src/nodedef.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU Lesser General Public License as published by
   7 the Free Software Foundation; either version 2.1 of the License, or
   8 (at your option) any later version.
   9
  10 This program is distributed in the hope that it will be useful,
  11 but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 GNU Lesser General Public License for more details.
  14
  15 You should have received a copy of the GNU Lesser General Public License along
  16 with this program; if not, write to the Free Software Foundation, Inc.,
  17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 */
  19
  20 #include "nodedef.h"
  21
  22 #include "itemdef.h"
  23 #ifndef SERVER
  24 #include "client/tile.h"
  25 #include "mesh.h"
  26 #include <IMeshManipulator.h>
  27 #endif
  28 #include "log.h"
  29 #include "settings.h"
  30 #include "nameidmapping.h"
  31 #include "util/numeric.h"
  32 #include "util/serialize.h"
  33 #include "exceptions.h"
  34 #include "debug.h"
  35 #include "gamedef.h"
  36 #include <fstream> // Used in applyTextureOverrides()
  37
  38 /*
  39         NodeBox
  40 */
  41
  42 void NodeBox::reset()
  43 {
  44         type = NODEBOX_REGULAR;
  45         // default is empty
  46         fixed.clear();
  47         // default is sign/ladder-like
  48         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  49         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  50         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  51 }
  52
  53 void NodeBox::serialize(std::ostream &os, u16 protocol_version) const
  54 {
  55         int version = protocol_version >= 21 ? 2 : 1;
  56         writeU8(os, version);
  57
  58         if (version == 1 && type == NODEBOX_LEVELED)
  59                 writeU8(os, NODEBOX_FIXED);
  60         else
  61                 writeU8(os, type);
  62
  63         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  64         {
  65                 writeU16(os, fixed.size());
  66                 for(std::vector<aabb3f>::const_iterator
  67                                 i = fixed.begin();
  68                                 i != fixed.end(); ++i)
  69                 {
  70                         writeV3F1000(os, i->MinEdge);
  71                         writeV3F1000(os, i->MaxEdge);
  72                 }
  73         }
  74         else if(type == NODEBOX_WALLMOUNTED)
  75         {
  76                 writeV3F1000(os, wall_top.MinEdge);
  77                 writeV3F1000(os, wall_top.MaxEdge);
  78                 writeV3F1000(os, wall_bottom.MinEdge);
  79                 writeV3F1000(os, wall_bottom.MaxEdge);
  80                 writeV3F1000(os, wall_side.MinEdge);
  81                 writeV3F1000(os, wall_side.MaxEdge);
  82         }
  83 }
  84
  85 void NodeBox::deSerialize(std::istream &is)
  86 {
  87         int version = readU8(is);
  88         if(version < 1 || version > 2)
  89                 throw SerializationError("unsupported NodeBox version");
  90
  91         reset();
  92
  93         type = (enum NodeBoxType)readU8(is);
  94
  95         if(type == NODEBOX_FIXED || type == NODEBOX_LEVELED)
  96         {
  97                 u16 fixed_count = readU16(is);
  98                 while(fixed_count--)
  99                 {
 100                         aabb3f box;
 101                         box.MinEdge = readV3F1000(is);
 102                         box.MaxEdge = readV3F1000(is);
 103                         fixed.push_back(box);
 104                 }
 105         }
 106         else if(type == NODEBOX_WALLMOUNTED)
 107         {
 108                 wall_top.MinEdge = readV3F1000(is);
 109                 wall_top.MaxEdge = readV3F1000(is);
 110                 wall_bottom.MinEdge = readV3F1000(is);
 111                 wall_bottom.MaxEdge = readV3F1000(is);
 112                 wall_side.MinEdge = readV3F1000(is);
 113                 wall_side.MaxEdge = readV3F1000(is);
 114         }
 115 }
 116
 117 /*
 118         TileDef
 119 */
 120
 121 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 122 {
 123         if (protocol_version >= 26)
 124                 writeU8(os, 2);
 125         else if (protocol_version >= 17)
 126                 writeU8(os, 1);
 127         else
 128                 writeU8(os, 0);
 129         os<<serializeString(name);
 130         writeU8(os, animation.type);
 131         writeU16(os, animation.aspect_w);
 132         writeU16(os, animation.aspect_h);
 133         writeF1000(os, animation.length);
 134         if (protocol_version >= 17)
 135                 writeU8(os, backface_culling);
 136         if (protocol_version >= 26) {
 137                 writeU8(os, tileable_horizontal);
 138                 writeU8(os, tileable_vertical);
 139         }
 140 }
 141
 142 void TileDef::deSerialize(std::istream &is)
 143 {
 144         int version = readU8(is);
 145         name = deSerializeString(is);
 146         animation.type = (TileAnimationType)readU8(is);
 147         animation.aspect_w = readU16(is);
 148         animation.aspect_h = readU16(is);
 149         animation.length = readF1000(is);
 150         if (version >= 1)
 151                 backface_culling = readU8(is);
 152         if (version >= 2) {
 153                 tileable_horizontal = readU8(is);
 154                 tileable_vertical = readU8(is);
 155         }
 156 }
 157
 158
 159 /*
 160         SimpleSoundSpec serialization
 161 */
 162
 163 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 164                 std::ostream &os)
 165 {
 166         os<<serializeString(ss.name);
 167         writeF1000(os, ss.gain);
 168 }
 169 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 170 {
 171         ss.name = deSerializeString(is);
 172         ss.gain = readF1000(is);
 173 }
 174
 175 /*
 176         ContentFeatures
 177 */
 178
 179 ContentFeatures::ContentFeatures()
 180 {
 181         reset();
 182 }
 183
 184 ContentFeatures::~ContentFeatures()
 185 {
 186 }
 187
 188 void ContentFeatures::reset()
 189 {
 190         /*
 191                 Cached stuff
 192         */
 193 #ifndef SERVER
 194         solidness = 2;
 195         visual_solidness = 0;
 196         backface_culling = true;
 197
 198 #endif
 199         has_on_construct = false;
 200         has_on_destruct = false;
 201         has_after_destruct = false;
 202         /*
 203                 Actual data
 204
 205                 NOTE: Most of this is always overridden by the default values given
 206                       in builtin.lua
 207         */
 208         name = "";
 209         groups.clear();
 210         // Unknown nodes can be dug
 211         groups["dig_immediate"] = 2;
 212         drawtype = NDT_NORMAL;
 213         mesh = "";
 214 #ifndef SERVER
 215         for(u32 i = 0; i < 24; i++)
 216                 mesh_ptr[i] = NULL;
 217         minimap_color = video::SColor(0, 0, 0, 0);
 218 #endif
 219         visual_scale = 1.0;
 220         for(u32 i = 0; i < 6; i++)
 221                 tiledef[i] = TileDef();
 222         for(u16 j = 0; j < CF_SPECIAL_COUNT; j++)
 223                 tiledef_special[j] = TileDef();
 224         alpha = 255;
 225         post_effect_color = video::SColor(0, 0, 0, 0);
 226         param_type = CPT_NONE;
 227         param_type_2 = CPT2_NONE;
 228         is_ground_content = false;
 229         light_propagates = false;
 230         sunlight_propagates = false;
 231         walkable = true;
 232         pointable = true;
 233         diggable = true;
 234         climbable = false;
 235         buildable_to = false;
 236         rightclickable = true;
 237         leveled = 0;
 238         liquid_type = LIQUID_NONE;
 239         liquid_alternative_flowing = "";
 240         liquid_alternative_source = "";
 241         liquid_viscosity = 0;
 242         liquid_renewable = true;
 243         liquid_range = LIQUID_LEVEL_MAX+1;
 244         drowning = 0;
 245         light_source = 0;
 246         damage_per_second = 0;
 247         node_box = NodeBox();
 248         selection_box = NodeBox();
 249         collision_box = NodeBox();
 250         waving = 0;
 251         legacy_facedir_simple = false;
 252         legacy_wallmounted = false;
 253         sound_footstep = SimpleSoundSpec();
 254         sound_dig = SimpleSoundSpec("__group");
 255         sound_dug = SimpleSoundSpec();
 256 }
 257
 258 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version) const
 259 {
 260         if(protocol_version < 24){
 261                 serializeOld(os, protocol_version);
 262                 return;
 263         }
 264
 265         writeU8(os, 7); // version
 266         os<<serializeString(name);
 267         writeU16(os, groups.size());
 268         for(ItemGroupList::const_iterator
 269                         i = groups.begin(); i != groups.end(); ++i){
 270                 os<<serializeString(i->first);
 271                 writeS16(os, i->second);
 272         }
 273         writeU8(os, drawtype);
 274         writeF1000(os, visual_scale);
 275         writeU8(os, 6);
 276         for(u32 i = 0; i < 6; i++)
 277                 tiledef[i].serialize(os, protocol_version);
 278         writeU8(os, CF_SPECIAL_COUNT);
 279         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++){
 280                 tiledef_special[i].serialize(os, protocol_version);
 281         }
 282         writeU8(os, alpha);
 283         writeU8(os, post_effect_color.getAlpha());
 284         writeU8(os, post_effect_color.getRed());
 285         writeU8(os, post_effect_color.getGreen());
 286         writeU8(os, post_effect_color.getBlue());
 287         writeU8(os, param_type);
 288         writeU8(os, param_type_2);
 289         writeU8(os, is_ground_content);
 290         writeU8(os, light_propagates);
 291         writeU8(os, sunlight_propagates);
 292         writeU8(os, walkable);
 293         writeU8(os, pointable);
 294         writeU8(os, diggable);
 295         writeU8(os, climbable);
 296         writeU8(os, buildable_to);
 297         os<<serializeString(""); // legacy: used to be metadata_name
 298         writeU8(os, liquid_type);
 299         os<<serializeString(liquid_alternative_flowing);
 300         os<<serializeString(liquid_alternative_source);
 301         writeU8(os, liquid_viscosity);
 302         writeU8(os, liquid_renewable);
 303         writeU8(os, light_source);
 304         writeU32(os, damage_per_second);
 305         node_box.serialize(os, protocol_version);
 306         selection_box.serialize(os, protocol_version);
 307         writeU8(os, legacy_facedir_simple);
 308         writeU8(os, legacy_wallmounted);
 309         serializeSimpleSoundSpec(sound_footstep, os);
 310         serializeSimpleSoundSpec(sound_dig, os);
 311         serializeSimpleSoundSpec(sound_dug, os);
 312         writeU8(os, rightclickable);
 313         writeU8(os, drowning);
 314         writeU8(os, leveled);
 315         writeU8(os, liquid_range);
 316         writeU8(os, waving);
 317         // Stuff below should be moved to correct place in a version that otherwise changes
 318         // the protocol version
 319         os<<serializeString(mesh);
 320         collision_box.serialize(os, protocol_version);
 321 }
 322
 323 void ContentFeatures::deSerialize(std::istream &is)
 324 {
 325         int version = readU8(is);
 326         if(version != 7){
 327                 deSerializeOld(is, version);
 328                 return;
 329         }
 330
 331         name = deSerializeString(is);
 332         groups.clear();
 333         u32 groups_size = readU16(is);
 334         for(u32 i = 0; i < groups_size; i++){
 335                 std::string name = deSerializeString(is);
 336                 int value = readS16(is);
 337                 groups[name] = value;
 338         }
 339         drawtype = (enum NodeDrawType)readU8(is);
 340         visual_scale = readF1000(is);
 341         if(readU8(is) != 6)
 342                 throw SerializationError("unsupported tile count");
 343         for(u32 i = 0; i < 6; i++)
 344                 tiledef[i].deSerialize(is);
 345         if(readU8(is) != CF_SPECIAL_COUNT)
 346                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 347         for(u32 i = 0; i < CF_SPECIAL_COUNT; i++)
 348                 tiledef_special[i].deSerialize(is);
 349         alpha = readU8(is);
 350         post_effect_color.setAlpha(readU8(is));
 351         post_effect_color.setRed(readU8(is));
 352         post_effect_color.setGreen(readU8(is));
 353         post_effect_color.setBlue(readU8(is));
 354         param_type = (enum ContentParamType)readU8(is);
 355         param_type_2 = (enum ContentParamType2)readU8(is);
 356         is_ground_content = readU8(is);
 357         light_propagates = readU8(is);
 358         sunlight_propagates = readU8(is);
 359         walkable = readU8(is);
 360         pointable = readU8(is);
 361         diggable = readU8(is);
 362         climbable = readU8(is);
 363         buildable_to = readU8(is);
 364         deSerializeString(is); // legacy: used to be metadata_name
 365         liquid_type = (enum LiquidType)readU8(is);
 366         liquid_alternative_flowing = deSerializeString(is);
 367         liquid_alternative_source = deSerializeString(is);
 368         liquid_viscosity = readU8(is);
 369         liquid_renewable = readU8(is);
 370         light_source = readU8(is);
 371         damage_per_second = readU32(is);
 372         node_box.deSerialize(is);
 373         selection_box.deSerialize(is);
 374         legacy_facedir_simple = readU8(is);
 375         legacy_wallmounted = readU8(is);
 376         deSerializeSimpleSoundSpec(sound_footstep, is);
 377         deSerializeSimpleSoundSpec(sound_dig, is);
 378         deSerializeSimpleSoundSpec(sound_dug, is);
 379         rightclickable = readU8(is);
 380         drowning = readU8(is);
 381         leveled = readU8(is);
 382         liquid_range = readU8(is);
 383         waving = readU8(is);
 384         // If you add anything here, insert it primarily inside the try-catch
 385         // block to not need to increase the version.
 386         try{
 387                 // Stuff below should be moved to correct place in a version that
 388                 // otherwise changes the protocol version
 389         mesh = deSerializeString(is);
 390         collision_box.deSerialize(is);
 391         }catch(SerializationError &e) {};
 392 }
 393
 394 /*
 395         CNodeDefManager
 396 */
 397
 398 class CNodeDefManager: public IWritableNodeDefManager {
 399 public:
 400         CNodeDefManager();
 401         virtual ~CNodeDefManager();
 402         void clear();
 403         virtual IWritableNodeDefManager *clone();
 404         inline virtual const ContentFeatures& get(content_t c) const;
 405         inline virtual const ContentFeatures& get(const MapNode &n) const;
 406         virtual bool getId(const std::string &name, content_t &result) const;
 407         virtual content_t getId(const std::string &name) const;
 408         virtual void getIds(const std::string &name, std::set<content_t> &result) const;
 409         virtual const ContentFeatures& get(const std::string &name) const;
 410         content_t allocateId();
 411         virtual content_t set(const std::string &name, const ContentFeatures &def);
 412         virtual content_t allocateDummy(const std::string &name);
 413         virtual void updateAliases(IItemDefManager *idef);
 414         virtual void applyTextureOverrides(const std::string &override_filepath);
 415         virtual void updateTextures(IGameDef *gamedef,
 416                 void (*progress_cbk)(void *progress_args, u32 progress, u32 max_progress),
 417                 void *progress_cbk_args);
 418         void serialize(std::ostream &os, u16 protocol_version) const;
 419         void deSerialize(std::istream &is);
 420
 421         inline virtual bool getNodeRegistrationStatus() const;
 422         inline virtual void setNodeRegistrationStatus(bool completed);
 423
 424         virtual void pendNodeResolve(NodeResolver *nr);
 425         virtual bool cancelNodeResolveCallback(NodeResolver *nr);
 426         virtual void runNodeResolveCallbacks();
 427         virtual void resetNodeResolveState();
 428
 429 private:
 430         void addNameIdMapping(content_t i, std::string name);
 431 #ifndef SERVER
 432         void fillTileAttribs(ITextureSource *tsrc, TileSpec *tile, TileDef *tiledef,
 433                 u32 shader_id, bool use_normal_texture, bool backface_culling,
 434                 u8 alpha, u8 material_type);
 435 #endif
 436
 437         // Features indexed by id
 438         std::vector<ContentFeatures> m_content_features;
 439
 440         // A mapping for fast converting back and forth between names and ids
 441         NameIdMapping m_name_id_mapping;
 442
 443         // Like m_name_id_mapping, but only from names to ids, and includes
 444         // item aliases too. Updated by updateAliases()
 445         // Note: Not serialized.
 446
 447         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 448
 449         // A mapping from groups to a list of content_ts (and their levels)
 450         // that belong to it.  Necessary for a direct lookup in getIds().
 451         // Note: Not serialized.
 452         std::map<std::string, GroupItems> m_group_to_items;
 453
 454         // Next possibly free id
 455         content_t m_next_id;
 456
 457         // NodeResolvers to callback once node registration has ended
 458         std::vector<NodeResolver *> m_pending_resolve_callbacks;
 459
 460         // True when all nodes have been registered
 461         bool m_node_registration_complete;
 462 };
 463
 464
 465 CNodeDefManager::CNodeDefManager()
 466 {
 467         clear();
 468 }
 469
 470
 471 CNodeDefManager::~CNodeDefManager()
 472 {
 473 #ifndef SERVER
 474         for (u32 i = 0; i < m_content_features.size(); i++) {
 475                 ContentFeatures *f = &m_content_features[i];
 476                 for (u32 j = 0; j < 24; j++) {
 477                         if (f->mesh_ptr[j])
 478                                 f->mesh_ptr[j]->drop();
 479                 }
 480         }
 481 #endif
 482 }
 483
 484
 485 void CNodeDefManager::clear()
 486 {
 487         m_content_features.clear();
 488         m_name_id_mapping.clear();
 489         m_name_id_mapping_with_aliases.clear();
 490         m_group_to_items.clear();
 491         m_next_id = 0;
 492
 493         resetNodeResolveState();
 494
 495         u32 initial_length = 0;
 496         initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 497         initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 498         initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 499         m_content_features.resize(initial_length);
 500
 501         // Set CONTENT_UNKNOWN
 502         {
 503                 ContentFeatures f;
 504                 f.name = "unknown";
 505                 // Insert directly into containers
 506                 content_t c = CONTENT_UNKNOWN;
 507                 m_content_features[c] = f;
 508                 addNameIdMapping(c, f.name);
 509         }
 510
 511         // Set CONTENT_AIR
 512         {
 513                 ContentFeatures f;
 514                 f.name                = "air";
 515                 f.drawtype            = NDT_AIRLIKE;
 516                 f.param_type          = CPT_LIGHT;
 517                 f.light_propagates    = true;
 518                 f.sunlight_propagates = true;
 519                 f.walkable            = false;
 520                 f.pointable           = false;
 521                 f.diggable            = false;
 522                 f.buildable_to        = true;
 523                 f.is_ground_content   = true;
 524                 // Insert directly into containers
 525                 content_t c = CONTENT_AIR;
 526                 m_content_features[c] = f;
 527                 addNameIdMapping(c, f.name);
 528         }
 529
 530         // Set CONTENT_IGNORE
 531         {
 532                 ContentFeatures f;
 533                 f.name                = "ignore";
 534                 f.drawtype            = NDT_AIRLIKE;
 535                 f.param_type          = CPT_NONE;
 536                 f.light_propagates    = false;
 537                 f.sunlight_propagates = false;
 538                 f.walkable            = false;
 539                 f.pointable           = false;
 540                 f.diggable            = false;
 541                 f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 542                 f.is_ground_content   = true;
 543                 // Insert directly into containers
 544                 content_t c = CONTENT_IGNORE;
 545                 m_content_features[c] = f;
 546                 addNameIdMapping(c, f.name);
 547         }
 548 }
 549
 550
 551 IWritableNodeDefManager *CNodeDefManager::clone()
 552 {
 553         CNodeDefManager *mgr = new CNodeDefManager();
 554         *mgr = *this;
 555         return mgr;
 556 }
 557
 558
 559 inline const ContentFeatures& CNodeDefManager::get(content_t c) const
 560 {
 561         return c < m_content_features.size()
 562                         ? m_content_features[c] : m_content_features[CONTENT_UNKNOWN];
 563 }
 564
 565
 566 inline const ContentFeatures& CNodeDefManager::get(const MapNode &n) const
 567 {
 568         return get(n.getContent());
 569 }
 570
 571
 572 bool CNodeDefManager::getId(const std::string &name, content_t &result) const
 573 {
 574         std::map<std::string, content_t>::const_iterator
 575                 i = m_name_id_mapping_with_aliases.find(name);
 576         if(i == m_name_id_mapping_with_aliases.end())
 577                 return false;
 578         result = i->second;
 579         return true;
 580 }
 581
 582
 583 content_t CNodeDefManager::getId(const std::string &name) const
 584 {
 585         content_t id = CONTENT_IGNORE;
 586         getId(name, id);
 587         return id;
 588 }
 589
 590
 591 void CNodeDefManager::getIds(const std::string &name,
 592                 std::set<content_t> &result) const
 593 {
 594         //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 595         if (name.substr(0,6) != "group:") {
 596                 content_t id = CONTENT_IGNORE;
 597                 if(getId(name, id))
 598                         result.insert(id);
 599                 return;
 600         }
 601         std::string group = name.substr(6);
 602
 603         std::map<std::string, GroupItems>::const_iterator
 604                 i = m_group_to_items.find(group);
 605         if (i == m_group_to_items.end())
 606                 return;
 607
 608         const GroupItems &items = i->second;
 609         for (GroupItems::const_iterator j = items.begin();
 610                 j != items.end(); ++j) {
 611                 if ((*j).second != 0)
 612                         result.insert((*j).first);
 613         }
 614         //printf("getIds: %dus\n", t.stop());
 615 }
 616
 617
 618 const ContentFeatures& CNodeDefManager::get(const std::string &name) const
 619 {
 620         content_t id = CONTENT_UNKNOWN;
 621         getId(name, id);
 622         return get(id);
 623 }
 624
 625
 626 // returns CONTENT_IGNORE if no free ID found
 627 content_t CNodeDefManager::allocateId()
 628 {
 629         for (content_t id = m_next_id;
 630                         id >= m_next_id; // overflow?
 631                         ++id) {
 632                 while (id >= m_content_features.size()) {
 633                         m_content_features.push_back(ContentFeatures());
 634                 }
 635                 const ContentFeatures &f = m_content_features[id];
 636                 if (f.name == "") {
 637                         m_next_id = id + 1;
 638                         return id;
 639                 }
 640         }
 641         // If we arrive here, an overflow occurred in id.
 642         // That means no ID was found
 643         return CONTENT_IGNORE;
 644 }
 645
 646
 647 // IWritableNodeDefManager
 648 content_t CNodeDefManager::set(const std::string &name, const ContentFeatures &def)
 649 {
 650         // Pre-conditions
 651         assert(name != "");
 652         assert(name == def.name);
 653
 654         // Don't allow redefining ignore (but allow air and unknown)
 655         if (name == "ignore") {
 656                 warningstream << "NodeDefManager: Ignoring "
 657                         "CONTENT_IGNORE redefinition"<<std::endl;
 658                 return CONTENT_IGNORE;
 659         }
 660
 661         content_t id = CONTENT_IGNORE;
 662         if (!m_name_id_mapping.getId(name, id)) { // ignore aliases
 663                 // Get new id
 664                 id = allocateId();
 665                 if (id == CONTENT_IGNORE) {
 666                         warningstream << "NodeDefManager: Absolute "
 667                                 "limit reached" << std::endl;
 668                         return CONTENT_IGNORE;
 669                 }
 670                 assert(id != CONTENT_IGNORE);
 671                 addNameIdMapping(id, name);
 672         }
 673         m_content_features[id] = def;
 674         verbosestream << "NodeDefManager: registering content id \"" << id
 675                 << "\": name=\"" << def.name << "\""<<std::endl;
 676
 677         // Add this content to the list of all groups it belongs to
 678         // FIXME: This should remove a node from groups it no longer
 679         // belongs to when a node is re-registered
 680         for (ItemGroupList::const_iterator i = def.groups.begin();
 681                 i != def.groups.end(); ++i) {
 682                 std::string group_name = i->first;
 683
 684                 std::map<std::string, GroupItems>::iterator
 685                         j = m_group_to_items.find(group_name);
 686                 if (j == m_group_to_items.end()) {
 687                         m_group_to_items[group_name].push_back(
 688                                 std::make_pair(id, i->second));
 689                 } else {
 690                         GroupItems &items = j->second;
 691                         items.push_back(std::make_pair(id, i->second));
 692                 }
 693         }
 694         return id;
 695 }
 696
 697
 698 content_t CNodeDefManager::allocateDummy(const std::string &name)
 699 {
 700         assert(name != "");     // Pre-condition
 701         ContentFeatures f;
 702         f.name = name;
 703         return set(name, f);
 704 }
 705
 706
 707 void CNodeDefManager::updateAliases(IItemDefManager *idef)
 708 {
 709         std::set<std::string> all = idef->getAll();
 710         m_name_id_mapping_with_aliases.clear();
 711         for (std::set<std::string>::iterator
 712                         i = all.begin(); i != all.end(); ++i) {
 713                 std::string name = *i;
 714                 std::string convert_to = idef->getAlias(name);
 715                 content_t id;
 716                 if (m_name_id_mapping.getId(convert_to, id)) {
 717                         m_name_id_mapping_with_aliases.insert(
 718                                 std::make_pair(name, id));
 719                 }
 720         }
 721 }
 722
 723 void CNodeDefManager::applyTextureOverrides(const std::string &override_filepath)
 724 {
 725         infostream << "CNodeDefManager::applyTextureOverrides(): Applying "
 726                 "overrides to textures from " << override_filepath << std::endl;
 727
 728         std::ifstream infile(override_filepath.c_str());
 729         std::string line;
 730         int line_c = 0;
 731         while (std::getline(infile, line)) {
 732                 line_c++;
 733                 if (trim(line) == "")
 734                         continue;
 735                 std::vector<std::string> splitted = str_split(line, ' ');
 736                 if (splitted.size() != 3) {
 737                         errorstream << override_filepath
 738                                 << ":" << line_c << " Could not apply texture override \""
 739                                 << line << "\": Syntax error" << std::endl;
 740                         continue;
 741                 }
 742
 743                 content_t id;
 744                 if (!getId(splitted[0], id)) {
 745                         errorstream << override_filepath
 746                                 << ":" << line_c << " Could not apply texture override \""
 747                                 << line << "\": Unknown node \""
 748                                 << splitted[0] << "\"" << std::endl;
 749                         continue;
 750                 }
 751
 752                 ContentFeatures &nodedef = m_content_features[id];
 753
 754                 if (splitted[1] == "top")
 755                         nodedef.tiledef[0].name = splitted[2];
 756                 else if (splitted[1] == "bottom")
 757                         nodedef.tiledef[1].name = splitted[2];
 758                 else if (splitted[1] == "right")
 759                         nodedef.tiledef[2].name = splitted[2];
 760                 else if (splitted[1] == "left")
 761                         nodedef.tiledef[3].name = splitted[2];
 762                 else if (splitted[1] == "back")
 763                         nodedef.tiledef[4].name = splitted[2];
 764                 else if (splitted[1] == "front")
 765                         nodedef.tiledef[5].name = splitted[2];
 766                 else if (splitted[1] == "all" || splitted[1] == "*")
 767                         for (int i = 0; i < 6; i++)
 768                                 nodedef.tiledef[i].name = splitted[2];
 769                 else if (splitted[1] == "sides")
 770                         for (int i = 2; i < 6; i++)
 771                                 nodedef.tiledef[i].name = splitted[2];
 772                 else {
 773                         errorstream << override_filepath
 774                                 << ":" << line_c << " Could not apply texture override \""
 775                                 << line << "\": Unknown node side \""
 776                                 << splitted[1] << "\"" << std::endl;
 777                         continue;
 778                 }
 779         }
 780 }
 781
 782 void CNodeDefManager::updateTextures(IGameDef *gamedef,
 783         void (*progress_callback)(void *progress_args, u32 progress, u32 max_progress),
 784         void *progress_callback_args)
 785 {
 786 #ifndef SERVER
 787         infostream << "CNodeDefManager::updateTextures(): Updating "
 788                 "textures in node definitions" << std::endl;
 789         ITextureSource *tsrc = gamedef->tsrc();
 790         IShaderSource *shdsrc = gamedef->getShaderSource();
 791         scene::ISceneManager* smgr = gamedef->getSceneManager();
 792         scene::IMeshManipulator* meshmanip = smgr->getMeshManipulator();
 793
 794         bool new_style_water           = g_settings->getBool("new_style_water");
 795         bool connected_glass           = g_settings->getBool("connected_glass");
 796         bool opaque_water              = g_settings->getBool("opaque_water");
 797         bool enable_shaders            = g_settings->getBool("enable_shaders");
 798         bool enable_bumpmapping        = g_settings->getBool("enable_bumpmapping");
 799         bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 800         bool enable_mesh_cache         = g_settings->getBool("enable_mesh_cache");
 801         bool enable_minimap            = g_settings->getBool("enable_minimap");
 802         std::string leaves_style       = g_settings->get("leaves_style");
 803
 804         bool use_normal_texture = enable_shaders &&
 805                 (enable_bumpmapping || enable_parallax_occlusion);
 806
 807         u32 size = m_content_features.size();
 808
 809         for (u32 i = 0; i < size; i++) {
 810                 ContentFeatures *f = &m_content_features[i];
 811
 812                 // minimap pixel color - the average color of a texture
 813                 if (enable_minimap && f->tiledef[0].name != "")
 814                         f->minimap_color = tsrc->getTextureAverageColor(f->tiledef[0].name);
 815
 816                 // Figure out the actual tiles to use
 817                 TileDef tiledef[6];
 818                 for (u32 j = 0; j < 6; j++) {
 819                         tiledef[j] = f->tiledef[j];
 820                         if (tiledef[j].name == "")
 821                                 tiledef[j].name = "unknown_node.png";
 822                 }
 823
 824                 bool is_liquid = false;
 825                 bool is_water_surface = false;
 826
 827                 u8 material_type = (f->alpha == 255) ?
 828                         TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 829
 830                 switch (f->drawtype) {
 831                 default:
 832                 case NDT_NORMAL:
 833                         f->solidness = 2;
 834                         break;
 835                 case NDT_AIRLIKE:
 836                         f->solidness = 0;
 837                         break;
 838                 case NDT_LIQUID:
 839                         assert(f->liquid_type == LIQUID_SOURCE);
 840                         if (opaque_water)
 841                                 f->alpha = 255;
 842                         if (new_style_water){
 843                                 f->solidness = 0;
 844                         } else {
 845                                 f->solidness = 1;
 846                                 f->backface_culling = false;
 847                         }
 848                         is_liquid = true;
 849                         break;
 850                 case NDT_FLOWINGLIQUID:
 851                         assert(f->liquid_type == LIQUID_FLOWING);
 852                         f->solidness = 0;
 853                         if (opaque_water)
 854                                 f->alpha = 255;
 855                         is_liquid = true;
 856                         break;
 857                 case NDT_GLASSLIKE:
 858                         f->solidness = 0;
 859                         f->visual_solidness = 1;
 860                         break;
 861                 case NDT_GLASSLIKE_FRAMED:
 862                         f->solidness = 0;
 863                         f->visual_solidness = 1;
 864                         break;
 865                 case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 866                         f->solidness = 0;
 867                         f->visual_solidness = 1;
 868                         f->drawtype = connected_glass ? NDT_GLASSLIKE_FRAMED : NDT_GLASSLIKE;
 869                         break;
 870                 case NDT_ALLFACES:
 871                         f->solidness = 0;
 872                         f->visual_solidness = 1;
 873                         break;
 874                 case NDT_ALLFACES_OPTIONAL:
 875                         if (leaves_style == "fancy") {
 876                                 f->drawtype = NDT_ALLFACES;
 877                                 f->solidness = 0;
 878                                 f->visual_solidness = 1;
 879                         } else if (leaves_style == "simple") {
 880                                 for (u32 j = 0; j < 6; j++) {
 881                                         if (f->tiledef_special[j].name != "")
 882                                                 tiledef[j].name = f->tiledef_special[j].name;
 883                                 }
 884                                 f->drawtype = NDT_GLASSLIKE;
 885                                 f->solidness = 0;
 886                                 f->visual_solidness = 1;
 887                         } else {
 888                                 f->drawtype = NDT_NORMAL;
 889                                 f->solidness = 2;
 890                                 for (u32 i = 0; i < 6; i++)
 891                                         tiledef[i].name += std::string("^[noalpha");
 892                         }
 893                         if (f->waving == 1)
 894                                 material_type = TILE_MATERIAL_WAVING_LEAVES;
 895                         break;
 896                 case NDT_PLANTLIKE:
 897                         f->solidness = 0;
 898                         f->backface_culling = false;
 899                         if (f->waving == 1)
 900                                 material_type = TILE_MATERIAL_WAVING_PLANTS;
 901                         break;
 902                 case NDT_FIRELIKE:
 903                         f->backface_culling = false;
 904                         f->solidness = 0;
 905                         break;
 906                 case NDT_MESH:
 907                         f->solidness = 0;
 908                         f->backface_culling = false;
 909                         break;
 910                 case NDT_TORCHLIKE:
 911                 case NDT_SIGNLIKE:
 912                 case NDT_FENCELIKE:
 913                 case NDT_RAILLIKE:
 914                 case NDT_NODEBOX:
 915                         f->solidness = 0;
 916                         break;
 917                 }
 918
 919                 if (is_liquid) {
 920                         material_type = (f->alpha == 255) ?
 921                                 TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 922                         if (f->name == "default:water_source")
 923                                 is_water_surface = true;
 924                 }
 925
 926                 u32 tile_shader[6];
 927                 for (u16 j = 0; j < 6; j++) {
 928                         tile_shader[j] = shdsrc->getShader("nodes_shader",
 929                                 material_type, f->drawtype);
 930                 }
 931
 932                 if (is_water_surface) {
 933                         tile_shader[0] = shdsrc->getShader("water_surface_shader",
 934                                 material_type, f->drawtype);
 935                 }
 936
 937                 // Tiles (fill in f->tiles[])
 938                 for (u16 j = 0; j < 6; j++) {
 939                         fillTileAttribs(tsrc, &f->tiles[j], &tiledef[j], tile_shader[j],
 940                                 use_normal_texture, f->backface_culling, f->alpha, material_type);
 941                 }
 942
 943                 // Special tiles (fill in f->special_tiles[])
 944                 for (u16 j = 0; j < CF_SPECIAL_COUNT; j++) {
 945                         fillTileAttribs(tsrc, &f->special_tiles[j], &f->tiledef_special[j],
 946                                 tile_shader[j], use_normal_texture,
 947                                 f->tiledef_special[j].backface_culling, f->alpha, material_type);
 948                 }
 949
 950                 if ((f->drawtype == NDT_MESH) && (f->mesh != "")) {
 951                         // Meshnode drawtype
 952                         // Read the mesh and apply scale
 953                         f->mesh_ptr[0] = gamedef->getMesh(f->mesh);
 954                         if (f->mesh_ptr[0]){
 955                                 v3f scale = v3f(1.0, 1.0, 1.0) * BS * f->visual_scale;
 956                                 scaleMesh(f->mesh_ptr[0], scale);
 957                                 recalculateBoundingBox(f->mesh_ptr[0]);
 958                                 meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 959                         }
 960                 } else if ((f->drawtype == NDT_NODEBOX) &&
 961                                 ((f->node_box.type == NODEBOX_REGULAR) ||
 962                                 (f->node_box.type == NODEBOX_FIXED)) &&
 963                                 (!f->node_box.fixed.empty())) {
 964                         //Convert regular nodebox nodes to meshnodes
 965                         //Change the drawtype and apply scale
 966                         f->drawtype = NDT_MESH;
 967                         f->mesh_ptr[0] = convertNodeboxNodeToMesh(f);
 968                         v3f scale = v3f(1.0, 1.0, 1.0) * f->visual_scale;
 969                         scaleMesh(f->mesh_ptr[0], scale);
 970                         recalculateBoundingBox(f->mesh_ptr[0]);
 971                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 972                 }
 973
 974                 //Cache 6dfacedir and wallmounted rotated clones of meshes
 975                 if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_FACEDIR)) {
 976                         for (u16 j = 1; j < 24; j++) {
 977                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 978                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], j);
 979                                 recalculateBoundingBox(f->mesh_ptr[j]);
 980                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 981                         }
 982                 } else if (enable_mesh_cache && f->mesh_ptr[0] && (f->param_type_2 == CPT2_WALLMOUNTED)) {
 983                         static const u8 wm_to_6d[6] = {20, 0, 16+1, 12+3, 8, 4+2};
 984                         for (u16 j = 1; j < 6; j++) {
 985                                 f->mesh_ptr[j] = cloneMesh(f->mesh_ptr[0]);
 986                                 rotateMeshBy6dFacedir(f->mesh_ptr[j], wm_to_6d[j]);
 987                                 recalculateBoundingBox(f->mesh_ptr[j]);
 988                                 meshmanip->recalculateNormals(f->mesh_ptr[j], true, false);
 989                         }
 990                         rotateMeshBy6dFacedir(f->mesh_ptr[0], wm_to_6d[0]);
 991                         recalculateBoundingBox(f->mesh_ptr[0]);
 992                         meshmanip->recalculateNormals(f->mesh_ptr[0], true, false);
 993                 }
 994
 995                 progress_callback(progress_callback_args, i, size);
 996         }
 997 #endif
 998 }
 999
1000
1001 #ifndef SERVER
1002 void CNodeDefManager::fillTileAttribs(ITextureSource *tsrc, TileSpec *tile,
1003                 TileDef *tiledef, u32 shader_id, bool use_normal_texture,
1004                 bool backface_culling, u8 alpha, u8 material_type)
1005 {
1006         tile->shader_id     = shader_id;
1007         tile->texture       = tsrc->getTextureForMesh(tiledef->name, &tile->texture_id);
1008         tile->alpha         = alpha;
1009         tile->material_type = material_type;
1010
1011         // Normal texture and shader flags texture
1012         if (use_normal_texture) {
1013                 tile->normal_texture = tsrc->getNormalTexture(tiledef->name);
1014         }
1015         tile->flags_texture = tsrc->getShaderFlagsTexture(tile->normal_texture ? true : false);
1016
1017         // Material flags
1018         tile->material_flags = 0;
1019         if (backface_culling)
1020                 tile->material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
1021         if (tiledef->animation.type == TAT_VERTICAL_FRAMES)
1022                 tile->material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
1023         if (tiledef->tileable_horizontal)
1024                 tile->material_flags |= MATERIAL_FLAG_TILEABLE_HORIZONTAL;
1025         if (tiledef->tileable_vertical)
1026                 tile->material_flags |= MATERIAL_FLAG_TILEABLE_VERTICAL;
1027
1028         // Animation parameters
1029         int frame_count = 1;
1030         if (tile->material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
1031                 // Get texture size to determine frame count by aspect ratio
1032                 v2u32 size = tile->texture->getOriginalSize();
1033                 int frame_height = (float)size.X /
1034                                 (float)tiledef->animation.aspect_w *
1035                                 (float)tiledef->animation.aspect_h;
1036                 frame_count = size.Y / frame_height;
1037                 int frame_length_ms = 1000.0 * tiledef->animation.length / frame_count;
1038                 tile->animation_frame_count = frame_count;
1039                 tile->animation_frame_length_ms = frame_length_ms;
1040         }
1041
1042         if (frame_count == 1) {
1043                 tile->material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
1044         } else {
1045                 std::ostringstream os(std::ios::binary);
1046                 tile->frames.resize(frame_count);
1047
1048                 for (int i = 0; i < frame_count; i++) {
1049
1050                         FrameSpec frame;
1051
1052                         os.str("");
1053                         os << tiledef->name << "^[verticalframe:"
1054                                 << frame_count << ":" << i;
1055
1056                         frame.texture = tsrc->getTextureForMesh(os.str(), &frame.texture_id);
1057                         if (tile->normal_texture)
1058                                 frame.normal_texture = tsrc->getNormalTexture(os.str());
1059                         frame.flags_texture = tile->flags_texture;
1060                         tile->frames[i] = frame;
1061                 }
1062         }
1063 }
1064 #endif
1065
1066
1067 void CNodeDefManager::serialize(std::ostream &os, u16 protocol_version) const
1068 {
1069         writeU8(os, 1); // version
1070         u16 count = 0;
1071         std::ostringstream os2(std::ios::binary);
1072         for (u32 i = 0; i < m_content_features.size(); i++) {
1073                 if (i == CONTENT_IGNORE || i == CONTENT_AIR
1074                                 || i == CONTENT_UNKNOWN)
1075                         continue;
1076                 const ContentFeatures *f = &m_content_features[i];
1077                 if (f->name == "")
1078                         continue;
1079                 writeU16(os2, i);
1080                 // Wrap it in a string to allow different lengths without
1081                 // strict version incompatibilities
1082                 std::ostringstream wrapper_os(std::ios::binary);
1083                 f->serialize(wrapper_os, protocol_version);
1084                 os2<<serializeString(wrapper_os.str());
1085
1086                 // must not overflow
1087                 u16 next = count + 1;
1088                 FATAL_ERROR_IF(next < count, "Overflow");
1089                 count++;
1090         }
1091         writeU16(os, count);
1092         os << serializeLongString(os2.str());
1093 }
1094
1095
1096 void CNodeDefManager::deSerialize(std::istream &is)
1097 {
1098         clear();
1099         int version = readU8(is);
1100         if (version != 1)
1101                 throw SerializationError("unsupported NodeDefinitionManager version");
1102         u16 count = readU16(is);
1103         std::istringstream is2(deSerializeLongString(is), std::ios::binary);
1104         ContentFeatures f;
1105         for (u16 n = 0; n < count; n++) {
1106                 u16 i = readU16(is2);
1107
1108                 // Read it from the string wrapper
1109                 std::string wrapper = deSerializeString(is2);
1110                 std::istringstream wrapper_is(wrapper, std::ios::binary);
1111                 f.deSerialize(wrapper_is);
1112
1113                 // Check error conditions
1114                 if (i == CONTENT_IGNORE || i == CONTENT_AIR || i == CONTENT_UNKNOWN) {
1115                         warningstream << "NodeDefManager::deSerialize(): "
1116                                 "not changing builtin node " << i << std::endl;
1117                         continue;
1118                 }
1119                 if (f.name == "") {
1120                         warningstream << "NodeDefManager::deSerialize(): "
1121                                 "received empty name" << std::endl;
1122                         continue;
1123                 }
1124
1125                 // Ignore aliases
1126                 u16 existing_id;
1127                 if (m_name_id_mapping.getId(f.name, existing_id) && i != existing_id) {
1128                         warningstream << "NodeDefManager::deSerialize(): "
1129                                 "already defined with different ID: " << f.name << std::endl;
1130                         continue;
1131                 }
1132
1133                 // All is ok, add node definition with the requested ID
1134                 if (i >= m_content_features.size())
1135                         m_content_features.resize((u32)(i) + 1);
1136                 m_content_features[i] = f;
1137                 addNameIdMapping(i, f.name);
1138                 verbosestream << "deserialized " << f.name << std::endl;
1139         }
1140 }
1141
1142
1143 void CNodeDefManager::addNameIdMapping(content_t i, std::string name)
1144 {
1145         m_name_id_mapping.set(i, name);
1146         m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
1147 }
1148
1149
1150 IWritableNodeDefManager *createNodeDefManager()
1151 {
1152         return new CNodeDefManager();
1153 }
1154
1155
1156 //// Serialization of old ContentFeatures formats
1157 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version) const
1158 {
1159         if (protocol_version == 13)
1160         {
1161                 writeU8(os, 5); // version
1162                 os<<serializeString(name);
1163                 writeU16(os, groups.size());
1164                 for (ItemGroupList::const_iterator
1165                                 i = groups.begin(); i != groups.end(); ++i) {
1166                         os<<serializeString(i->first);
1167                         writeS16(os, i->second);
1168                 }
1169                 writeU8(os, drawtype);
1170                 writeF1000(os, visual_scale);
1171                 writeU8(os, 6);
1172                 for (u32 i = 0; i < 6; i++)
1173                         tiledef[i].serialize(os, protocol_version);
1174                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1175                 writeU8(os, 2);
1176                 for (u32 i = 0; i < 2; i++)
1177                         tiledef_special[i].serialize(os, protocol_version);
1178                 writeU8(os, alpha);
1179                 writeU8(os, post_effect_color.getAlpha());
1180                 writeU8(os, post_effect_color.getRed());
1181                 writeU8(os, post_effect_color.getGreen());
1182                 writeU8(os, post_effect_color.getBlue());
1183                 writeU8(os, param_type);
1184                 writeU8(os, param_type_2);
1185                 writeU8(os, is_ground_content);
1186                 writeU8(os, light_propagates);
1187                 writeU8(os, sunlight_propagates);
1188                 writeU8(os, walkable);
1189                 writeU8(os, pointable);
1190                 writeU8(os, diggable);
1191                 writeU8(os, climbable);
1192                 writeU8(os, buildable_to);
1193                 os<<serializeString(""); // legacy: used to be metadata_name
1194                 writeU8(os, liquid_type);
1195                 os<<serializeString(liquid_alternative_flowing);
1196                 os<<serializeString(liquid_alternative_source);
1197                 writeU8(os, liquid_viscosity);
1198                 writeU8(os, light_source);
1199                 writeU32(os, damage_per_second);
1200                 node_box.serialize(os, protocol_version);
1201                 selection_box.serialize(os, protocol_version);
1202                 writeU8(os, legacy_facedir_simple);
1203                 writeU8(os, legacy_wallmounted);
1204                 serializeSimpleSoundSpec(sound_footstep, os);
1205                 serializeSimpleSoundSpec(sound_dig, os);
1206                 serializeSimpleSoundSpec(sound_dug, os);
1207         }
1208         else if (protocol_version > 13 && protocol_version < 24) {
1209                 writeU8(os, 6); // version
1210                 os<<serializeString(name);
1211                 writeU16(os, groups.size());
1212                 for (ItemGroupList::const_iterator
1213                         i = groups.begin(); i != groups.end(); ++i) {
1214                                 os<<serializeString(i->first);
1215                                 writeS16(os, i->second);
1216                 }
1217                 writeU8(os, drawtype);
1218                 writeF1000(os, visual_scale);
1219                 writeU8(os, 6);
1220                 for (u32 i = 0; i < 6; i++)
1221                         tiledef[i].serialize(os, protocol_version);
1222                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1223                 writeU8(os, 2);
1224                 for (u32 i = 0; i < 2; i++)
1225                         tiledef_special[i].serialize(os, protocol_version);
1226                 writeU8(os, alpha);
1227                 writeU8(os, post_effect_color.getAlpha());
1228                 writeU8(os, post_effect_color.getRed());
1229                 writeU8(os, post_effect_color.getGreen());
1230                 writeU8(os, post_effect_color.getBlue());
1231                 writeU8(os, param_type);
1232                 writeU8(os, param_type_2);
1233                 writeU8(os, is_ground_content);
1234                 writeU8(os, light_propagates);
1235                 writeU8(os, sunlight_propagates);
1236                 writeU8(os, walkable);
1237                 writeU8(os, pointable);
1238                 writeU8(os, diggable);
1239                 writeU8(os, climbable);
1240                 writeU8(os, buildable_to);
1241                 os<<serializeString(""); // legacy: used to be metadata_name
1242                 writeU8(os, liquid_type);
1243                 os<<serializeString(liquid_alternative_flowing);
1244                 os<<serializeString(liquid_alternative_source);
1245                 writeU8(os, liquid_viscosity);
1246                 writeU8(os, liquid_renewable);
1247                 writeU8(os, light_source);
1248                 writeU32(os, damage_per_second);
1249                 node_box.serialize(os, protocol_version);
1250                 selection_box.serialize(os, protocol_version);
1251                 writeU8(os, legacy_facedir_simple);
1252                 writeU8(os, legacy_wallmounted);
1253                 serializeSimpleSoundSpec(sound_footstep, os);
1254                 serializeSimpleSoundSpec(sound_dig, os);
1255                 serializeSimpleSoundSpec(sound_dug, os);
1256                 writeU8(os, rightclickable);
1257                 writeU8(os, drowning);
1258                 writeU8(os, leveled);
1259                 writeU8(os, liquid_range);
1260         } else
1261                 throw SerializationError("ContentFeatures::serialize(): "
1262                         "Unsupported version requested");
1263 }
1264
1265
1266 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1267 {
1268         if (version == 5) // In PROTOCOL_VERSION 13
1269         {
1270                 name = deSerializeString(is);
1271                 groups.clear();
1272                 u32 groups_size = readU16(is);
1273                 for(u32 i=0; i<groups_size; i++){
1274                         std::string name = deSerializeString(is);
1275                         int value = readS16(is);
1276                         groups[name] = value;
1277                 }
1278                 drawtype = (enum NodeDrawType)readU8(is);
1279                 visual_scale = readF1000(is);
1280                 if (readU8(is) != 6)
1281                         throw SerializationError("unsupported tile count");
1282                 for (u32 i = 0; i < 6; i++)
1283                         tiledef[i].deSerialize(is);
1284                 if (readU8(is) != CF_SPECIAL_COUNT)
1285                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1286                 for (u32 i = 0; i < CF_SPECIAL_COUNT; i++)
1287                         tiledef_special[i].deSerialize(is);
1288                 alpha = readU8(is);
1289                 post_effect_color.setAlpha(readU8(is));
1290                 post_effect_color.setRed(readU8(is));
1291                 post_effect_color.setGreen(readU8(is));
1292                 post_effect_color.setBlue(readU8(is));
1293                 param_type = (enum ContentParamType)readU8(is);
1294                 param_type_2 = (enum ContentParamType2)readU8(is);
1295                 is_ground_content = readU8(is);
1296                 light_propagates = readU8(is);
1297                 sunlight_propagates = readU8(is);
1298                 walkable = readU8(is);
1299                 pointable = readU8(is);
1300                 diggable = readU8(is);
1301                 climbable = readU8(is);
1302                 buildable_to = readU8(is);
1303                 deSerializeString(is); // legacy: used to be metadata_name
1304                 liquid_type = (enum LiquidType)readU8(is);
1305                 liquid_alternative_flowing = deSerializeString(is);
1306                 liquid_alternative_source = deSerializeString(is);
1307                 liquid_viscosity = readU8(is);
1308                 light_source = readU8(is);
1309                 damage_per_second = readU32(is);
1310                 node_box.deSerialize(is);
1311                 selection_box.deSerialize(is);
1312                 legacy_facedir_simple = readU8(is);
1313                 legacy_wallmounted = readU8(is);
1314                 deSerializeSimpleSoundSpec(sound_footstep, is);
1315                 deSerializeSimpleSoundSpec(sound_dig, is);
1316                 deSerializeSimpleSoundSpec(sound_dug, is);
1317         } else if (version == 6) {
1318                 name = deSerializeString(is);
1319                 groups.clear();
1320                 u32 groups_size = readU16(is);
1321                 for (u32 i = 0; i < groups_size; i++) {
1322                         std::string name = deSerializeString(is);
1323                         int     value = readS16(is);
1324                         groups[name] = value;
1325                 }
1326                 drawtype = (enum NodeDrawType)readU8(is);
1327                 visual_scale = readF1000(is);
1328                 if (readU8(is) != 6)
1329                         throw SerializationError("unsupported tile count");
1330                 for (u32 i = 0; i < 6; i++)
1331                         tiledef[i].deSerialize(is);
1332                 // CF_SPECIAL_COUNT in version 6 = 2
1333                 if (readU8(is) != 2)
1334                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1335                 for (u32 i = 0; i < 2; i++)
1336                         tiledef_special[i].deSerialize(is);
1337                 alpha = readU8(is);
1338                 post_effect_color.setAlpha(readU8(is));
1339                 post_effect_color.setRed(readU8(is));
1340                 post_effect_color.setGreen(readU8(is));
1341                 post_effect_color.setBlue(readU8(is));
1342                 param_type = (enum ContentParamType)readU8(is);
1343                 param_type_2 = (enum ContentParamType2)readU8(is);
1344                 is_ground_content = readU8(is);
1345                 light_propagates = readU8(is);
1346                 sunlight_propagates = readU8(is);
1347                 walkable = readU8(is);
1348                 pointable = readU8(is);
1349                 diggable = readU8(is);
1350                 climbable = readU8(is);
1351                 buildable_to = readU8(is);
1352                 deSerializeString(is); // legacy: used to be metadata_name
1353                 liquid_type = (enum LiquidType)readU8(is);
1354                 liquid_alternative_flowing = deSerializeString(is);
1355                 liquid_alternative_source = deSerializeString(is);
1356                 liquid_viscosity = readU8(is);
1357                 liquid_renewable = readU8(is);
1358                 light_source = readU8(is);
1359                 damage_per_second = readU32(is);
1360                 node_box.deSerialize(is);
1361                 selection_box.deSerialize(is);
1362                 legacy_facedir_simple = readU8(is);
1363                 legacy_wallmounted = readU8(is);
1364                 deSerializeSimpleSoundSpec(sound_footstep, is);
1365                 deSerializeSimpleSoundSpec(sound_dig, is);
1366                 deSerializeSimpleSoundSpec(sound_dug, is);
1367                 rightclickable = readU8(is);
1368                 drowning = readU8(is);
1369                 leveled = readU8(is);
1370                 liquid_range = readU8(is);
1371         } else {
1372                 throw SerializationError("unsupported ContentFeatures version");
1373         }
1374 }
1375
1376
1377 inline bool CNodeDefManager::getNodeRegistrationStatus() const
1378 {
1379         return m_node_registration_complete;
1380 }
1381
1382
1383 inline void CNodeDefManager::setNodeRegistrationStatus(bool completed)
1384 {
1385         m_node_registration_complete = completed;
1386 }
1387
1388
1389 void CNodeDefManager::pendNodeResolve(NodeResolver *nr)
1390 {
1391         nr->m_ndef = this;
1392         if (m_node_registration_complete)
1393                 nr->nodeResolveInternal();
1394         else
1395                 m_pending_resolve_callbacks.push_back(nr);
1396 }
1397
1398
1399 bool CNodeDefManager::cancelNodeResolveCallback(NodeResolver *nr)
1400 {
1401         size_t len = m_pending_resolve_callbacks.size();
1402         for (size_t i = 0; i != len; i++) {
1403                 if (nr != m_pending_resolve_callbacks[i])
1404                         continue;
1405
1406                 len--;
1407                 m_pending_resolve_callbacks[i] = m_pending_resolve_callbacks[len];
1408                 m_pending_resolve_callbacks.resize(len);
1409                 return true;
1410         }
1411
1412         return false;
1413 }
1414
1415
1416 void CNodeDefManager::runNodeResolveCallbacks()
1417 {
1418         for (size_t i = 0; i != m_pending_resolve_callbacks.size(); i++) {
1419                 NodeResolver *nr = m_pending_resolve_callbacks[i];
1420                 nr->nodeResolveInternal();
1421         }
1422
1423         m_pending_resolve_callbacks.clear();
1424 }
1425
1426
1427 void CNodeDefManager::resetNodeResolveState()
1428 {
1429         m_node_registration_complete = false;
1430         m_pending_resolve_callbacks.clear();
1431 }
1432
1433
1434 ////
1435 //// NodeResolver
1436 ////
1437
1438 NodeResolver::NodeResolver()
1439 {
1440         m_ndef            = NULL;
1441         m_nodenames_idx   = 0;
1442         m_nnlistsizes_idx = 0;
1443         m_resolve_done    = false;
1444
1445         m_nodenames.reserve(16);
1446         m_nnlistsizes.reserve(4);
1447 }
1448
1449
1450 NodeResolver::~NodeResolver()
1451 {
1452         if (!m_resolve_done && m_ndef)
1453                 m_ndef->cancelNodeResolveCallback(this);
1454 }
1455
1456
1457 void NodeResolver::nodeResolveInternal()
1458 {
1459         m_nodenames_idx   = 0;
1460         m_nnlistsizes_idx = 0;
1461
1462         resolveNodeNames();
1463         m_resolve_done = true;
1464
1465         m_nodenames.clear();
1466         m_nnlistsizes.clear();
1467 }
1468
1469
1470 bool NodeResolver::getIdFromNrBacklog(content_t *result_out,
1471         const std::string &node_alt, content_t c_fallback)
1472 {
1473         if (m_nodenames_idx == m_nodenames.size()) {
1474                 *result_out = c_fallback;
1475                 errorstream << "NodeResolver: no more nodes in list" << std::endl;
1476                 return false;
1477         }
1478
1479         content_t c;
1480         std::string name = m_nodenames[m_nodenames_idx++];
1481
1482         bool success = m_ndef->getId(name, c);
1483         if (!success && node_alt != "") {
1484                 name = node_alt;
1485                 success = m_ndef->getId(name, c);
1486         }
1487
1488         if (!success) {
1489                 errorstream << "NodeResolver: failed to resolve node name '" << name
1490                         << "'." << std::endl;
1491                 c = c_fallback;
1492         }
1493
1494         *result_out = c;
1495         return success;
1496 }
1497
1498
1499 bool NodeResolver::getIdsFromNrBacklog(std::vector<content_t> *result_out,
1500         bool all_required, content_t c_fallback)
1501 {
1502         bool success = true;
1503
1504         if (m_nnlistsizes_idx == m_nnlistsizes.size()) {
1505                 errorstream << "NodeResolver: no more node lists" << std::endl;
1506                 return false;
1507         }
1508
1509         size_t length = m_nnlistsizes[m_nnlistsizes_idx++];
1510
1511         while (length--) {
1512                 if (m_nodenames_idx == m_nodenames.size()) {
1513                         errorstream << "NodeResolver: no more nodes in list" << std::endl;
1514                         return false;
1515                 }
1516
1517                 content_t c;
1518                 std::string &name = m_nodenames[m_nodenames_idx++];
1519
1520                 if (name.substr(0,6) != "group:") {
1521                         if (m_ndef->getId(name, c)) {
1522                                 result_out->push_back(c);
1523                         } else if (all_required) {
1524                                 errorstream << "NodeResolver: failed to resolve node name '"
1525                                         << name << "'." << std::endl;
1526                                 result_out->push_back(c_fallback);
1527                                 success = false;
1528                         }
1529                 } else {
1530                         std::set<content_t> cids;
1531                         std::set<content_t>::iterator it;
1532                         m_ndef->getIds(name, cids);
1533                         for (it = cids.begin(); it != cids.end(); ++it)
1534                                 result_out->push_back(*it);
1535                 }
1536         }
1537
1538         return success;
1539 }