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