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