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 #include <fstream> // Used in applyTextureOverrides()
  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 >= 26)
 124                 writeU8(os, 2);
 125         else if (protocol_version >= 17)
 126                 writeU8(os, 1);
 127         else
 128                 writeU8(os, 0);
 129         os<<serializeString(name);
 130         writeU8(os, animation.type);
 131         writeU16(os, animation.aspect_w);
 132         writeU16(os, animation.aspect_h);
 133         writeF1000(os, animation.length);
 134         if (protocol_version >= 17)
 135                 writeU8(os, backface_culling);
 136         if (protocol_version >= 26) {
 137                 writeU8(os, tileable_horizontal);
 138                 writeU8(os, tileable_vertical);
 139         }
 140 }
 141
 142 void TileDef::deSerialize(std::istream &is)
 143 {
 144         int version = readU8(is);
 145         name = deSerializeString(is);
 146         animation.type = (TileAnimationType)readU8(is);
 147         animation.aspect_w = readU16(is);
 148         animation.aspect_h = readU16(is);
 149         animation.length = readF1000(is);
 150         if (version >= 1)
 151                 backface_culling = readU8(is);
 152         if (version >= 2) {
 153                 tileable_horizontal = readU8(is);
 154                 tileable_vertical = readU8(is);
 155         }
 156 }
 157
 158
 159 /*
 160         SimpleSoundSpec serialization
 161 */
 162
 163 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 164                 std::ostream &os)
 165 {
 166         os<<serializeString(ss.name);
 167         writeF1000(os, ss.gain);
 168 }
 169 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 170 {
 171         ss.name = deSerializeString(is);
 172         ss.gain = readF1000(is);
 173 }
 174
 175 /*
 176         ContentFeatures
 177 */
 178
 179 ContentFeatures::ContentFeatures()
 180 {
 181         reset();
 182 }
 183
 184 ContentFeatures::~ContentFeatures()
 185 {
 186 }
 187
 188 void ContentFeatures::reset()
 189 {
 190         /*
 191                 Cached stuff
 192         */
 193 #ifndef SERVER
 194         solidness = 2;
 195         visual_solidness = 0;
 196         backface_culling = true;
 197
 198 #endif
 199         has_on_construct = false;
 200         has_on_destruct = false;
 201         has_after_destruct = false;
 202         /*
 203                 Actual data
 204
 205                 NOTE: Most of this is always overridden by the default values given
 206                       in builtin.lua
 207         */
 208         name = "";
 209         groups.clear();
 210         // Unknown nodes can be dug
 211         groups["dig_immediate"] = 2;
 212         drawtype = NDT_NORMAL;
 213         mesh = "";
 214 #ifndef SERVER
 215         for(u32 i = 0; i < 24; i++)
 216                 mesh_ptr[i] = NULL;
 217         minimap_color = video::SColor(0, 0, 0, 0);
 218 #endif
 219         visual_scale = 1.0;
 220         for(u32 i = 0; i < 6; i++)
 221                 tiledef[i] = TileDef();
 222         for(u16 j = 0; j < CF_SPECIAL_COUNT; j++)
 223                 tiledef_special[j] = TileDef();
 224         alpha = 255;
 225         post_effect_color = video::SColor(0, 0, 0, 0);
 226         param_type = CPT_NONE;
 227         param_type_2 = CPT2_NONE;
 228         is_ground_content = false;
 229         light_propagates = false;
 230         sunlight_propagates = false;
 231         walkable = true;
 232         pointable = true;
 233         diggable = true;
 234         climbable = false;
 235         buildable_to = false;
 236         floodable = false;
 237         rightclickable = true;
 238         leveled = 0;
 239         liquid_type = LIQUID_NONE;
 240         liquid_alternative_flowing = "";
 241         liquid_alternative_source = "";
 242         liquid_viscosity = 0;
 243         liquid_renewable = true;
 244         liquid_range = LIQUID_LEVEL_MAX+1;
 245         drowning = 0;
 246         light_source = 0;
 247         damage_per_second = 0;
 248         node_box = NodeBox();
 249         selection_box = NodeBox();
 250         collision_box = NodeBox();
 251         waving = 0;
 252         legacy_facedir_simple = false;
 253         legacy_wallmounted = false;
 254         sound_footstep = SimpleSoundSpec();
 255         sound_dig = SimpleSoundSpec("__group");
 256         sound_dug = SimpleSoundSpec();
 257 }
 258
 259 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 260 {
 261         if(protocol_version < 24){
 262                 serializeOld(os, protocol_version);
 263                 return;
 264         }
 265
 266         writeU8(os, 7); // version
 267         os<<serializeString(name);
 268         writeU16(os, groups.size());
 269         for(ItemGroupList::const_iterator
 270                         i = groups.begin(); i != groups.end(); ++i){
 271                 os<<serializeString(i->first);
 272                 writeS16(os, i->second);
 273         }
 274         writeU8(os, drawtype);
 275         writeF1000(os, visual_scale);
 276         writeU8(os, 6);
 277         for(u32 i = 0; i < 6; i++)
 278                 tiledef[i].serialize(os, protocol_version);
 279         writeU8(os, CF_SPECIAL_COUNT);
 280         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++){
 281                 tiledef_special[i].serialize(os, protocol_version);
 282         }
 283         writeU8(os, alpha);
 284         writeU8(os, post_effect_color.getAlpha());
 285         writeU8(os, post_effect_color.getRed());
 286         writeU8(os, post_effect_color.getGreen());
 287         writeU8(os, post_effect_color.getBlue());
 288         writeU8(os, param_type);
 289         writeU8(os, param_type_2);
 290         writeU8(os, is_ground_content);
 291         writeU8(os, light_propagates);
 292         writeU8(os, sunlight_propagates);
 293         writeU8(os, walkable);
 294         writeU8(os, pointable);
 295         writeU8(os, diggable);
 296         writeU8(os, climbable);
 297         writeU8(os, buildable_to);
 298         os<<serializeString(""); // legacy: used to be metadata_name
 299         writeU8(os, liquid_type);
 300         os<<serializeString(liquid_alternative_flowing);
 301         os<<serializeString(liquid_alternative_source);
 302         writeU8(os, liquid_viscosity);
 303         writeU8(os, liquid_renewable);
 304         writeU8(os, light_source);
 305         writeU32(os, damage_per_second);
 306         node_box.serialize(os, protocol_version);
 307         selection_box.serialize(os, protocol_version);
 308         writeU8(os, legacy_facedir_simple);
 309         writeU8(os, legacy_wallmounted);
 310         serializeSimpleSoundSpec(sound_footstep, os);
 311         serializeSimpleSoundSpec(sound_dig, os);
 312         serializeSimpleSoundSpec(sound_dug, os);
 313         writeU8(os, rightclickable);
 314         writeU8(os, drowning);
 315         writeU8(os, leveled);
 316         writeU8(os, liquid_range);
 317         writeU8(os, waving);
 318         // Stuff below should be moved to correct place in a version that otherwise changes
 319         // the protocol version
 320         os<<serializeString(mesh);
 321         collision_box.serialize(os, protocol_version);
 322         writeU8(os, floodable);
 323 }
 324
 325 void ContentFeatures::deSerialize(std::istream &is)
 326 {
 327         int version = readU8(is);
 328         if(version != 7){
 329                 deSerializeOld(is, version);
 330                 return;
 331         }
 332
 333         name = deSerializeString(is);
 334         groups.clear();
 335         u32 groups_size = readU16(is);
 336         for(u32 i = 0; i < groups_size; i++){
 337                 std::string name = deSerializeString(is);
 338                 int value = readS16(is);
 339                 groups[name] = value;
 340         }
 341         drawtype = (enum NodeDrawType)readU8(is);
 342         visual_scale = readF1000(is);
 343         if(readU8(is) != 6)
 344                 throw SerializationError("unsupported tile count");
 345         for(u32 i = 0; i < 6; i++)
 346                 tiledef[i].deSerialize(is);
 347         if(readU8(is) != CF_SPECIAL_COUNT)
 348                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 349         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 350                 tiledef_special[i].deSerialize(is);
 351         alpha = readU8(is);
 352         post_effect_color.setAlpha(readU8(is));
 353         post_effect_color.setRed(readU8(is));
 354         post_effect_color.setGreen(readU8(is));
 355         post_effect_color.setBlue(readU8(is));
 356         param_type = (enum ContentParamType)readU8(is);
 357         param_type_2 = (enum ContentParamType2)readU8(is);
 358         is_ground_content = readU8(is);
 359         light_propagates = readU8(is);
 360         sunlight_propagates = readU8(is);
 361         walkable = readU8(is);
 362         pointable = readU8(is);
 363         diggable = readU8(is);
 364         climbable = readU8(is);
 365         buildable_to = readU8(is);
 366         deSerializeString(is); // legacy: used to be metadata_name
 367         liquid_type = (enum LiquidType)readU8(is);
 368         liquid_alternative_flowing = deSerializeString(is);
 369         liquid_alternative_source = deSerializeString(is);
 370         liquid_viscosity = readU8(is);
 371         liquid_renewable = readU8(is);
 372         light_source = readU8(is);
 373         damage_per_second = readU32(is);
 374         node_box.deSerialize(is);
 375         selection_box.deSerialize(is);
 376         legacy_facedir_simple = readU8(is);
 377         legacy_wallmounted = readU8(is);
 378         deSerializeSimpleSoundSpec(sound_footstep, is);
 379         deSerializeSimpleSoundSpec(sound_dig, is);
 380         deSerializeSimpleSoundSpec(sound_dug, is);
 381         rightclickable = readU8(is);
 382         drowning = readU8(is);
 383         leveled = readU8(is);
 384         liquid_range = readU8(is);
 385         waving = readU8(is);
 386         // If you add anything here, insert it primarily inside the try-catch
 387         // block to not need to increase the version.
 388         try{
 389                 // Stuff below should be moved to correct place in a version that
 390                 // otherwise changes the protocol version
 391         mesh = deSerializeString(is);
 392         collision_box.deSerialize(is);
 393         floodable = readU8(is);
 394         }catch(SerializationError &e) {};
 395 }
 396
 397 /*
 398         CNodeDefManager
 399 */
 400
 401 class CNodeDefManager: public IWritableNodeDefManager {
 402 public:
 403         CNodeDefManager();
 404         virtual ~CNodeDefManager();
 405         void clear();
 406         virtual IWritableNodeDefManager *clone();
 407         inline virtual const ContentFeatures& get(content_t c) const;
 408         inline virtual const ContentFeatures& get(const MapNode &n) const;
 409         virtual bool getId(const std::string &name, content_t &result) const;
 410         virtual content_t getId(const std::string &name) const;
 411         virtual void getIds(const std::string &name, std::set<content_t> &result) const;
 412         virtual const ContentFeatures& get(const std::string &name) const;
 413         content_t allocateId();
 414         virtual content_t set(const std::string &name, const ContentFeatures &def);
 415         virtual content_t allocateDummy(const std::string &name);
 416         virtual void updateAliases(IItemDefManager *idef);
 417         virtual void applyTextureOverrides(const std::string &override_filepath);
 418         virtual void updateTextures(IGameDef *gamedef,
 419                 void (*progress_cbk)(void *progress_args, u32 progress, u32 max_progress),
 420                 void *progress_cbk_args);
 421         void serialize(std::ostream &os, u16 protocol_version) const;
 422         void deSerialize(std::istream &is);
 423
 424         inline virtual bool getNodeRegistrationStatus() const;
 425         inline virtual void setNodeRegistrationStatus(bool completed);
 426
 427         virtual void pendNodeResolve(NodeResolver *nr);
 428         virtual bool cancelNodeResolveCallback(NodeResolver *nr);
 429         virtual void runNodeResolveCallbacks();
 430         virtual void resetNodeResolveState();
 431
 432 private:
 433         void addNameIdMapping(content_t i, std::string name);
 434 #ifndef SERVER
 435         void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
 436                 u32 shader_id, bool use_normal_texture, bool backface_culling,
 437                 u8 alpha, u8 material_type);
 438 #endif
 439
 440         // Features indexed by id
 441         std::vector<ContentFeatures> m_content_features;
 442
 443         // A mapping for fast converting back and forth between names and ids
 444         NameIdMapping m_name_id_mapping;
 445
 446         // Like m_name_id_mapping, but only from names to ids, and includes
 447         // item aliases too. Updated by updateAliases()
 448         // Note: Not serialized.
 449
 450         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 451
 452         // A mapping from groups to a list of content_ts (and their levels)
 453         // that belong to it.  Necessary for a direct lookup in getIds().
 454         // Note: Not serialized.
 455         std::map<std::string, GroupItems> m_group_to_items;
 456
 457         // Next possibly free id
 458         content_t m_next_id;
 459
 460         // NodeResolvers to callback once node registration has ended
 461         std::vector<NodeResolver *> m_pending_resolve_callbacks;
 462
 463         // True when all nodes have been registered
 464         bool m_node_registration_complete;
 465 };
 466
 467
 468 CNodeDefManager::CNodeDefManager()
 469 {
 470         clear();
 471 }
 472
 473
 474 CNodeDefManager::~CNodeDefManager()
 475 {
 476 #ifndef SERVER
 477         for (u32 i = 0; i < m_content_features.size(); i++) {
 478                 ContentFeatures *f = &m_content_features[i];
 479                 for (u32 j = 0; j < 24; j++) {
 480                         if (f->mesh_ptr[j])
 481                                 f->mesh_ptr[j]->drop();
 482                 }
 483         }
 484 #endif
 485 }
 486
 487
 488 void CNodeDefManager::clear()
 489 {
 490         m_content_features.clear();
 491         m_name_id_mapping.clear();
 492         m_name_id_mapping_with_aliases.clear();
 493         m_group_to_items.clear();
 494         m_next_id = 0;
 495
 496         resetNodeResolveState();
 497
 498         u32 initial_length = 0;
 499         initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 500         initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 501         initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 502         m_content_features.resize(initial_length);
 503
 504         // Set CONTENT_UNKNOWN
 505         {
 506                 ContentFeatures f;
 507                 f.name = "unknown";
 508                 // Insert directly into containers
 509                 content_t c = CONTENT_UNKNOWN;
 510                 m_content_features[c] = f;
 511                 addNameIdMapping(c, f.name);
 512         }
 513
 514         // Set CONTENT_AIR
 515         {
 516                 ContentFeatures f;
 517                 f.name                = "air";
 518                 f.drawtype            = NDT_AIRLIKE;
 519                 f.param_type          = CPT_LIGHT;
 520                 f.light_propagates    = true;
 521                 f.sunlight_propagates = true;
 522                 f.walkable            = false;
 523                 f.pointable           = false;
 524                 f.diggable            = false;
 525                 f.buildable_to        = true;
 526                 f.floodable           = true;
 527                 f.is_ground_content   = true;
 528                 // Insert directly into containers
 529                 content_t c = CONTENT_AIR;
 530                 m_content_features[c] = f;
 531                 addNameIdMapping(c, f.name);
 532         }
 533
 534         // Set CONTENT_IGNORE
 535         {
 536                 ContentFeatures f;
 537                 f.name                = "ignore";
 538                 f.drawtype            = NDT_AIRLIKE;
 539                 f.param_type          = CPT_NONE;
 540                 f.light_propagates    = false;
 541                 f.sunlight_propagates = false;
 542                 f.walkable            = false;
 543                 f.pointable           = false;
 544                 f.diggable            = false;
 545                 f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 546                 f.is_ground_content   = true;
 547                 // Insert directly into containers
 548                 content_t c = CONTENT_IGNORE;
 549                 m_content_features[c] = f;
 550                 addNameIdMapping(c, f.name);
 551         }
 552 }
 553
 554
 555 IWritableNodeDefManager *CNodeDefManager::clone()
 556 {
 557         CNodeDefManager *mgr = new CNodeDefManager();
 558         *mgr = *this;
 559         return mgr;
 560 }
 561
 562
 563 inline const ContentFeatures& CNodeDefManager::get(content_t c) const
 564 {
 565         return c < m_content_features.size()
 566                         ? m_content_features[c] : m_content_features[CONTENT_UNKNOWN];
 567 }
 568
 569
 570 inline const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
 571 {
 572         return get(n.getContent());
 573 }
 574
 575
 576 bool CNodeDefManager::getId(const std::string &name, content_t &result) const
 577 {
 578         std::map<std::string, content_t>::const_iterator
 579                 i = m_name_id_mapping_with_aliases.find(name);
 580         if(i == m_name_id_mapping_with_aliases.end())
 581                 return false;
 582         result = i->second;
 583         return true;
 584 }
 585
 586
 587 content_t CNodeDefManager::getId(const std::string &name) const
 588 {
 589         content_t id = CONTENT_IGNORE;
 590         getId(name, id);
 591         return id;
 592 }
 593
 594
 595 void CNodeDefManager::getIds(const std::string &name,
 596                 std::set<content_t> &result) const
 597 {
 598         //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 599         if (name.substr(0,6) != "group:") {
 600                 content_t id = CONTENT_IGNORE;
 601                 if(getId(name, id))
 602                         result.insert(id);
 603                 return;
 604         }
 605         std::string group = name.substr(6);
 606
 607         std::map<std::string, GroupItems>::const_iterator
 608                 i = m_group_to_items.find(group);
 609         if (i == m_group_to_items.end())
 610                 return;
 611
 612         const GroupItems &items = i->second;
 613         for (GroupItems::const_iterator j = items.begin();
 614                 j != items.end(); ++j) {
 615                 if ((*j).second != 0)
 616                         result.insert((*j).first);
 617         }
 618         //printf("getIds: %dus\n", t.stop());
 619 }
 620
 621
 622 const ContentFeatures& CNodeDefManager::get(const std::string &name) const
 623 {
 624         content_t id = CONTENT_UNKNOWN;
 625         getId(name, id);
 626         return get(id);
 627 }
 628
 629
 630 // returns CONTENT_IGNORE if no free ID found
 631 content_t CNodeDefManager::allocateId()
 632 {
 633         for (content_t id = m_next_id;
 634                         id >= m_next_id; // overflow?
 635                         ++id) {
 636                 while (id >= m_content_features.size()) {
 637                         m_content_features.push_back(ContentFeatures());
 638                 }
 639                 const ContentFeatures &f = m_content_features[id];
 640                 if (f.name == "") {
 641                         m_next_id = id + 1;
 642                         return id;
 643                 }
 644         }
 645         // If we arrive here, an overflow occurred in id.
 646         // That means no ID was found
 647         return CONTENT_IGNORE;
 648 }
 649
 650
 651 // IWritableNodeDefManager
 652 content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
 653 {
 654         // Pre-conditions
 655         assert(name != "");
 656         assert(name == def.name);
 657
 658         // Don't allow redefining ignore (but allow air and unknown)
 659         if (name == "ignore") {
 660                 warningstream << "NodeDefManager: Ignoring "
 661                         "CONTENT_IGNORE redefinition"<<std::endl;
 662                 return CONTENT_IGNORE;
 663         }
 664
 665         content_t id = CONTENT_IGNORE;
 666         if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 667                 // Get new id
 668                 id = allocateId();
 669                 if (id == CONTENT_IGNORE) {
 670                         warningstream << "NodeDefManager: Absolute "
 671                                 "limit reached" << std::endl;
 672                         return CONTENT_IGNORE;
 673                 }
 674                 assert(id != CONTENT_IGNORE);
 675                 addNameIdMapping(id, name);
 676         }
 677         m_content_features[id] = def;
 678         verbosestream << "NodeDefManager: registering content id \"" << id
 679                 << "\": name=\"" << def.name << "\""<<std::endl;
 680
 681         // Add this content to the list of all groups it belongs to
 682         // FIXME: This should remove a node from groups it no longer
 683         // belongs to when a node is re-registered
 684         for (ItemGroupList::const_iterator i = def.groups.begin();
 685                 i != def.groups.end(); ++i) {
 686                 std::string group_name = i->first;
 687
 688                 std::map<std::string, GroupItems>::iterator
 689                         j = m_group_to_items.find(group_name);
 690                 if (j == m_group_to_items.end()) {
 691                         m_group_to_items[group_name].push_back(
 692                                 std::make_pair(id, i->second));
 693                 } else {
 694                         GroupItems &items = j->second;
 695                         items.push_back(std::make_pair(id, i->second));
 696                 }
 697         }
 698         return id;
 699 }
 700
 701
 702 content_t CNodeDefManager::allocateDummy(const std::string &name)
 703 {
 704         assert(name != "");     // Pre-condition
 705         ContentFeatures f;
 706         f.name = name;
 707         return set(name, f);
 708 }
 709
 710
 711 void CNodeDefManager::updateAliases(IItemDefManager *idef)
 712 {
 713         std::set<std::string> all = idef->getAll();
 714         m_name_id_mapping_with_aliases.clear();
 715         for (std::set<std::string>::iterator
 716                         i = all.begin(); i != all.end(); ++i) {
 717                 std::string name = *i;
 718                 std::string convert_to = idef->getAlias(name);
 719                 content_t id;
 720                 if (m_name_id_mapping.getId(convert_to, id)) {
 721                         m_name_id_mapping_with_aliases.insert(
 722                                 std::make_pair(name, id));
 723                 }
 724         }
 725 }
 726
 727 void CNodeDefManager::applyTextureOverrides(const std::string &override_filepath)
 728 {
 729         infostream << "CNodeDefManager::applyTextureOverrides(): Applying "
 730                 "overrides to textures from " << override_filepath << std::endl;
 731
 732         std::ifstream infile(override_filepath.c_str());
 733         std::string line;
 734         int line_c = 0;
 735         while (std::getline(infile, line)) {
 736                 line_c++;
 737                 if (trim(line) == "")
 738                         continue;
 739                 std::vector<std::string> splitted = str_split(line, ' ');
 740                 if (splitted.size() != 3) {
 741                         errorstream << override_filepath
 742                                 << ":" << line_c << " Could not apply texture override \""
 743                                 << line << "\": Syntax error" << std::endl;
 744                         continue;
 745                 }
 746
 747                 content_t id;
 748                 if (!getId(splitted[0], id)) {
 749                         errorstream << override_filepath
 750                                 << ":" << line_c << " Could not apply texture override \""
 751                                 << line << "\": Unknown node \""
 752                                 << splitted[0] << "\"" << std::endl;
 753                         continue;
 754                 }
 755
 756                 ContentFeatures &nodedef = m_content_features[id];
 757
 758                 if (splitted[1] == "top")
 759                         nodedef.tiledef[0].name = splitted[2];
 760                 else if (splitted[1] == "bottom")
 761                         nodedef.tiledef[1].name = splitted[2];
 762                 else if (splitted[1] == "right")
 763                         nodedef.tiledef[2].name = splitted[2];
 764                 else if (splitted[1] == "left")
 765                         nodedef.tiledef[3].name = splitted[2];
 766                 else if (splitted[1] == "back")
 767                         nodedef.tiledef[4].name = splitted[2];
 768                 else if (splitted[1] == "front")
 769                         nodedef.tiledef[5].name = splitted[2];
 770                 else if (splitted[1] == "all" || splitted[1] == "*")
 771                         for (int i = 0; i < 6; i++)
 772                                 nodedef.tiledef[i].name = splitted[2];
 773                 else if (splitted[1] == "sides")
 774                         for (int i = 2; i < 6; i++)
 775                                 nodedef.tiledef[i].name = splitted[2];
 776                 else {
 777                         errorstream << override_filepath
 778                                 << ":" << line_c << " Could not apply texture override \""
 779                                 << line << "\": Unknown node side \""
 780                                 << splitted[1] << "\"" << std::endl;
 781                         continue;
 782                 }
 783         }
 784 }
 785
 786 void CNodeDefManager::updateTextures(IGameDef *gamedef,
 787         void (*progress_callback)(void *progress_args, u32 progress, u32 max_progress),
 788         void *progress_callback_args)
 789 {
 790 #ifndef SERVER
 791         infostream << "CNodeDefManager::updateTextures(): Updating "
 792                 "textures in node definitions" << std::endl;
 793         ITextureSource *tsrc = gamedef->tsrc();
 794         IShaderSource *shdsrc = gamedef->getShaderSource();
 795         scene::ISceneManager* smgr = gamedef->getSceneManager();
 796         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 797
 798         bool new_style_water           = g_settings->getBool("new_style_water");
 799         bool connected_glass           = g_settings->getBool("connected_glass");
 800         bool opaque_water              = g_settings->getBool("opaque_water");
 801         bool enable_shaders            = g_settings->getBool("enable_shaders");
 802         bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 803         bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 804         bool enable_mesh_cache         = g_settings->getBool("enable_mesh_cache");
 805         bool enable_minimap            = g_settings->getBool("enable_minimap");
 806         std::string leaves_style       = g_settings->get("leaves_style");
 807
 808         bool use_normal_texture = enable_shaders &&
 809                 (enable_bumpmapping || enable_parallax_occlusion);
 810
 811         u32 size = m_content_features.size();
 812
 813         for (u32 i = 0; i < size; i++) {
 814                 ContentFeatures *f = &m_content_features[i];
 815
 816                 // minimap pixel color - the average color of a texture
 817                 if (enable_minimap && f->tiledef[0].name != "")
 818                         f->minimap_color = tsrc->getTextureAverageColor(f->tiledef[0].name);
 819
 820                 // Figure out the actual tiles to use
 821                 TileDef tiledef[6];
 822                 for (u32 j = 0; j < 6; j++) {
 823                         tiledef[j] = f->tiledef[j];
 824                         if (tiledef[j].name == "")
 825                                 tiledef[j].name = "unknown_node.png";
 826                 }
 827
 828                 bool is_liquid = false;
 829                 bool is_water_surface = false;
 830
 831                 u8 material_type = (f->alpha == 255) ?
 832                         TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 833
 834                 switch (f->drawtype) {
 835                 default:
 836                 case NDT_NORMAL:
 837                         f->solidness = 2;
 838                         break;
 839                 case NDT_AIRLIKE:
 840                         f->solidness = 0;
 841                         break;
 842                 case NDT_LIQUID:
 843                         assert(f->liquid_type == LIQUID_SOURCE);
 844                         if (opaque_water)
 845                                 f->alpha = 255;
 846                         if (new_style_water){
 847                                 f->solidness = 0;
 848                         } else {
 849                                 f->solidness = 1;
 850                                 f->backface_culling = false;
 851                         }
 852                         is_liquid = true;
 853                         break;
 854                 case NDT_FLOWINGLIQUID:
 855                         assert(f->liquid_type == LIQUID_FLOWING);
 856                         f->solidness = 0;
 857                         if (opaque_water)
 858                                 f->alpha = 255;
 859                         is_liquid = true;
 860                         break;
 861                 case NDT_GLASSLIKE:
 862                         f->solidness = 0;
 863                         f->visual_solidness = 1;
 864                         break;
 865                 case NDT_GLASSLIKE_FRAMED:
 866                         f->solidness = 0;
 867                         f->visual_solidness = 1;
 868                         break;
 869                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 870                         f->solidness = 0;
 871                         f->visual_solidness = 1;
 872                         f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 873                         break;
 874                 case NDT_ALLFACES:
 875                         f->solidness = 0;
 876                         f->visual_solidness = 1;
 877                         break;
 878                 case NDT_ALLFACES_OPTIONAL:
 879                         if (leaves_style == "fancy") {
 880                                 f->drawtype = NDT_ALLFACES;
 881                                 f->solidness = 0;
 882                                 f->visual_solidness = 1;
 883                         } else if (leaves_style == "simple") {
 884                                 for (u32 j = 0; j < 6; j++) {
 885                                         if (f->tiledef_special[j].name != "")
 886                                                 tiledef[j].name = f->tiledef_special[j].name;
 887                                 }
 888                                 f->drawtype = NDT_GLASSLIKE;
 889                                 f->solidness = 0;
 890                                 f->visual_solidness = 1;
 891                         } else {
 892                                 f->drawtype = NDT_NORMAL;
 893                                 f->solidness = 2;
 894                                 for (u32 i = 0; i < 6; i++)
 895                                         tiledef[i].name += std::string("^[noalpha");
 896                         }
 897                         if (f->waving == 1)
 898                                 material_type = TILE_MATERIAL_WAVING_LEAVES;
 899                         break;
 900                 case NDT_PLANTLIKE:
 901                         f->solidness = 0;
 902                         f->backface_culling = false;
 903                         if (f->waving == 1)
 904                                 material_type = TILE_MATERIAL_WAVING_PLANTS;
 905                         break;
 906                 case NDT_FIRELIKE:
 907                         f->backface_culling = false;
 908                         f->solidness = 0;
 909                         break;
 910                 case NDT_MESH:
 911                         f->solidness = 0;
 912                         f->backface_culling = false;
 913                         break;
 914                 case NDT_TORCHLIKE:
 915                 case NDT_SIGNLIKE:
 916                 case NDT_FENCELIKE:
 917                 case NDT_RAILLIKE:
 918                 case NDT_NODEBOX:
 919                         f->solidness = 0;
 920                         break;
 921                 }
 922
 923                 if (is_liquid) {
 924                         material_type = (f->alpha == 255) ?
 925                                 TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 926                         if (f->name == "default:water_source")
 927                                 is_water_surface = true;
 928                 }
 929
 930                 u32 tile_shader[6];
 931                 for (u16 j = 0; j < 6; j++) {
 932                         tile_shader[j] = shdsrc->getShader("nodes_shader",
 933                                 material_type, f->drawtype);
 934                 }
 935
 936                 if (is_water_surface) {
 937                         tile_shader[0] = shdsrc->getShader("water_surface_shader",
 938                                 material_type, f->drawtype);
 939                 }
 940
 941                 // Tiles (fill in f->tiles[])
 942                 for (u16 j = 0; j < 6; j++) {
 943                         fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
 944                                 use_normal_texture, f->backface_culling, f->alpha, material_type);
 945                 }
 946
 947                 // Special tiles (fill in f->special_tiles[])
 948                 for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
 949                         fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
 950                                 tile_shader[j], use_normal_texture,
 951                                 f->tiledef_special[j].backface_culling, f->alpha, material_type);
 952                 }
 953
 954                 if ((f->drawtype == NDT_MESH) && (f->mesh != "")) {
 955                         // Meshnode drawtype
 956                         // Read the mesh and apply scale
 957                         f->mesh_ptr[0] = gamedef->getMesh(f->mesh);
 958                         if (f->mesh_ptr[0]){
 959                                 v3f scale = v3f(1.0, 1.0, 1.0) * BS * f->visual_scale;
 960                                 scaleMesh(f->mesh_ptr[0], scale);
 961                                 recalculateBoundingBox(f->mesh_ptr[0]);
 962                                 meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 963                         }
 964                 } else if ((f->drawtype == NDT_NODEBOX) &&
 965                                 ((f->node_box.type == NODEBOX_REGULAR) ||
 966                                 (f->node_box.type == NODEBOX_FIXED)) &&
 967                                 (!f->node_box.fixed.empty())) {
 968                         //Convert regular nodebox nodes to meshnodes
 969                         //Change the drawtype and apply scale
 970                         f->drawtype = NDT_MESH;
 971                         f->mesh_ptr[0] = convertNodeboxNodeToMesh(f);
 972                         v3f scale = v3f(1.0, 1.0, 1.0) * f->visual_scale;
 973                         scaleMesh(f->mesh_ptr[0], scale);
 974                         recalculateBoundingBox(f->mesh_ptr[0]);
 975                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 976                 }
 977
 978                 //Cache 6dfacedir and wallmounted rotated clones of meshes
 979                 if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_FACEDIR)) {
 980                         for (u16 j = 1; j < 24; j++) {
 981                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 982                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], j);
 983                                 recalculateBoundingBox(f->mesh_ptr[j]);
 984                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 985                         }
 986                 } else if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_WALLMOUNTED)) {
 987                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
 988                         for (u16 j = 1; j < 6; j++) {
 989                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 990                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], wm_to_6d[j]);
 991                                 recalculateBoundingBox(f->mesh_ptr[j]);
 992                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 993                         }
 994                         rotateMeshBy6dFacedir(f->mesh_ptr[0], wm_to_6d[0]);
 995                         recalculateBoundingBox(f->mesh_ptr[0]);
 996                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 997                 }
 998
 999                 progress_callback(progress_callback_args, i, size);
1000         }
1001 #endif
1002 }
1003
1004
1005 #ifndef SERVER
1006 void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
1007                 TileDef *tiledef, u32 shader_id, bool use_normal_texture,
1008                 bool backface_culling, u8 alpha, u8 material_type)
1009 {
1010         tile->shader_id     = shader_id;
1011         tile->texture       = tsrc->getTextureForMesh(tiledef->name, &tile->texture_id);
1012         tile->alpha         = alpha;
1013         tile->material_type = material_type;
1014
1015         // Normal texture and shader flags texture
1016         if (use_normal_texture) {
1017                 tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
1018         }
1019         tile->flags_texture = tsrc->getShaderFlagsTexture(tile->normal_texture ? true : false);
1020
1021         // Material flags
1022         tile->material_flags = 0;
1023         if (backface_culling)
1024                 tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
1025         if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
1026                 tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
1027         if (tiledef->tileable_horizontal)
1028                 tile->material_flags |= MATERIAL_FLAG_TILEABLE_HORIZONTAL;
1029         if (tiledef->tileable_vertical)
1030                 tile->material_flags |= MATERIAL_FLAG_TILEABLE_VERTICAL;
1031
1032         // Animation parameters
1033         int frame_count = 1;
1034         if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
1035                 // Get texture size to determine frame count by aspect ratio
1036                 v2u32 size = tile->texture->getOriginalSize();
1037                 int frame_height = (float)size.X /
1038                                 (float)tiledef->animation.aspect_w *
1039                                 (float)tiledef->animation.aspect_h;
1040                 frame_count = size.Y / frame_height;
1041                 int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
1042                 tile->animation_frame_count = frame_count;
1043                 tile->animation_frame_length_ms = frame_length_ms;
1044         }
1045
1046         if (frame_count == 1) {
1047                 tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
1048         } else {
1049                 std::ostringstream os(std::ios::binary);
1050                 tile->frames.resize(frame_count);
1051
1052                 for (int i = 0; i < frame_count; i++) {
1053
1054                         FrameSpec frame;
1055
1056                         os.str("");
1057                         os << tiledef->name << "^[verticalframe:"
1058                                 << frame_count << ":" << i;
1059
1060                         frame.texture = tsrc->getTextureForMesh(os.str(), &frame.texture_id);
1061                         if (tile->normal_texture)
1062                                 frame.normal_texture = tsrc->getNormalTexture(os.str());
1063                         frame.flags_texture = tile->flags_texture;
1064                         tile->frames[i] = frame;
1065                 }
1066         }
1067 }
1068 #endif
1069
1070
1071 void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version) const
1072 {
1073         writeU8(os, 1); // version
1074         u16 count = 0;
1075         std::ostringstream os2(std::ios::binary);
1076         for (u32 i = 0; i < m_content_features.size(); i++) {
1077                 if (i == CONTENT_IGNORE || i == CONTENT_AIR
1078                                 || i == CONTENT_UNKNOWN)
1079                         continue;
1080                 const ContentFeatures *f = &m_content_features[i];
1081                 if (f->name == "")
1082                         continue;
1083                 writeU16(os2, i);
1084                 // Wrap it in a string to allow different lengths without
1085                 // strict version incompatibilities
1086                 std::ostringstream wrapper_os(std::ios::binary);
1087                 f->serialize(wrapper_os, protocol_version);
1088                 os2<<serializeString(wrapper_os.str());
1089
1090                 // must not overflow
1091                 u16 next = count + 1;
1092                 FATAL_ERROR_IF(next < count, "Overflow");
1093                 count++;
1094         }
1095         writeU16(os, count);
1096         os << serializeLongString(os2.str());
1097 }
1098
1099
1100 void CNodeDefManager::deSerialize(std::istream &is)
1101 {
1102         clear();
1103         int version = readU8(is);
1104         if (version != 1)
1105                 throw SerializationError("unsupported NodeDefinitionManager version");
1106         u16 count = readU16(is);
1107         std::istringstream is2(deSerializeLongString(is), std::ios::binary);
1108         ContentFeatures f;
1109         for (u16 n = 0; n < count; n++) {
1110                 u16 i = readU16(is2);
1111
1112                 // Read it from the string wrapper
1113                 std::string wrapper = deSerializeString(is2);
1114                 std::istringstream wrapper_is(wrapper, std::ios::binary);
1115                 f.deSerialize(wrapper_is);
1116
1117                 // Check error conditions
1118                 if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
1119                         warningstream << "NodeDefManager::deSerialize(): "
1120                                 "not changing builtin node " << i << std::endl;
1121                         continue;
1122                 }
1123                 if (f.name == "") {
1124                         warningstream << "NodeDefManager::deSerialize(): "
1125                                 "received empty name" << std::endl;
1126                         continue;
1127                 }
1128
1129                 // Ignore aliases
1130                 u16 existing_id;
1131                 if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
1132                         warningstream << "NodeDefManager::deSerialize(): "
1133                                 "already defined with different ID: " << f.name << std::endl;
1134                         continue;
1135                 }
1136
1137                 // All is ok, add node definition with the requested ID
1138                 if (i >= m_content_features.size())
1139                         m_content_features.resize((u32)(i) + 1);
1140                 m_content_features[i] = f;
1141                 addNameIdMapping(i, f.name);
1142                 verbosestream << "deserialized " << f.name << std::endl;
1143         }
1144 }
1145
1146
1147 void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
1148 {
1149         m_name_id_mapping.set(i, name);
1150         m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
1151 }
1152
1153
1154 IWritableNodeDefManager *createNodeDefManager()
1155 {
1156         return new CNodeDefManager();
1157 }
1158
1159
1160 //// Serialization of old ContentFeatures formats
1161 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
1162 {
1163         if (protocol_version == 13)
1164         {
1165                 writeU8(os, 5); // version
1166                 os<<serializeString(name);
1167                 writeU16(os, groups.size());
1168                 for (ItemGroupList::const_iterator
1169                                 i = groups.begin(); i != groups.end(); ++i) {
1170                         os<<serializeString(i->first);
1171                         writeS16(os, i->second);
1172                 }
1173                 writeU8(os, drawtype);
1174                 writeF1000(os, visual_scale);
1175                 writeU8(os, 6);
1176                 for (u32 i = 0; i < 6; i++)
1177                         tiledef[i].serialize(os, protocol_version);
1178                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1179                 writeU8(os, 2);
1180                 for (u32 i = 0; i < 2; i++)
1181                         tiledef_special[i].serialize(os, protocol_version);
1182                 writeU8(os, alpha);
1183                 writeU8(os, post_effect_color.getAlpha());
1184                 writeU8(os, post_effect_color.getRed());
1185                 writeU8(os, post_effect_color.getGreen());
1186                 writeU8(os, post_effect_color.getBlue());
1187                 writeU8(os, param_type);
1188                 writeU8(os, param_type_2);
1189                 writeU8(os, is_ground_content);
1190                 writeU8(os, light_propagates);
1191                 writeU8(os, sunlight_propagates);
1192                 writeU8(os, walkable);
1193                 writeU8(os, pointable);
1194                 writeU8(os, diggable);
1195                 writeU8(os, climbable);
1196                 writeU8(os, buildable_to);
1197                 os<<serializeString(""); // legacy: used to be metadata_name
1198                 writeU8(os, liquid_type);
1199                 os<<serializeString(liquid_alternative_flowing);
1200                 os<<serializeString(liquid_alternative_source);
1201                 writeU8(os, liquid_viscosity);
1202                 writeU8(os, light_source);
1203                 writeU32(os, damage_per_second);
1204                 node_box.serialize(os, protocol_version);
1205                 selection_box.serialize(os, protocol_version);
1206                 writeU8(os, legacy_facedir_simple);
1207                 writeU8(os, legacy_wallmounted);
1208                 serializeSimpleSoundSpec(sound_footstep, os);
1209                 serializeSimpleSoundSpec(sound_dig, os);
1210                 serializeSimpleSoundSpec(sound_dug, os);
1211         }
1212         else if (protocol_version > 13 && protocol_version < 24) {
1213                 writeU8(os, 6); // version
1214                 os<<serializeString(name);
1215                 writeU16(os, groups.size());
1216                 for (ItemGroupList::const_iterator
1217                         i = groups.begin(); i != groups.end(); ++i) {
1218                                 os<<serializeString(i->first);
1219                                 writeS16(os, i->second);
1220                 }
1221                 writeU8(os, drawtype);
1222                 writeF1000(os, visual_scale);
1223                 writeU8(os, 6);
1224                 for (u32 i = 0; i < 6; i++)
1225                         tiledef[i].serialize(os, protocol_version);
1226                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1227                 writeU8(os, 2);
1228                 for (u32 i = 0; i < 2; i++)
1229                         tiledef_special[i].serialize(os, protocol_version);
1230                 writeU8(os, alpha);
1231                 writeU8(os, post_effect_color.getAlpha());
1232                 writeU8(os, post_effect_color.getRed());
1233                 writeU8(os, post_effect_color.getGreen());
1234                 writeU8(os, post_effect_color.getBlue());
1235                 writeU8(os, param_type);
1236                 writeU8(os, param_type_2);
1237                 writeU8(os, is_ground_content);
1238                 writeU8(os, light_propagates);
1239                 writeU8(os, sunlight_propagates);
1240                 writeU8(os, walkable);
1241                 writeU8(os, pointable);
1242                 writeU8(os, diggable);
1243                 writeU8(os, climbable);
1244                 writeU8(os, buildable_to);
1245                 os<<serializeString(""); // legacy: used to be metadata_name
1246                 writeU8(os, liquid_type);
1247                 os<<serializeString(liquid_alternative_flowing);
1248                 os<<serializeString(liquid_alternative_source);
1249                 writeU8(os, liquid_viscosity);
1250                 writeU8(os, liquid_renewable);
1251                 writeU8(os, light_source);
1252                 writeU32(os, damage_per_second);
1253                 node_box.serialize(os, protocol_version);
1254                 selection_box.serialize(os, protocol_version);
1255                 writeU8(os, legacy_facedir_simple);
1256                 writeU8(os, legacy_wallmounted);
1257                 serializeSimpleSoundSpec(sound_footstep, os);
1258                 serializeSimpleSoundSpec(sound_dig, os);
1259                 serializeSimpleSoundSpec(sound_dug, os);
1260                 writeU8(os, rightclickable);
1261                 writeU8(os, drowning);
1262                 writeU8(os, leveled);
1263                 writeU8(os, liquid_range);
1264         } else
1265                 throw SerializationError("ContentFeatures::serialize(): "
1266                         "Unsupported version requested");
1267 }
1268
1269
1270 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1271 {
1272         if (version == 5) // In PROTOCOL_VERSION 13
1273         {
1274                 name = deSerializeString(is);
1275                 groups.clear();
1276                 u32 groups_size = readU16(is);
1277                 for(u32 i=0; i<groups_size; i++){
1278                         std::string name = deSerializeString(is);
1279                         int value = readS16(is);
1280                         groups[name] = value;
1281                 }
1282                 drawtype = (enum NodeDrawType)readU8(is);
1283                 visual_scale = readF1000(is);
1284                 if (readU8(is) != 6)
1285                         throw SerializationError("unsupported tile count");
1286                 for (u32 i = 0; i < 6; i++)
1287                         tiledef[i].deSerialize(is);
1288                 if (readU8(is) != CF_SPECIAL_COUNT)
1289                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1290                 for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
1291                         tiledef_special[i].deSerialize(is);
1292                 alpha = readU8(is);
1293                 post_effect_color.setAlpha(readU8(is));
1294                 post_effect_color.setRed(readU8(is));
1295                 post_effect_color.setGreen(readU8(is));
1296                 post_effect_color.setBlue(readU8(is));
1297                 param_type = (enum ContentParamType)readU8(is);
1298                 param_type_2 = (enum ContentParamType2)readU8(is);
1299                 is_ground_content = readU8(is);
1300                 light_propagates = readU8(is);
1301                 sunlight_propagates = readU8(is);
1302                 walkable = readU8(is);
1303                 pointable = readU8(is);
1304                 diggable = readU8(is);
1305                 climbable = readU8(is);
1306                 buildable_to = readU8(is);
1307                 deSerializeString(is); // legacy: used to be metadata_name
1308                 liquid_type = (enum LiquidType)readU8(is);
1309                 liquid_alternative_flowing = deSerializeString(is);
1310                 liquid_alternative_source = deSerializeString(is);
1311                 liquid_viscosity = readU8(is);
1312                 light_source = readU8(is);
1313                 damage_per_second = readU32(is);
1314                 node_box.deSerialize(is);
1315                 selection_box.deSerialize(is);
1316                 legacy_facedir_simple = readU8(is);
1317                 legacy_wallmounted = readU8(is);
1318                 deSerializeSimpleSoundSpec(sound_footstep, is);
1319                 deSerializeSimpleSoundSpec(sound_dig, is);
1320                 deSerializeSimpleSoundSpec(sound_dug, is);
1321         } else if (version == 6) {
1322                 name = deSerializeString(is);
1323                 groups.clear();
1324                 u32 groups_size = readU16(is);
1325                 for (u32 i = 0; i < groups_size; i++) {
1326                         std::string name = deSerializeString(is);
1327                         int     value = readS16(is);
1328                         groups[name] = value;
1329                 }
1330                 drawtype = (enum NodeDrawType)readU8(is);
1331                 visual_scale = readF1000(is);
1332                 if (readU8(is) != 6)
1333                         throw SerializationError("unsupported tile count");
1334                 for (u32 i = 0; i < 6; i++)
1335                         tiledef[i].deSerialize(is);
1336                 // CF_SPECIAL_COUNT in version 6 = 2
1337                 if (readU8(is) != 2)
1338                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1339                 for (u32 i = 0; i < 2; i++)
1340                         tiledef_special[i].deSerialize(is);
1341                 alpha = readU8(is);
1342                 post_effect_color.setAlpha(readU8(is));
1343                 post_effect_color.setRed(readU8(is));
1344                 post_effect_color.setGreen(readU8(is));
1345                 post_effect_color.setBlue(readU8(is));
1346                 param_type = (enum ContentParamType)readU8(is);
1347                 param_type_2 = (enum ContentParamType2)readU8(is);
1348                 is_ground_content = readU8(is);
1349                 light_propagates = readU8(is);
1350                 sunlight_propagates = readU8(is);
1351                 walkable = readU8(is);
1352                 pointable = readU8(is);
1353                 diggable = readU8(is);
1354                 climbable = readU8(is);
1355                 buildable_to = readU8(is);
1356                 deSerializeString(is); // legacy: used to be metadata_name
1357                 liquid_type = (enum LiquidType)readU8(is);
1358                 liquid_alternative_flowing = deSerializeString(is);
1359                 liquid_alternative_source = deSerializeString(is);
1360                 liquid_viscosity = readU8(is);
1361                 liquid_renewable = readU8(is);
1362                 light_source = readU8(is);
1363                 damage_per_second = readU32(is);
1364                 node_box.deSerialize(is);
1365                 selection_box.deSerialize(is);
1366                 legacy_facedir_simple = readU8(is);
1367                 legacy_wallmounted = readU8(is);
1368                 deSerializeSimpleSoundSpec(sound_footstep, is);
1369                 deSerializeSimpleSoundSpec(sound_dig, is);
1370                 deSerializeSimpleSoundSpec(sound_dug, is);
1371                 rightclickable = readU8(is);
1372                 drowning = readU8(is);
1373                 leveled = readU8(is);
1374                 liquid_range = readU8(is);
1375         } else {
1376                 throw SerializationError("unsupported ContentFeatures version");
1377         }
1378 }
1379
1380
1381 inline bool CNodeDefManager::getNodeRegistrationStatus() const
1382 {
1383         return m_node_registration_complete;
1384 }
1385
1386
1387 inline void CNodeDefManager::setNodeRegistrationStatus(bool completed)
1388 {
1389         m_node_registration_complete = completed;
1390 }
1391
1392
1393 void CNodeDefManager::pendNodeResolve(NodeResolver *nr)
1394 {
1395         nr->m_ndef = this;
1396         if (m_node_registration_complete)
1397                 nr->nodeResolveInternal();
1398         else
1399                 m_pending_resolve_callbacks.push_back(nr);
1400 }
1401
1402
1403 bool CNodeDefManager::cancelNodeResolveCallback(NodeResolver *nr)
1404 {
1405         size_t len = m_pending_resolve_callbacks.size();
1406         for (size_t i = 0; i != len; i++) {
1407                 if (nr != m_pending_resolve_callbacks[i])
1408                         continue;
1409
1410                 len--;
1411                 m_pending_resolve_callbacks[i] = m_pending_resolve_callbacks[len];
1412                 m_pending_resolve_callbacks.resize(len);
1413                 return true;
1414         }
1415
1416         return false;
1417 }
1418
1419
1420 void CNodeDefManager::runNodeResolveCallbacks()
1421 {
1422         for (size_t i = 0; i != m_pending_resolve_callbacks.size(); i++) {
1423                 NodeResolver *nr = m_pending_resolve_callbacks[i];
1424                 nr->nodeResolveInternal();
1425         }
1426
1427         m_pending_resolve_callbacks.clear();
1428 }
1429
1430
1431 void CNodeDefManager::resetNodeResolveState()
1432 {
1433         m_node_registration_complete = false;
1434         m_pending_resolve_callbacks.clear();
1435 }
1436
1437
1438 ////
1439 //// NodeResolver
1440 ////
1441
1442 NodeResolver::NodeResolver()
1443 {
1444         m_ndef            = NULL;
1445         m_nodenames_idx   = 0;
1446         m_nnlistsizes_idx = 0;
1447         m_resolve_done    = false;
1448
1449         m_nodenames.reserve(16);
1450         m_nnlistsizes.reserve(4);
1451 }
1452
1453
1454 NodeResolver::~NodeResolver()
1455 {
1456         if (!m_resolve_done && m_ndef)
1457                 m_ndef->cancelNodeResolveCallback(this);
1458 }
1459
1460
1461 void NodeResolver::nodeResolveInternal()
1462 {
1463         m_nodenames_idx   = 0;
1464         m_nnlistsizes_idx = 0;
1465
1466         resolveNodeNames();
1467         m_resolve_done = true;
1468
1469         m_nodenames.clear();
1470         m_nnlistsizes.clear();
1471 }
1472
1473
1474 bool NodeResolver::getIdFromNrBacklog(content_t *result_out,
1475         const std::string &node_alt, content_t c_fallback)
1476 {
1477         if (m_nodenames_idx == m_nodenames.size()) {
1478                 *result_out = c_fallback;
1479                 errorstream << "NodeResolver: no more nodes in list" << std::endl;
1480                 return false;
1481         }
1482
1483         content_t c;
1484         std::string name = m_nodenames[m_nodenames_idx++];
1485
1486         bool success = m_ndef->getId(name, c);
1487         if (!success && node_alt != "") {
1488                 name = node_alt;
1489                 success = m_ndef->getId(name, c);
1490         }
1491
1492         if (!success) {
1493                 errorstream << "NodeResolver: failed to resolve node name '" << name
1494                         << "'." << std::endl;
1495                 c = c_fallback;
1496         }
1497
1498         *result_out = c;
1499         return success;
1500 }
1501
1502
1503 bool NodeResolver::getIdsFromNrBacklog(std::vector<content_t> *result_out,
1504         bool all_required, content_t c_fallback)
1505 {
1506         bool success = true;
1507
1508         if (m_nnlistsizes_idx == m_nnlistsizes.size()) {
1509                 errorstream << "NodeResolver: no more node lists" << std::endl;
1510                 return false;
1511         }
1512
1513         size_t length = m_nnlistsizes[m_nnlistsizes_idx++];
1514
1515         while (length--) {
1516                 if (m_nodenames_idx == m_nodenames.size()) {
1517                         errorstream << "NodeResolver: no more nodes in list" << std::endl;
1518                         return false;
1519                 }
1520
1521                 content_t c;
1522                 std::string &name = m_nodenames[m_nodenames_idx++];
1523
1524                 if (name.substr(0,6) != "group:") {
1525                         if (m_ndef->getId(name, c)) {
1526                                 result_out->push_back(c);
1527                         } else if (all_required) {
1528                                 errorstream << "NodeResolver: failed to resolve node name '"
1529                                         << name << "'." << std::endl;
1530                                 result_out->push_back(c_fallback);
1531                                 success = false;
1532                         }
1533                 } else {
1534                         std::set<content_t> cids;
1535                         std::set<content_t>::iterator it;
1536                         m_ndef->getIds(name, cids);
1537                         for (it = cids.begin(); it != cids.end(); ++it)
1538                                 result_out->push_back(*it);
1539                 }
1540         }
1541
1542         return success;
1543 }