups.begin();
1314                         it != m_pending_node_lookups.end();
1315                         ++it) {
1316                 NodeResolveInfo *nri = *it;
1317                 if (resolver == nri->resolver) {
1318                         it = m_pending_node_lookups.erase(it);
1319                         delete nri;
1320                 }
1321         }
1322 }
1323
1324
1325 void CNodeDefManager::runNodeResolverCallbacks()
1326 {
1327         while (!m_pending_node_lookups.empty()) {
1328                 NodeResolveInfo *nri = m_pending_node_lookups.front();
1329                 m_pending_node_lookups.pop_front();
1330                 nri->resolver->resolveNodeNames(nri);
1331                 nri->resolver->m_lookup_done = true;
1332                 delete nri;
1333         }
1334 }
1335
1336
1337 bool CNodeDefManager::getIdFromResolveInfo(NodeResolveInfo *nri,
1338         const std::string &node_alt, content_t c_fallback, content_t &result)
1339 {
1340         if (nri->nodenames.empty()) {
1341                 result = c_fallback;
1342                 errorstream << "Resolver empty nodename list" << std::endl;
1343                 return false;
1344         }
1345
1346         content_t c;
1347         std::string name = nri->nodenames.front();
1348         nri->nodenames.pop_front();
1349
1350         bool success = getId(name, c);
1351         if (!success && node_alt != "") {
1352                 name = node_alt;
1353                 success = getId(name, c);
1354         }
1355
1356         if (!success) {
1357                 errorstream << "Resolver: Failed to resolve node name '" << name
1358                         << "'." << std::endl;
1359                 c = c_fallback;
1360         }
1361
1362         result = c;
1363         return success;
1364 }
1365
1366
1367 bool CNodeDefManager::getIdsFromResolveInfo(NodeResolveInfo *nri,
1368         std::vector<content_t> &result)
1369 {
1370         bool success = true;
1371
1372         if (nri->nodelistinfo.empty()) {
1373                 errorstream << "Resolver: Empty nodelistinfo list" << std::endl;
1374                 return false;
1375         }
1376
1377         NodeListInfo listinfo = nri->nodelistinfo.front();
1378         nri->nodelistinfo.pop_front();
1379
1380         while (listinfo.length--) {
1381                 if (nri->nodenames.empty()) {
1382                         errorstream << "Resolver: Empty nodename list" << std::endl;
1383                         return false;
1384                 }
1385
1386                 content_t c;
1387                 std::string name = nri->nodenames.front();
1388                 nri->nodenames.pop_front();
1389
1390                 if (name.substr(0,6) != "group:") {
1391                         if (getId(name, c)) {
1392                                 result.push_back(c);
1393                         } else if (listinfo.all_required) {
1394                                 errorstream << "Resolver: Failed to resolve node name '" << name
1395                                         << "'." << std::endl;
1396                                 result.push_back(listinfo.c_fallback);
1397                                 success = false;
1398                         }
1399                 } else {
1400                         std::set<content_t> cids;
1401                         std::set<content_t>::iterator it;
1402                         getIds(name, cids);
1403                         for (it = cids.begin(); it != cids.end(); ++it)
1404                                 result.push_back(*it);
1405                 }
1406         }
1407
1408         return success;
1409 }