src/nodedef.cpp

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