src/nodedef.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "nodedef.h"
  21
  22 #include "main.h" // For g_settings
  23 #include "itemdef.h"
  24 #ifndef SERVER
  25 #include "tile.h"
  26 #include "mesh.h"
  27 #include <IMeshManipulator.h>
  28 #endif
  29 #include "log.h"
  30 #include "settings.h"
  31 #include "nameidmapping.h"
  32 #include "util/numeric.h"
  33 #include "util/serialize.h"
  34 #include "exceptions.h"
  35 #include "debug.h"
  36 #include "gamedef.h"
  37
  38 /*
  39         NodeBox
  40 */
  41
  42 void NodeBox::reset()
  43 {
  44         type = NODEBOX_REGULAR;
  45         // default is empty
  46         fixed.clear();
  47         // default is sign/ladder-like
  48         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  49         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  50         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  51 }
  52
  53 void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
  54 {
  55         int version = protocol_version >= 21 ? 2 : 1;
  56         writeU8(os, version);
  57
  58         if (version == 1 && type == NODEBOX_LEVELED)
  59                 writeU8(os, NODEBOX_FIXED);
  60         else
  61                 writeU8(os, type);
  62
  63         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  64         {
  65                 writeU16(os, fixed.size());
  66                 for(std::vector<aabb3f>::const_iterator
  67                                 i = fixed.begin();
  68                                 i != fixed.end(); i++)
  69                 {
  70                         writeV3F1000(os, i->MinEdge);
  71                         writeV3F1000(os, i->MaxEdge);
  72                 }
  73         }
  74         else if(type == NODEBOX_WALLMOUNTED)
  75         {
  76                 writeV3F1000(os, wall_top.MinEdge);
  77                 writeV3F1000(os, wall_top.MaxEdge);
  78                 writeV3F1000(os, wall_bottom.MinEdge);
  79                 writeV3F1000(os, wall_bottom.MaxEdge);
  80                 writeV3F1000(os, wall_side.MinEdge);
  81                 writeV3F1000(os, wall_side.MaxEdge);
  82         }
  83 }
  84
  85 void NodeBox::deSerialize(std::istream &is)
  86 {
  87         int version = readU8(is);
  88         if(version < 1 || version > 2)
  89                 throw SerializationError("unsupported NodeBox version");
  90
  91         reset();
  92
  93         type = (enum NodeBoxType)readU8(is);
  94
  95         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  96         {
  97                 u16 fixed_count = readU16(is);
  98                 while(fixed_count--)
  99                 {
 100                         aabb3f box;
 101                         box.MinEdge = readV3F1000(is);
 102                         box.MaxEdge = readV3F1000(is);
 103                         fixed.push_back(box);
 104                 }
 105         }
 106         else if(type == NODEBOX_WALLMOUNTED)
 107         {
 108                 wall_top.MinEdge = readV3F1000(is);
 109                 wall_top.MaxEdge = readV3F1000(is);
 110                 wall_bottom.MinEdge = readV3F1000(is);
 111                 wall_bottom.MaxEdge = readV3F1000(is);
 112                 wall_side.MinEdge = readV3F1000(is);
 113                 wall_side.MaxEdge = readV3F1000(is);
 114         }
 115 }
 116
 117 /*
 118         TileDef
 119 */
 120
 121 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 122 {
 123         if(protocol_version >= 17)
 124                 writeU8(os, 1);
 125         else
 126                 writeU8(os, 0);
 127         os<<serializeString(name);
 128         writeU8(os, animation.type);
 129         writeU16(os, animation.aspect_w);
 130         writeU16(os, animation.aspect_h);
 131         writeF1000(os, animation.length);
 132         if(protocol_version >= 17)
 133                 writeU8(os, backface_culling);
 134 }
 135
 136 void TileDef::deSerialize(std::istream &is)
 137 {
 138         int version = readU8(is);
 139         name = deSerializeString(is);
 140         animation.type = (TileAnimationType)readU8(is);
 141         animation.aspect_w = readU16(is);
 142         animation.aspect_h = readU16(is);
 143         animation.length = readF1000(is);
 144         if(version >= 1)
 145                 backface_culling = readU8(is);
 146 }
 147
 148 /*
 149         SimpleSoundSpec serialization
 150 */
 151
 152 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 153                 std::ostream &os)
 154 {
 155         os<<serializeString(ss.name);
 156         writeF1000(os, ss.gain);
 157 }
 158 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 159 {
 160         ss.name = deSerializeString(is);
 161         ss.gain = readF1000(is);
 162 }
 163
 164 /*
 165         ContentFeatures
 166 */
 167
 168 ContentFeatures::ContentFeatures()
 169 {
 170         reset();
 171 }
 172
 173 ContentFeatures::~ContentFeatures()
 174 {
 175 }
 176
 177 void ContentFeatures::reset()
 178 {
 179         /*
 180                 Cached stuff
 181         */
 182 #ifndef SERVER
 183         solidness = 2;
 184         visual_solidness = 0;
 185         backface_culling = true;
 186 #endif
 187         has_on_construct = false;
 188         has_on_destruct = false;
 189         has_after_destruct = false;
 190         /*
 191                 Actual data
 192
 193                 NOTE: Most of this is always overridden by the default values given
 194                       in builtin.lua
 195         */
 196         name = "";
 197         groups.clear();
 198         // Unknown nodes can be dug
 199         groups["dig_immediate"] = 2;
 200         drawtype = NDT_NORMAL;
 201         mesh = "";
 202 #ifndef SERVER
 203         for(u32 i = 0; i < 24; i++)
 204                 mesh_ptr[i] = NULL;
 205 #endif
 206         visual_scale = 1.0;
 207         for(u32 i = 0; i < 6; i++)
 208                 tiledef[i] = TileDef();
 209         for(u16 j = 0; j < CF_SPECIAL_COUNT; j++)
 210                 tiledef_special[j] = TileDef();
 211         alpha = 255;
 212         post_effect_color = video::SColor(0, 0, 0, 0);
 213         param_type = CPT_NONE;
 214         param_type_2 = CPT2_NONE;
 215         is_ground_content = false;
 216         light_propagates = false;
 217         sunlight_propagates = false;
 218         walkable = true;
 219         pointable = true;
 220         diggable = true;
 221         climbable = false;
 222         buildable_to = false;
 223         rightclickable = true;
 224         leveled = 0;
 225         liquid_type = LIQUID_NONE;
 226         liquid_alternative_flowing = "";
 227         liquid_alternative_source = "";
 228         liquid_viscosity = 0;
 229         liquid_renewable = true;
 230         freezemelt = "";
 231         liquid_range = LIQUID_LEVEL_MAX+1;
 232         drowning = 0;
 233         light_source = 0;
 234         damage_per_second = 0;
 235         node_box = NodeBox();
 236         selection_box = NodeBox();
 237         collision_box = NodeBox();
 238         waving = 0;
 239         legacy_facedir_simple = false;
 240         legacy_wallmounted = false;
 241         sound_footstep = SimpleSoundSpec();
 242         sound_dig = SimpleSoundSpec("__group");
 243         sound_dug = SimpleSoundSpec();
 244 }
 245
 246 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 247 {
 248         if(protocol_version < 24){
 249                 serializeOld(os, protocol_version);
 250                 return;
 251         }
 252
 253         writeU8(os, 7); // version
 254         os<<serializeString(name);
 255         writeU16(os, groups.size());
 256         for(ItemGroupList::const_iterator
 257                         i = groups.begin(); i != groups.end(); i++){
 258                 os<<serializeString(i->first);
 259                 writeS16(os, i->second);
 260         }
 261         writeU8(os, drawtype);
 262         writeF1000(os, visual_scale);
 263         writeU8(os, 6);
 264         for(u32 i = 0; i < 6; i++)
 265                 tiledef[i].serialize(os, protocol_version);
 266         writeU8(os, CF_SPECIAL_COUNT);
 267         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++){
 268                 tiledef_special[i].serialize(os, protocol_version);
 269         }
 270         writeU8(os, alpha);
 271         writeU8(os, post_effect_color.getAlpha());
 272         writeU8(os, post_effect_color.getRed());
 273         writeU8(os, post_effect_color.getGreen());
 274         writeU8(os, post_effect_color.getBlue());
 275         writeU8(os, param_type);
 276         writeU8(os, param_type_2);
 277         writeU8(os, is_ground_content);
 278         writeU8(os, light_propagates);
 279         writeU8(os, sunlight_propagates);
 280         writeU8(os, walkable);
 281         writeU8(os, pointable);
 282         writeU8(os, diggable);
 283         writeU8(os, climbable);
 284         writeU8(os, buildable_to);
 285         os<<serializeString(""); // legacy: used to be metadata_name
 286         writeU8(os, liquid_type);
 287         os<<serializeString(liquid_alternative_flowing);
 288         os<<serializeString(liquid_alternative_source);
 289         writeU8(os, liquid_viscosity);
 290         writeU8(os, liquid_renewable);
 291         writeU8(os, light_source);
 292         writeU32(os, damage_per_second);
 293         node_box.serialize(os, protocol_version);
 294         selection_box.serialize(os, protocol_version);
 295         writeU8(os, legacy_facedir_simple);
 296         writeU8(os, legacy_wallmounted);
 297         serializeSimpleSoundSpec(sound_footstep, os);
 298         serializeSimpleSoundSpec(sound_dig, os);
 299         serializeSimpleSoundSpec(sound_dug, os);
 300         writeU8(os, rightclickable);
 301         writeU8(os, drowning);
 302         writeU8(os, leveled);
 303         writeU8(os, liquid_range);
 304         writeU8(os, waving);
 305         // Stuff below should be moved to correct place in a version that otherwise changes
 306         // the protocol version
 307         os<<serializeString(mesh);
 308         collision_box.serialize(os, protocol_version);
 309 }
 310
 311 void ContentFeatures::deSerialize(std::istream &is)
 312 {
 313         int version = readU8(is);
 314         if(version != 7){
 315                 deSerializeOld(is, version);
 316                 return;
 317         }
 318
 319         name = deSerializeString(is);
 320         groups.clear();
 321         u32 groups_size = readU16(is);
 322         for(u32 i = 0; i < groups_size; i++){
 323                 std::string name = deSerializeString(is);
 324                 int value = readS16(is);
 325                 groups[name] = value;
 326         }
 327         drawtype = (enum NodeDrawType)readU8(is);
 328         visual_scale = readF1000(is);
 329         if(readU8(is) != 6)
 330                 throw SerializationError("unsupported tile count");
 331         for(u32 i = 0; i < 6; i++)
 332                 tiledef[i].deSerialize(is);
 333         if(readU8(is) != CF_SPECIAL_COUNT)
 334                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 335         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 336                 tiledef_special[i].deSerialize(is);
 337         alpha = readU8(is);
 338         post_effect_color.setAlpha(readU8(is));
 339         post_effect_color.setRed(readU8(is));
 340         post_effect_color.setGreen(readU8(is));
 341         post_effect_color.setBlue(readU8(is));
 342         param_type = (enum ContentParamType)readU8(is);
 343         param_type_2 = (enum ContentParamType2)readU8(is);
 344         is_ground_content = readU8(is);
 345         light_propagates = readU8(is);
 346         sunlight_propagates = readU8(is);
 347         walkable = readU8(is);
 348         pointable = readU8(is);
 349         diggable = readU8(is);
 350         climbable = readU8(is);
 351         buildable_to = readU8(is);
 352         deSerializeString(is); // legacy: used to be metadata_name
 353         liquid_type = (enum LiquidType)readU8(is);
 354         liquid_alternative_flowing = deSerializeString(is);
 355         liquid_alternative_source = deSerializeString(is);
 356         liquid_viscosity = readU8(is);
 357         liquid_renewable = readU8(is);
 358         light_source = readU8(is);
 359         damage_per_second = readU32(is);
 360         node_box.deSerialize(is);
 361         selection_box.deSerialize(is);
 362         legacy_facedir_simple = readU8(is);
 363         legacy_wallmounted = readU8(is);
 364         deSerializeSimpleSoundSpec(sound_footstep, is);
 365         deSerializeSimpleSoundSpec(sound_dig, is);
 366         deSerializeSimpleSoundSpec(sound_dug, is);
 367         rightclickable = readU8(is);
 368         drowning = readU8(is);
 369         leveled = readU8(is);
 370         liquid_range = readU8(is);
 371         waving = readU8(is);
 372         // If you add anything here, insert it primarily inside the try-catch
 373         // block to not need to increase the version.
 374         try{
 375                 // Stuff below should be moved to correct place in a version that
 376                 // otherwise changes the protocol version
 377         mesh = deSerializeString(is);
 378         collision_box.deSerialize(is);
 379         }catch(SerializationError &e) {};
 380 }
 381
 382 /*
 383         CNodeDefManager
 384 */
 385
 386 class CNodeDefManager: public IWritableNodeDefManager {
 387 public:
 388         CNodeDefManager();
 389         virtual ~CNodeDefManager();
 390         void clear();
 391         virtual IWritableNodeDefManager *clone();
 392         inline virtual const ContentFeatures& get(content_t c) const;
 393         inline virtual const ContentFeatures& get(const MapNode &n) const;
 394         virtual bool getId(const std::string &name, content_t &result) const;
 395         virtual content_t getId(const std::string &name) const;
 396         virtual void getIds(const std::string &name, std::set<content_t> &result) const;
 397         virtual const ContentFeatures& get(const std::string &name) const;
 398         content_t allocateId();
 399         virtual content_t set(const std::string &name, const ContentFeatures &def);
 400         virtual content_t allocateDummy(const std::string &name);
 401         virtual void updateAliases(IItemDefManager *idef);
 402         virtual void updateTextures(IGameDef *gamedef);
 403         void serialize(std::ostream &os, u16 protocol_version);
 404         void deSerialize(std::istream &is);
 405         virtual NodeResolver *getResolver();
 406
 407 private:
 408         void addNameIdMapping(content_t i, std::string name);
 409 #ifndef SERVER
 410         void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
 411                 u32 shader_id, bool use_normal_texture, bool backface_culling,
 412                 u8 alpha, u8 material_type);
 413 #endif
 414
 415         // Features indexed by id
 416         std::vector<ContentFeatures> m_content_features;
 417
 418         // A mapping for fast converting back and forth between names and ids
 419         NameIdMapping m_name_id_mapping;
 420
 421         // Like m_name_id_mapping, but only from names to ids, and includes
 422         // item aliases too. Updated by updateAliases()
 423         // Note: Not serialized.
 424
 425         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 426
 427         // A mapping from groups to a list of content_ts (and their levels)
 428         // that belong to it.  Necessary for a direct lookup in getIds().
 429         // Note: Not serialized.
 430         std::map<std::string, GroupItems> m_group_to_items;
 431
 432         // Next possibly free id
 433         content_t m_next_id;
 434
 435         // NodeResolver to queue pending node resolutions
 436         NodeResolver m_resolver;
 437 };
 438
 439
 440 CNodeDefManager::CNodeDefManager() :
 441         m_resolver(this)
 442 {
 443         clear();
 444 }
 445
 446
 447 CNodeDefManager::~CNodeDefManager()
 448 {
 449 #ifndef SERVER
 450         for (u32 i = 0; i < m_content_features.size(); i++) {
 451                 ContentFeatures *f = &m_content_features[i];
 452                 for (u32 j = 0; j < 24; j++) {
 453                         if (f->mesh_ptr[j])
 454                                 f->mesh_ptr[j]->drop();
 455                 }
 456         }
 457 #endif
 458 }
 459
 460
 461 void CNodeDefManager::clear()
 462 {
 463         m_content_features.clear();
 464         m_name_id_mapping.clear();
 465         m_name_id_mapping_with_aliases.clear();
 466         m_group_to_items.clear();
 467         m_next_id = 0;
 468
 469         u32 initial_length = 0;
 470         initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 471         initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 472         initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 473         m_content_features.resize(initial_length);
 474
 475         // Set CONTENT_UNKNOWN
 476         {
 477                 ContentFeatures f;
 478                 f.name = "unknown";
 479                 // Insert directly into containers
 480                 content_t c = CONTENT_UNKNOWN;
 481                 m_content_features[c] = f;
 482                 addNameIdMapping(c, f.name);
 483         }
 484
 485         // Set CONTENT_AIR
 486         {
 487                 ContentFeatures f;
 488                 f.name                = "air";
 489                 f.drawtype            = NDT_AIRLIKE;
 490                 f.param_type          = CPT_LIGHT;
 491                 f.light_propagates    = true;
 492                 f.sunlight_propagates = true;
 493                 f.walkable            = false;
 494                 f.pointable           = false;
 495                 f.diggable            = false;
 496                 f.buildable_to        = true;
 497                 f.is_ground_content   = true;
 498                 // Insert directly into containers
 499                 content_t c = CONTENT_AIR;
 500                 m_content_features[c] = f;
 501                 addNameIdMapping(c, f.name);
 502         }
 503
 504         // Set CONTENT_IGNORE
 505         {
 506                 ContentFeatures f;
 507                 f.name                = "ignore";
 508                 f.drawtype            = NDT_AIRLIKE;
 509                 f.param_type          = CPT_NONE;
 510                 f.light_propagates    = false;
 511                 f.sunlight_propagates = false;
 512                 f.walkable            = false;
 513                 f.pointable           = false;
 514                 f.diggable            = false;
 515                 f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 516                 f.is_ground_content   = true;
 517                 // Insert directly into containers
 518                 content_t c = CONTENT_IGNORE;
 519                 m_content_features[c] = f;
 520                 addNameIdMapping(c, f.name);
 521         }
 522 }
 523
 524
 525 IWritableNodeDefManager *CNodeDefManager::clone()
 526 {
 527         CNodeDefManager *mgr = new CNodeDefManager();
 528         *mgr = *this;
 529         return mgr;
 530 }
 531
 532
 533 inline const ContentFeatures& CNodeDefManager::get(content_t c) const
 534 {
 535         return c < m_content_features.size()
 536                         ? m_content_features[c] : m_content_features[CONTENT_UNKNOWN];
 537 }
 538
 539
 540 inline const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
 541 {
 542         return get(n.getContent());
 543 }
 544
 545
 546 bool CNodeDefManager::getId(const std::string &name, content_t &result) const
 547 {
 548         std::map<std::string, content_t>::const_iterator
 549                 i = m_name_id_mapping_with_aliases.find(name);
 550         if(i == m_name_id_mapping_with_aliases.end())
 551                 return false;
 552         result = i->second;
 553         return true;
 554 }
 555
 556
 557 content_t CNodeDefManager::getId(const std::string &name) const
 558 {
 559         content_t id = CONTENT_IGNORE;
 560         getId(name, id);
 561         return id;
 562 }
 563
 564
 565 void CNodeDefManager::getIds(const std::string &name,
 566                 std::set<content_t> &result) const
 567 {
 568         //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 569         if (name.substr(0,6) != "group:") {
 570                 content_t id = CONTENT_IGNORE;
 571                 if(getId(name, id))
 572                         result.insert(id);
 573                 return;
 574         }
 575         std::string group = name.substr(6);
 576
 577         std::map<std::string, GroupItems>::const_iterator
 578                 i = m_group_to_items.find(group);
 579         if (i == m_group_to_items.end())
 580                 return;
 581
 582         const GroupItems &items = i->second;
 583         for (GroupItems::const_iterator j = items.begin();
 584                 j != items.end(); ++j) {
 585                 if ((*j).second != 0)
 586                         result.insert((*j).first);
 587         }
 588         //printf("getIds: %dus\n", t.stop());
 589 }
 590
 591
 592 const ContentFeatures& CNodeDefManager::get(const std::string &name) const
 593 {
 594         content_t id = CONTENT_UNKNOWN;
 595         getId(name, id);
 596         return get(id);
 597 }
 598
 599
 600 // returns CONTENT_IGNORE if no free ID found
 601 content_t CNodeDefManager::allocateId()
 602 {
 603         for (content_t id = m_next_id;
 604                         id >= m_next_id; // overflow?
 605                         ++id) {
 606                 while (id >= m_content_features.size()) {
 607                         m_content_features.push_back(ContentFeatures());
 608                 }
 609                 const ContentFeatures &f = m_content_features[id];
 610                 if (f.name == "") {
 611                         m_next_id = id + 1;
 612                         return id;
 613                 }
 614         }
 615         // If we arrive here, an overflow occurred in id.
 616         // That means no ID was found
 617         return CONTENT_IGNORE;
 618 }
 619
 620
 621 // IWritableNodeDefManager
 622 content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
 623 {
 624         assert(name != "");
 625         assert(name == def.name);
 626
 627         // Don't allow redefining ignore (but allow air and unknown)
 628         if (name == "ignore") {
 629                 infostream << "NodeDefManager: WARNING: Ignoring "
 630                         "CONTENT_IGNORE redefinition"<<std::endl;
 631                 return CONTENT_IGNORE;
 632         }
 633
 634         content_t id = CONTENT_IGNORE;
 635         if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 636                 // Get new id
 637                 id = allocateId();
 638                 if (id == CONTENT_IGNORE) {
 639                         infostream << "NodeDefManager: WARNING: Absolute "
 640                                 "limit reached" << std::endl;
 641                         return CONTENT_IGNORE;
 642                 }
 643                 assert(id != CONTENT_IGNORE);
 644                 addNameIdMapping(id, name);
 645         }
 646         m_content_features[id] = def;
 647         verbosestream << "NodeDefManager: registering content id \"" << id
 648                 << "\": name=\"" << def.name << "\""<<std::endl;
 649
 650         // Add this content to the list of all groups it belongs to
 651         // FIXME: This should remove a node from groups it no longer
 652         // belongs to when a node is re-registered
 653         for (ItemGroupList::const_iterator i = def.groups.begin();
 654                 i != def.groups.end(); ++i) {
 655                 std::string group_name = i->first;
 656
 657                 std::map<std::string, GroupItems>::iterator
 658                         j = m_group_to_items.find(group_name);
 659                 if (j == m_group_to_items.end()) {
 660                         m_group_to_items[group_name].push_back(
 661                                         std::make_pair(id, i->second));
 662                 } else {
 663                         GroupItems &items = j->second;
 664                         items.push_back(std::make_pair(id, i->second));
 665                 }
 666         }
 667         return id;
 668 }
 669
 670
 671 content_t CNodeDefManager::allocateDummy(const std::string &name)
 672 {
 673         assert(name != "");
 674         ContentFeatures f;
 675         f.name = name;
 676         return set(name, f);
 677 }
 678
 679
 680 void CNodeDefManager::updateAliases(IItemDefManager *idef)
 681 {
 682         std::set<std::string> all = idef->getAll();
 683         m_name_id_mapping_with_aliases.clear();
 684         for (std::set<std::string>::iterator
 685                         i = all.begin(); i != all.end(); i++) {
 686                 std::string name = *i;
 687                 std::string convert_to = idef->getAlias(name);
 688                 content_t id;
 689                 if (m_name_id_mapping.getId(convert_to, id)) {
 690                         m_name_id_mapping_with_aliases.insert(
 691                                         std::make_pair(name, id));
 692                 }
 693         }
 694 }
 695
 696
 697 void CNodeDefManager::updateTextures(IGameDef *gamedef)
 698 {
 699 #ifndef SERVER
 700         infostream << "CNodeDefManager::updateTextures(): Updating "
 701                 "textures in node definitions" << std::endl;
 702
 703         ITextureSource *tsrc = gamedef->tsrc();
 704         IShaderSource *shdsrc = gamedef->getShaderSource();
 705         scene::ISceneManager* smgr = gamedef->getSceneManager();
 706         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 707
 708         bool new_style_water           = g_settings->getBool("new_style_water");
 709         bool new_style_leaves          = g_settings->getBool("new_style_leaves");
 710         bool connected_glass           = g_settings->getBool("connected_glass");
 711         bool opaque_water              = g_settings->getBool("opaque_water");
 712         bool enable_shaders            = g_settings->getBool("enable_shaders");
 713         bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 714         bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 715         bool enable_mesh_cache         = g_settings->getBool("enable_mesh_cache");
 716
 717         bool use_normal_texture = enable_shaders &&
 718                 (enable_bumpmapping || enable_parallax_occlusion);
 719
 720         for (u32 i = 0; i < m_content_features.size(); i++) {
 721                 ContentFeatures *f = &m_content_features[i];
 722
 723                 // Figure out the actual tiles to use
 724                 TileDef tiledef[6];
 725                 for (u32 j = 0; j < 6; j++) {
 726                         tiledef[j] = f->tiledef[j];
 727                         if (tiledef[j].name == "")
 728                                 tiledef[j].name = "unknown_node.png";
 729                 }
 730
 731                 bool is_liquid = false;
 732                 bool is_water_surface = false;
 733
 734                 u8 material_type = (f->alpha == 255) ?
 735                         TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 736
 737                 switch (f->drawtype) {
 738                 default:
 739                 case NDT_NORMAL:
 740                         f->solidness = 2;
 741                         break;
 742                 case NDT_AIRLIKE:
 743                         f->solidness = 0;
 744                         break;
 745                 case NDT_LIQUID:
 746                         assert(f->liquid_type == LIQUID_SOURCE);
 747                         if (opaque_water)
 748                                 f->alpha = 255;
 749                         if (new_style_water){
 750                                 f->solidness = 0;
 751                         } else {
 752                                 f->solidness = 1;
 753                                 f->backface_culling = false;
 754                         }
 755                         is_liquid = true;
 756                         break;
 757                 case NDT_FLOWINGLIQUID:
 758                         assert(f->liquid_type == LIQUID_FLOWING);
 759                         f->solidness = 0;
 760                         if (opaque_water)
 761                                 f->alpha = 255;
 762                         is_liquid = true;
 763                         break;
 764                 case NDT_GLASSLIKE:
 765                         f->solidness = 0;
 766                         f->visual_solidness = 1;
 767                         break;
 768                 case NDT_GLASSLIKE_FRAMED:
 769                         f->solidness = 0;
 770                         f->visual_solidness = 1;
 771                         break;
 772                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 773                         f->solidness = 0;
 774                         f->visual_solidness = 1;
 775                         f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 776                         break;
 777                 case NDT_ALLFACES:
 778                         f->solidness = 0;
 779                         f->visual_solidness = 1;
 780                         break;
 781                 case NDT_ALLFACES_OPTIONAL:
 782                         if (new_style_leaves) {
 783                                 f->drawtype = NDT_ALLFACES;
 784                                 f->solidness = 0;
 785                                 f->visual_solidness = 1;
 786                         } else {
 787                                 f->drawtype = NDT_NORMAL;
 788                                 f->solidness = 2;
 789                                 for (u32 i = 0; i < 6; i++)
 790                                         tiledef[i].name += std::string("^[noalpha");
 791                         }
 792                         if (f->waving == 1)
 793                                 material_type = TILE_MATERIAL_WAVING_LEAVES;
 794                         break;
 795                 case NDT_PLANTLIKE:
 796                         f->solidness = 0;
 797                         f->backface_culling = false;
 798                         if (f->waving == 1)
 799                                 material_type = TILE_MATERIAL_WAVING_PLANTS;
 800                         break;
 801                 case NDT_FIRELIKE:
 802                         f->backface_culling = false;
 803                         f->solidness = 0;
 804                         break;
 805                 case NDT_MESH:
 806                         f->solidness = 0;
 807                         f->backface_culling = false;
 808                         break;
 809                 case NDT_TORCHLIKE:
 810                 case NDT_SIGNLIKE:
 811                 case NDT_FENCELIKE:
 812                 case NDT_RAILLIKE:
 813                 case NDT_NODEBOX:
 814                         f->solidness = 0;
 815                         break;
 816                 }
 817
 818                 if (is_liquid) {
 819                         material_type = (f->alpha == 255) ?
 820                                 TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 821                         if (f->name == "default:water_source")
 822                                 is_water_surface = true;
 823                 }
 824
 825                 u32 tile_shader[6];
 826                 for (u16 j = 0; j < 6; j++) {
 827                         tile_shader[j] = shdsrc->getShader("nodes_shader",
 828                                 material_type, f->drawtype);
 829                 }
 830
 831                 if (is_water_surface) {
 832                         tile_shader[0] = shdsrc->getShader("water_surface_shader",
 833                                 material_type, f->drawtype);
 834                 }
 835
 836                 // Tiles (fill in f->tiles[])
 837                 for (u16 j = 0; j < 6; j++) {
 838                         fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
 839                                 use_normal_texture, f->backface_culling, f->alpha, material_type);
 840                 }
 841
 842                 // Special tiles (fill in f->special_tiles[])
 843                 for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
 844                         fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
 845                                 tile_shader[j], use_normal_texture,
 846                                 f->tiledef_special[j].backface_culling, f->alpha, material_type);
 847                 }
 848
 849                 if ((f->drawtype == NDT_MESH) && (f->mesh != "")) {
 850                         // Meshnode drawtype
 851                         // Read the mesh and apply scale
 852                         f->mesh_ptr[0] = gamedef->getMesh(f->mesh);
 853                         if (f->mesh_ptr[0]){
 854                                 v3f scale = v3f(1.0, 1.0, 1.0) * BS * f->visual_scale;
 855                                 scaleMesh(f->mesh_ptr[0], scale);
 856                                 recalculateBoundingBox(f->mesh_ptr[0]);
 857                         }
 858                 } else if ((f->drawtype == NDT_NODEBOX) &&
 859                                 ((f->node_box.type == NODEBOX_REGULAR) ||
 860                                 (f->node_box.type == NODEBOX_FIXED)) &&
 861                                 (!f->node_box.fixed.empty())) {
 862                         //Convert regular nodebox nodes to meshnodes
 863                         //Change the drawtype and apply scale
 864                         f->drawtype = NDT_MESH;
 865                         f->mesh_ptr[0] = convertNodeboxNodeToMesh(f);
 866                         v3f scale = v3f(1.0, 1.0, 1.0) * f->visual_scale;
 867                         scaleMesh(f->mesh_ptr[0], scale);
 868                         recalculateBoundingBox(f->mesh_ptr[0]);
 869                 }
 870
 871                 //Cache 6dfacedir and wallmounted rotated clones of meshes
 872                 if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_FACEDIR)) {
 873                         for (u16 j = 1; j < 24; j++) {
 874                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 875                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], j);
 876                                 recalculateBoundingBox(f->mesh_ptr[j]);
 877                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 878                         }
 879                 } else if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_WALLMOUNTED)) {
 880                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
 881                         for (u16 j = 1; j < 6; j++) {
 882                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 883                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], wm_to_6d[j]);
 884                                 recalculateBoundingBox(f->mesh_ptr[j]);
 885                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 886                         }
 887                         rotateMeshBy6dFacedir(f->mesh_ptr[0], wm_to_6d[0]);
 888                         recalculateBoundingBox(f->mesh_ptr[0]);
 889                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 890                 }
 891         }
 892 #endif
 893 }
 894
 895
 896 #ifndef SERVER
 897 void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
 898                 TileDef *tiledef, u32 shader_id, bool use_normal_texture,
 899                 bool backface_culling, u8 alpha, u8 material_type)
 900 {
 901         tile->shader_id     = shader_id;
 902         tile->texture       = tsrc->getTexture(tiledef->name, &tile->texture_id);
 903         tile->alpha         = alpha;
 904         tile->material_type = material_type;
 905
 906         // Normal texture
 907         if (use_normal_texture)
 908                 tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
 909
 910         // Material flags
 911         tile->material_flags = 0;
 912         if (backface_culling)
 913                 tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 914         if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
 915                 tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 916
 917         // Animation parameters
 918         int frame_count = 1;
 919         if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
 920                 // Get texture size to determine frame count by aspect ratio
 921                 v2u32 size = tile->texture->getOriginalSize();
 922                 int frame_height = (float)size.X /
 923                                 (float)tiledef->animation.aspect_w *
 924                                 (float)tiledef->animation.aspect_h;
 925                 frame_count = size.Y / frame_height;
 926                 int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
 927                 tile->animation_frame_count = frame_count;
 928                 tile->animation_frame_length_ms = frame_length_ms;
 929         }
 930
 931         if (frame_count == 1) {
 932                 tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 933         } else {
 934                 std::ostringstream os(std::ios::binary);
 935                 for (int i = 0; i < frame_count; i++) {
 936                         FrameSpec frame;
 937
 938                         os.str("");
 939                         os << tiledef->name << "^[verticalframe:"
 940                                 << frame_count << ":" << i;
 941
 942                         frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
 943                         if (tile->normal_texture)
 944                                 frame.normal_texture = tsrc->getNormalTexture(os.str());
 945                         tile->frames[i] = frame;
 946                 }
 947         }
 948 }
 949 #endif
 950
 951
 952 void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version)
 953 {
 954         writeU8(os, 1); // version
 955         u16 count = 0;
 956         std::ostringstream os2(std::ios::binary);
 957         for (u32 i = 0; i < m_content_features.size(); i++) {
 958                 if (i == CONTENT_IGNORE || i == CONTENT_AIR
 959                                 || i == CONTENT_UNKNOWN)
 960                         continue;
 961                 ContentFeatures *f = &m_content_features[i];
 962                 if (f->name == "")
 963                         continue;
 964                 writeU16(os2, i);
 965                 // Wrap it in a string to allow different lengths without
 966                 // strict version incompatibilities
 967                 std::ostringstream wrapper_os(std::ios::binary);
 968                 f->serialize(wrapper_os, protocol_version);
 969                 os2<<serializeString(wrapper_os.str());
 970
 971                 assert(count + 1 > count); // must not overflow
 972                 count++;
 973         }
 974         writeU16(os, count);
 975         os << serializeLongString(os2.str());
 976 }
 977
 978
 979 void CNodeDefManager::deSerialize(std::istream &is)
 980 {
 981         clear();
 982         int version = readU8(is);
 983         if (version != 1)
 984                 throw SerializationError("unsupported NodeDefinitionManager version");
 985         u16 count = readU16(is);
 986         std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 987         ContentFeatures f;
 988         for (u16 n = 0; n < count; n++) {
 989                 u16 i = readU16(is2);
 990
 991                 // Read it from the string wrapper
 992                 std::string wrapper = deSerializeString(is2);
 993                 std::istringstream wrapper_is(wrapper, std::ios::binary);
 994                 f.deSerialize(wrapper_is);
 995
 996                 // Check error conditions
 997                 if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
 998                         infostream << "NodeDefManager::deSerialize(): WARNING: "
 999                                 "not changing builtin node " << i << std::endl;
1000                         continue;
1001                 }
1002                 if (f.name == "") {
1003                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1004                                 "received empty name" << std::endl;
1005                         continue;
1006                 }
1007
1008                 // Ignore aliases
1009                 u16 existing_id;
1010                 if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
1011                         infostream << "NodeDefManager::deSerialize(): WARNING: "
1012                                 "already defined with different ID: " << f.name << std::endl;
1013                         continue;
1014                 }
1015
1016                 // All is ok, add node definition with the requested ID
1017                 if (i >= m_content_features.size())
1018                         m_content_features.resize((u32)(i) + 1);
1019                 m_content_features[i] = f;
1020                 addNameIdMapping(i, f.name);
1021                 verbosestream << "deserialized " << f.name << std::endl;
1022         }
1023 }
1024
1025
1026 void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
1027 {
1028         m_name_id_mapping.set(i, name);
1029         m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
1030 }
1031
1032
1033 NodeResolver *CNodeDefManager::getResolver()
1034 {
1035         return &m_resolver;
1036 }
1037
1038
1039 IWritableNodeDefManager *createNodeDefManager()
1040 {
1041         return new CNodeDefManager();
1042 }
1043
1044
1045 //// Serialization of old ContentFeatures formats
1046 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
1047 {
1048         if (protocol_version == 13)
1049         {
1050                 writeU8(os, 5); // version
1051                 os<<serializeString(name);
1052                 writeU16(os, groups.size());
1053                 for (ItemGroupList::const_iterator
1054                                 i = groups.begin(); i != groups.end(); i++) {
1055                         os<<serializeString(i->first);
1056                         writeS16(os, i->second);
1057                 }
1058                 writeU8(os, drawtype);
1059                 writeF1000(os, visual_scale);
1060                 writeU8(os, 6);
1061                 for (u32 i = 0; i < 6; i++)
1062                         tiledef[i].serialize(os, protocol_version);
1063                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1064                 writeU8(os, 2);
1065                 for (u32 i = 0; i < 2; i++)
1066                         tiledef_special[i].serialize(os, protocol_version);
1067                 writeU8(os, alpha);
1068                 writeU8(os, post_effect_color.getAlpha());
1069                 writeU8(os, post_effect_color.getRed());
1070                 writeU8(os, post_effect_color.getGreen());
1071                 writeU8(os, post_effect_color.getBlue());
1072                 writeU8(os, param_type);
1073                 writeU8(os, param_type_2);
1074                 writeU8(os, is_ground_content);
1075                 writeU8(os, light_propagates);
1076                 writeU8(os, sunlight_propagates);
1077                 writeU8(os, walkable);
1078                 writeU8(os, pointable);
1079                 writeU8(os, diggable);
1080                 writeU8(os, climbable);
1081                 writeU8(os, buildable_to);
1082                 os<<serializeString(""); // legacy: used to be metadata_name
1083                 writeU8(os, liquid_type);
1084                 os<<serializeString(liquid_alternative_flowing);
1085                 os<<serializeString(liquid_alternative_source);
1086                 writeU8(os, liquid_viscosity);
1087                 writeU8(os, light_source);
1088                 writeU32(os, damage_per_second);
1089                 node_box.serialize(os, protocol_version);
1090                 selection_box.serialize(os, protocol_version);
1091                 writeU8(os, legacy_facedir_simple);
1092                 writeU8(os, legacy_wallmounted);
1093                 serializeSimpleSoundSpec(sound_footstep, os);
1094                 serializeSimpleSoundSpec(sound_dig, os);
1095                 serializeSimpleSoundSpec(sound_dug, os);
1096         }
1097         else if (protocol_version > 13 && protocol_version < 24) {
1098                 writeU8(os, 6); // version
1099                 os<<serializeString(name);
1100                 writeU16(os, groups.size());
1101                 for (ItemGroupList::const_iterator
1102                         i = groups.begin(); i != groups.end(); i++) {
1103                                 os<<serializeString(i->first);
1104                                 writeS16(os, i->second);
1105                 }
1106                 writeU8(os, drawtype);
1107                 writeF1000(os, visual_scale);
1108                 writeU8(os, 6);
1109                 for (u32 i = 0; i < 6; i++)
1110                         tiledef[i].serialize(os, protocol_version);
1111                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1112                 writeU8(os, 2);
1113                 for (u32 i = 0; i < 2; i++)
1114                         tiledef_special[i].serialize(os, protocol_version);
1115                 writeU8(os, alpha);
1116                 writeU8(os, post_effect_color.getAlpha());
1117                 writeU8(os, post_effect_color.getRed());
1118                 writeU8(os, post_effect_color.getGreen());
1119                 writeU8(os, post_effect_color.getBlue());
1120                 writeU8(os, param_type);
1121                 writeU8(os, param_type_2);
1122                 writeU8(os, is_ground_content);
1123                 writeU8(os, light_propagates);
1124                 writeU8(os, sunlight_propagates);
1125                 writeU8(os, walkable);
1126                 writeU8(os, pointable);
1127                 writeU8(os, diggable);
1128                 writeU8(os, climbable);
1129                 writeU8(os, buildable_to);
1130                 os<<serializeString(""); // legacy: used to be metadata_name
1131                 writeU8(os, liquid_type);
1132                 os<<serializeString(liquid_alternative_flowing);
1133                 os<<serializeString(liquid_alternative_source);
1134                 writeU8(os, liquid_viscosity);
1135                 writeU8(os, liquid_renewable);
1136                 writeU8(os, light_source);
1137                 writeU32(os, damage_per_second);
1138                 node_box.serialize(os, protocol_version);
1139                 selection_box.serialize(os, protocol_version);
1140                 writeU8(os, legacy_facedir_simple);
1141                 writeU8(os, legacy_wallmounted);
1142                 serializeSimpleSoundSpec(sound_footstep, os);
1143                 serializeSimpleSoundSpec(sound_dig, os);
1144                 serializeSimpleSoundSpec(sound_dug, os);
1145                 writeU8(os, rightclickable);
1146                 writeU8(os, drowning);
1147                 writeU8(os, leveled);
1148                 writeU8(os, liquid_range);
1149         } else
1150                 throw SerializationError("ContentFeatures::serialize(): "
1151                         "Unsupported version requested");
1152 }
1153
1154
1155 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1156 {
1157         if (version == 5) // In PROTOCOL_VERSION 13
1158         {
1159                 name = deSerializeString(is);
1160                 groups.clear();
1161                 u32 groups_size = readU16(is);
1162                 for(u32 i=0; i<groups_size; i++){
1163                         std::string name = deSerializeString(is);
1164                         int value = readS16(is);
1165                         groups[name] = value;
1166                 }
1167                 drawtype = (enum NodeDrawType)readU8(is);
1168                 visual_scale = readF1000(is);
1169                 if (readU8(is) != 6)
1170                         throw SerializationError("unsupported tile count");
1171                 for (u32 i = 0; i < 6; i++)
1172                         tiledef[i].deSerialize(is);
1173                 if (readU8(is) != CF_SPECIAL_COUNT)
1174                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1175                 for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
1176                         tiledef_special[i].deSerialize(is);
1177                 alpha = readU8(is);
1178                 post_effect_color.setAlpha(readU8(is));
1179                 post_effect_color.setRed(readU8(is));
1180                 post_effect_color.setGreen(readU8(is));
1181                 post_effect_color.setBlue(readU8(is));
1182                 param_type = (enum ContentParamType)readU8(is);
1183                 param_type_2 = (enum ContentParamType2)readU8(is);
1184                 is_ground_content = readU8(is);
1185                 light_propagates = readU8(is);
1186                 sunlight_propagates = readU8(is);
1187                 walkable = readU8(is);
1188                 pointable = readU8(is);
1189                 diggable = readU8(is);
1190                 climbable = readU8(is);
1191                 buildable_to = readU8(is);
1192                 deSerializeString(is); // legacy: used to be metadata_name
1193                 liquid_type = (enum LiquidType)readU8(is);
1194                 liquid_alternative_flowing = deSerializeString(is);
1195                 liquid_alternative_source = deSerializeString(is);
1196                 liquid_viscosity = readU8(is);
1197                 light_source = readU8(is);
1198                 damage_per_second = readU32(is);
1199                 node_box.deSerialize(is);
1200                 selection_box.deSerialize(is);
1201                 legacy_facedir_simple = readU8(is);
1202                 legacy_wallmounted = readU8(is);
1203                 deSerializeSimpleSoundSpec(sound_footstep, is);
1204                 deSerializeSimpleSoundSpec(sound_dig, is);
1205                 deSerializeSimpleSoundSpec(sound_dug, is);
1206         } else if (version == 6) {
1207                 name = deSerializeString(is);
1208                 groups.clear();
1209                 u32 groups_size = readU16(is);
1210                 for (u32 i = 0; i < groups_size; i++) {
1211                         std::string name = deSerializeString(is);
1212                         int     value = readS16(is);
1213                         groups[name] = value;
1214                 }
1215                 drawtype = (enum NodeDrawType)readU8(is);
1216                 visual_scale = readF1000(is);
1217                 if (readU8(is) != 6)
1218                         throw SerializationError("unsupported tile count");
1219                 for (u32 i = 0; i < 6; i++)
1220                         tiledef[i].deSerialize(is);
1221                 // CF_SPECIAL_COUNT in version 6 = 2
1222                 if (readU8(is) != 2)
1223                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1224                 for (u32 i = 0; i < 2; i++)
1225                         tiledef_special[i].deSerialize(is);
1226                 alpha = readU8(is);
1227                 post_effect_color.setAlpha(readU8(is));
1228                 post_effect_color.setRed(readU8(is));
1229                 post_effect_color.setGreen(readU8(is));
1230                 post_effect_color.setBlue(readU8(is));
1231                 param_type = (enum ContentParamType)readU8(is);
1232                 param_type_2 = (enum ContentParamType2)readU8(is);
1233                 is_ground_content = readU8(is);
1234                 light_propagates = readU8(is);
1235                 sunlight_propagates = readU8(is);
1236                 walkable = readU8(is);
1237                 pointable = readU8(is);
1238                 diggable = readU8(is);
1239                 climbable = readU8(is);
1240                 buildable_to = readU8(is);
1241                 deSerializeString(is); // legacy: used to be metadata_name
1242                 liquid_type = (enum LiquidType)readU8(is);
1243                 liquid_alternative_flowing = deSerializeString(is);
1244                 liquid_alternative_source = deSerializeString(is);
1245                 liquid_viscosity = readU8(is);
1246                 liquid_renewable = readU8(is);
1247                 light_source = readU8(is);
1248                 damage_per_second = readU32(is);
1249                 node_box.deSerialize(is);
1250                 selection_box.deSerialize(is);
1251                 legacy_facedir_simple = readU8(is);
1252                 legacy_wallmounted = readU8(is);
1253                 deSerializeSimpleSoundSpec(sound_footstep, is);
1254                 deSerializeSimpleSoundSpec(sound_dig, is);
1255                 deSerializeSimpleSoundSpec(sound_dug, is);
1256                 rightclickable = readU8(is);
1257                 drowning = readU8(is);
1258                 leveled = readU8(is);
1259                 liquid_range = readU8(is);
1260         } else {
1261                 throw SerializationError("unsupported ContentFeatures version");
1262         }
1263 }
1264
1265 /*
1266         NodeResolver
1267 */
1268
1269 NodeResolver::NodeResolver(INodeDefManager *ndef)
1270 {
1271         m_ndef = ndef;
1272         m_is_node_registration_complete = false;
1273 }
1274
1275
1276 NodeResolver::~NodeResolver()
1277 {
1278         while (!m_pending_contents.empty()) {
1279                 NodeResolveInfo *nri = m_pending_contents.front();
1280                 m_pending_contents.pop_front();
1281                 delete nri;
1282         }
1283 }
1284
1285
1286 int NodeResolver::addNode(std::string n_wanted, std::string n_alt,
1287                 content_t c_fallback, content_t *content)
1288 {
1289         if (m_is_node_registration_complete) {
1290                 if (m_ndef->getId(n_wanted, *content))
1291                         return NR_STATUS_SUCCESS;
1292
1293                 if (n_alt == "" || !m_ndef->getId(n_alt, *content)) {
1294                         *content = c_fallback;
1295                         return NR_STATUS_FAILURE;
1296                 }
1297
1298                 return NR_STATUS_SUCCESS;
1299         } else {
1300                 NodeResolveInfo *nfi = new NodeResolveInfo;
1301                 nfi->n_wanted   = n_wanted;
1302                 nfi->n_alt      = n_alt;
1303                 nfi->c_fallback = c_fallback;
1304                 nfi->output     = content;
1305
1306                 m_pending_contents.push_back(nfi);
1307
1308                 return NR_STATUS_PENDING;
1309         }
1310 }
1311
1312
1313 int NodeResolver::addNodeList(const char *nodename,
1314                 std::vector<content_t> *content_vec)
1315 {
1316         if (m_is_node_registration_complete) {
1317                 std::set<content_t> idset;
1318                 std::set<content_t>::iterator it;
1319
1320                 m_ndef->getIds(nodename, idset);
1321                 for (it = idset.begin(); it != idset.end(); ++it)
1322                         content_vec->push_back(*it);
1323
1324                 return idset.size() ? NR_STATUS_SUCCESS : NR_STATUS_FAILURE;
1325         } else {
1326                 m_pending_content_vecs.push_back(
1327                         std::make_pair(std::string(nodename), content_vec));
1328                 return NR_STATUS_PENDING;
1329         }
1330 }
1331
1332
1333 bool NodeResolver::cancelNode(content_t *content)
1334 {
1335         bool found = false;
1336
1337         std::list<NodeResolveInfo *>::iterator it = m_pending_contents.begin();
1338         while (it != m_pending_contents.end()) {
1339                 NodeResolveInfo *nfi = *it;
1340                 if (nfi->output == content) {
1341                         it = m_pending_contents.erase(it);
1342                         delete nfi;
1343                         found = true;
1344                 }
1345         }
1346
1347         return found;
1348 }
1349
1350
1351 int NodeResolver::cancelNodeList(std::vector<content_t> *content_vec)
1352 {
1353         int num_canceled = 0;
1354
1355         std::list<std::pair<std::string, std::vector<content_t> *> >::iterator it;
1356         it = m_pending_content_vecs.begin();
1357         while (it != m_pending_content_vecs.end()) {
1358                 if (it->second == content_vec) {
1359                         it = m_pending_content_vecs.erase(it);
1360                         num_canceled++;
1361                 }
1362         }
1363
1364         return num_canceled;
1365 }
1366
1367
1368 int NodeResolver::resolveNodes()
1369 {
1370         int num_failed = 0;
1371
1372         //// Resolve pending single node name -> content ID mappings
1373         while (!m_pending_contents.empty()) {
1374                 NodeResolveInfo *nri = m_pending_contents.front();
1375                 m_pending_contents.pop_front();
1376
1377                 bool success = true;
1378                 if (!m_ndef->getId(nri->n_wanted, *nri->output)) {
1379                         success = (nri->n_alt != "") ?
1380                                 m_ndef->getId(nri->n_alt, *nri->output) : false;
1381                 }
1382
1383                 if (!success) {
1384                         *nri->output = nri->c_fallback;
1385                         num_failed++;
1386                         errorstream << "NodeResolver::resolveNodes():  Failed to "
1387                                 "resolve '" << nri->n_wanted;
1388                         if (nri->n_alt != "")
1389                                 errorstream << "' and '" << nri->n_alt;
1390                         errorstream << "'" << std::endl;
1391                 }
1392
1393                 delete nri;
1394         }
1395
1396         //// Resolve pending node names and add to content_t vector
1397         while (!m_pending_content_vecs.empty()) {
1398                 std::pair<std::string, std::vector<content_t> *> item =
1399                         m_pending_content_vecs.front();
1400                 m_pending_content_vecs.pop_front();
1401
1402                 std::string &name = item.first;
1403                 std::vector<content_t> *output = item.second;
1404
1405                 std::set<content_t> idset;
1406                 std::set<content_t>::iterator it;
1407
1408                 m_ndef->getIds(name, idset);
1409                 for (it = idset.begin(); it != idset.end(); ++it)
1410                         output->push_back(*it);
1411
1412                 if (idset.size() == 0) {
1413                         num_failed++;
1414                         errorstream << "NodeResolver::resolveNodes():  Failed to "
1415                                 "resolve '" << name << "'" << std::endl;
1416                 }
1417         }
1418
1419         //// Mark node registration as complete so future resolve
1420         //// requests are satisfied immediately
1421         m_is_node_registration_complete = true;
1422
1423         return num_failed;
1424 }