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 {
 375 public:
 376         void clear()
 377         {
 378                 m_content_features.clear();
 379                 m_name_id_mapping.clear();
 380                 m_name_id_mapping_with_aliases.clear();
 381                 m_group_to_items.clear();
 382                 m_next_id = 0;
 383
 384                 u32 initial_length = 0;
 385                 initial_length = MYMAX(initial_length, CONTENT_UNKNOWN + 1);
 386                 initial_length = MYMAX(initial_length, CONTENT_AIR + 1);
 387                 initial_length = MYMAX(initial_length, CONTENT_IGNORE + 1);
 388                 m_content_features.resize(initial_length);
 389
 390                 // Set CONTENT_UNKNOWN
 391                 {
 392                         ContentFeatures f;
 393                         f.name = "unknown";
 394                         // Insert directly into containers
 395                         content_t c = CONTENT_UNKNOWN;
 396                         m_content_features[c] = f;
 397                         addNameIdMapping(c, f.name);
 398                 }
 399
 400                 // Set CONTENT_AIR
 401                 {
 402                         ContentFeatures f;
 403                         f.name                = "air";
 404                         f.drawtype            = NDT_AIRLIKE;
 405                         f.param_type          = CPT_LIGHT;
 406                         f.light_propagates    = true;
 407                         f.sunlight_propagates = true;
 408                         f.walkable            = false;
 409                         f.pointable           = false;
 410                         f.diggable            = false;
 411                         f.buildable_to        = true;
 412                         f.is_ground_content   = true;
 413                         // Insert directly into containers
 414                         content_t c = CONTENT_AIR;
 415                         m_content_features[c] = f;
 416                         addNameIdMapping(c, f.name);
 417                 }
 418
 419                 // Set CONTENT_IGNORE
 420                 {
 421                         ContentFeatures f;
 422                         f.name                = "ignore";
 423                         f.drawtype            = NDT_AIRLIKE;
 424                         f.param_type          = CPT_NONE;
 425                         f.light_propagates    = false;
 426                         f.sunlight_propagates = false;
 427                         f.walkable            = false;
 428                         f.pointable           = false;
 429                         f.diggable            = false;
 430                         f.buildable_to        = true; // A way to remove accidental CONTENT_IGNOREs
 431                         f.is_ground_content   = true;
 432                         // Insert directly into containers
 433                         content_t c = CONTENT_IGNORE;
 434                         m_content_features[c] = f;
 435                         addNameIdMapping(c, f.name);
 436                 }
 437         }
 438         CNodeDefManager()
 439         {
 440                 clear();
 441         }
 442         virtual ~CNodeDefManager()
 443         {
 444         }
 445         virtual IWritableNodeDefManager* clone()
 446         {
 447                 CNodeDefManager *mgr = new CNodeDefManager();
 448                 *mgr = *this;
 449                 return mgr;
 450         }
 451         virtual const ContentFeatures& get(content_t c) const
 452         {
 453                 if(c < m_content_features.size())
 454                         return m_content_features[c];
 455                 else
 456                         return m_content_features[CONTENT_UNKNOWN];
 457         }
 458         virtual const ContentFeatures& get(const MapNode &n) const
 459         {
 460                 return get(n.getContent());
 461         }
 462         virtual bool getId(const std::string &name, content_t &result) const
 463         {
 464                 std::map<std::string, content_t>::const_iterator
 465                         i = m_name_id_mapping_with_aliases.find(name);
 466                 if(i == m_name_id_mapping_with_aliases.end())
 467                         return false;
 468                 result = i->second;
 469                 return true;
 470         }
 471         virtual content_t getId(const std::string &name) const
 472         {
 473                 content_t id = CONTENT_IGNORE;
 474                 getId(name, id);
 475                 return id;
 476         }
 477         virtual void getIds(const std::string &name, std::set<content_t> &result)
 478                         const
 479         {
 480                 //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 481                 if(name.substr(0,6) != "group:"){
 482                         content_t id = CONTENT_IGNORE;
 483                         if(getId(name, id))
 484                                 result.insert(id);
 485                         return;
 486                 }
 487                 std::string group = name.substr(6);
 488
 489                 std::map<std::string, GroupItems>::const_iterator
 490                         i = m_group_to_items.find(group);
 491                 if (i == m_group_to_items.end())
 492                         return;
 493
 494                 const GroupItems &items = i->second;
 495                 for (GroupItems::const_iterator j = items.begin();
 496                         j != items.end(); ++j) {
 497                         if ((*j).second != 0)
 498                                 result.insert((*j).first);
 499                 }
 500                 //printf("getIds: %dus\n", t.stop());
 501         }
 502         virtual const ContentFeatures& get(const std::string &name) const
 503         {
 504                 content_t id = CONTENT_UNKNOWN;
 505                 getId(name, id);
 506                 return get(id);
 507         }
 508         // returns CONTENT_IGNORE if no free ID found
 509         content_t allocateId()
 510         {
 511                 for(content_t id = m_next_id;
 512                                 id >= m_next_id; // overflow?
 513                                 ++id){
 514                         while(id >= m_content_features.size()){
 515                                 m_content_features.push_back(ContentFeatures());
 516                         }
 517                         const ContentFeatures &f = m_content_features[id];
 518                         if(f.name == ""){
 519                                 m_next_id = id + 1;
 520                                 return id;
 521                         }
 522                 }
 523                 // If we arrive here, an overflow occurred in id.
 524                 // That means no ID was found
 525                 return CONTENT_IGNORE;
 526         }
 527         // IWritableNodeDefManager
 528         virtual content_t set(const std::string &name,
 529                         const ContentFeatures &def)
 530         {
 531                 assert(name != "");
 532                 assert(name == def.name);
 533
 534                 // Don't allow redefining ignore (but allow air and unknown)
 535                 if(name == "ignore"){
 536                         infostream<<"NodeDefManager: WARNING: Ignoring "
 537                                         <<"CONTENT_IGNORE redefinition"<<std::endl;
 538                         return CONTENT_IGNORE;
 539                 }
 540
 541                 content_t id = CONTENT_IGNORE;
 542                 bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
 543                 if(!found){
 544                         // Get new id
 545                         id = allocateId();
 546                         if(id == CONTENT_IGNORE){
 547                                 infostream<<"NodeDefManager: WARNING: Absolute "
 548                                                 <<"limit reached"<<std::endl;
 549                                 return CONTENT_IGNORE;
 550                         }
 551                         assert(id != CONTENT_IGNORE);
 552                         addNameIdMapping(id, name);
 553                 }
 554                 m_content_features[id] = def;
 555                 verbosestream<<"NodeDefManager: registering content id \""<<id
 556                                 <<"\": name=\""<<def.name<<"\""<<std::endl;
 557
 558                 // Add this content to the list of all groups it belongs to
 559                 // FIXME: This should remove a node from groups it no longer
 560                 // belongs to when a node is re-registered
 561                 for (ItemGroupList::const_iterator i = def.groups.begin();
 562                         i != def.groups.end(); ++i) {
 563                         std::string group_name = i->first;
 564
 565                         std::map<std::string, GroupItems>::iterator
 566                                 j = m_group_to_items.find(group_name);
 567                         if (j == m_group_to_items.end()) {
 568                                 m_group_to_items[group_name].push_back(
 569                                                 std::make_pair(id, i->second));
 570                         } else {
 571                                 GroupItems &items = j->second;
 572                                 items.push_back(std::make_pair(id, i->second));
 573                         }
 574                 }
 575                 return id;
 576         }
 577         virtual content_t allocateDummy(const std::string &name)
 578         {
 579                 assert(name != "");
 580                 ContentFeatures f;
 581                 f.name = name;
 582                 return set(name, f);
 583         }
 584         virtual void updateAliases(IItemDefManager *idef)
 585         {
 586                 std::set<std::string> all = idef->getAll();
 587                 m_name_id_mapping_with_aliases.clear();
 588                 for(std::set<std::string>::iterator
 589                                 i = all.begin(); i != all.end(); i++)
 590                 {
 591                         std::string name = *i;
 592                         std::string convert_to = idef->getAlias(name);
 593                         content_t id;
 594                         if(m_name_id_mapping.getId(convert_to, id))
 595                         {
 596                                 m_name_id_mapping_with_aliases.insert(
 597                                                 std::make_pair(name, id));
 598                         }
 599                 }
 600         }
 601         virtual void updateTextures(ITextureSource *tsrc,
 602                 IShaderSource *shdsrc)
 603         {
 604 #ifndef SERVER
 605                 infostream<<"CNodeDefManager::updateTextures(): Updating "
 606                                 <<"textures in node definitions"<<std::endl;
 607
 608                 bool new_style_water = g_settings->getBool("new_style_water");
 609                 bool new_style_leaves = g_settings->getBool("new_style_leaves");
 610                 bool connected_glass = g_settings->getBool("connected_glass");
 611                 bool opaque_water = g_settings->getBool("opaque_water");
 612                 bool enable_shaders = g_settings->getBool("enable_shaders");
 613                 bool enable_bumpmapping = g_settings->getBool("enable_bumpmapping");
 614                 bool enable_parallax_occlusion = g_settings->getBool("enable_parallax_occlusion");
 615
 616                 for(u32 i=0; i<m_content_features.size(); i++)
 617                 {
 618                         ContentFeatures *f = &m_content_features[i];
 619
 620                         // Figure out the actual tiles to use
 621                         TileDef tiledef[6];
 622                         for(u32 j = 0; j < 6; j++)
 623                         {
 624                                 tiledef[j] = f->tiledef[j];
 625                                 if(tiledef[j].name == "")
 626                                         tiledef[j].name = "unknown_node.png";
 627                         }
 628
 629                         bool is_liquid = false;
 630                         bool is_water_surface = false;
 631
 632                         u8 material_type;
 633                         material_type = (f->alpha == 255) ? TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 634
 635                         switch(f->drawtype){
 636                         default:
 637                         case NDT_NORMAL:
 638                                 f->solidness = 2;
 639                                 break;
 640                         case NDT_AIRLIKE:
 641                                 f->solidness = 0;
 642                                 break;
 643                         case NDT_LIQUID:
 644                                 assert(f->liquid_type == LIQUID_SOURCE);
 645                                 if(opaque_water)
 646                                         f->alpha = 255;
 647                                 if(new_style_water){
 648                                         f->solidness = 0;
 649                                 } else {
 650                                         f->solidness = 1;
 651                                         f->backface_culling = false;
 652                                 }
 653                                 is_liquid = true;
 654                                 break;
 655                         case NDT_FLOWINGLIQUID:
 656                                 assert(f->liquid_type == LIQUID_FLOWING);
 657                                 f->solidness = 0;
 658                                 if(opaque_water)
 659                                         f->alpha = 255;
 660                                 is_liquid = true;
 661                                 break;
 662                         case NDT_GLASSLIKE:
 663                                 f->solidness = 0;
 664                                 f->visual_solidness = 1;
 665                                 break;
 666                         case NDT_GLASSLIKE_FRAMED:
 667                                 f->solidness = 0;
 668                                 f->visual_solidness = 1;
 669                                 break;
 670                         case NDT_GLASSLIKE_FRAMED_OPTIONAL:
 671                                 f->solidness = 0;
 672                                 f->visual_solidness = 1;
 673                                 if (connected_glass) {
 674                                         f->drawtype = NDT_GLASSLIKE_FRAMED;
 675                                 } else {
 676                                         f->drawtype = NDT_GLASSLIKE;
 677                                 }
 678                                 break;
 679                         case NDT_ALLFACES:
 680                                 f->solidness = 0;
 681                                 f->visual_solidness = 1;
 682                                 break;
 683                         case NDT_ALLFACES_OPTIONAL:
 684                                 if(new_style_leaves){
 685                                         f->drawtype = NDT_ALLFACES;
 686                                         f->solidness = 0;
 687                                         f->visual_solidness = 1;
 688                                 } else {
 689                                         f->drawtype = NDT_NORMAL;
 690                                         f->solidness = 2;
 691                                         for(u32 i=0; i<6; i++){
 692                                                 tiledef[i].name += std::string("^[noalpha");
 693                                         }
 694                                 }
 695                                 if (f->waving == 1)
 696                                         material_type = TILE_MATERIAL_WAVING_LEAVES;
 697                                 break;
 698                         case NDT_PLANTLIKE:
 699                                 f->solidness = 0;
 700                                 f->backface_culling = false;
 701                                 if (f->waving == 1)
 702                                         material_type = TILE_MATERIAL_WAVING_PLANTS;
 703                                 break;
 704                         case NDT_FIRELIKE:
 705                                 f->backface_culling = false;
 706                         case NDT_TORCHLIKE:
 707                         case NDT_SIGNLIKE:
 708                         case NDT_FENCELIKE:
 709                         case NDT_RAILLIKE:
 710                         case NDT_NODEBOX:
 711                                 f->solidness = 0;
 712                                 break;
 713                         }
 714
 715                         if (is_liquid){
 716                                 material_type = (f->alpha == 255) ? TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 717                                 if (f->name == "default:water_source")
 718                                         is_water_surface = true;
 719                         }
 720                         u32 tile_shader[6];
 721                         for(u16 j=0; j<6; j++)
 722                                 tile_shader[j] = shdsrc->getShader("nodes_shader",material_type, f->drawtype);
 723
 724                         if (is_water_surface)
 725                                 tile_shader[0] = shdsrc->getShader("water_surface_shader",material_type, f->drawtype);
 726
 727                         // Tiles (fill in f->tiles[])
 728                         for(u16 j = 0; j < 6; j++){
 729                                 // Shader
 730                                 f->tiles[j].shader_id = tile_shader[j];
 731                                 // Texture
 732                                 f->tiles[j].texture = tsrc->getTexture(
 733                                                 tiledef[j].name,
 734                                                 &f->tiles[j].texture_id);
 735                                 // Normal texture
 736                                 if (enable_shaders && (enable_bumpmapping || enable_parallax_occlusion))
 737                                         f->tiles[j].normal_texture = tsrc->getNormalTexture(tiledef[j].name);
 738                                 // Alpha
 739                                 f->tiles[j].alpha = f->alpha;
 740                                 // Material type
 741                                 f->tiles[j].material_type = material_type;
 742                                 // Material flags
 743                                 f->tiles[j].material_flags = 0;
 744                                 if(f->backface_culling)
 745                                         f->tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 746                                 if(tiledef[j].animation.type == TAT_VERTICAL_FRAMES)
 747                                         f->tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 748                                 // Animation parameters
 749                                 int frame_count = 1;
 750                                 if(f->tiles[j].material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
 751                                         // Get texture size to determine frame count by
 752                                         // aspect ratio
 753                                         v2u32 size = f->tiles[j].texture->getOriginalSize();
 754                                         int frame_height = (float)size.X /
 755                                                         (float)tiledef[j].animation.aspect_w *
 756                                                         (float)tiledef[j].animation.aspect_h;
 757                                         frame_count = size.Y / frame_height;
 758                                         int frame_length_ms = 1000.0 *
 759                                                         tiledef[j].animation.length / frame_count;
 760                                         f->tiles[j].animation_frame_count = frame_count;
 761                                         f->tiles[j].animation_frame_length_ms = frame_length_ms;
 762                                 }
 763                                 if(frame_count == 1) {
 764                                         f->tiles[j].material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 765                                 } else {
 766                                         std::ostringstream os(std::ios::binary);
 767                                         for (int i = 0; i < frame_count; i++) {
 768                                                 FrameSpec frame;
 769                                                 os.str("");
 770                                                 os<<tiledef[j].name<<"^[verticalframe:"<<frame_count<<":"<<i;
 771                                                 frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
 772                                                 if (f->tiles[j].normal_texture)
 773                                                         frame.normal_texture = tsrc->getNormalTexture(os.str());
 774                                                 f->tiles[j].frames[i]=frame;
 775                                         }
 776                                 }
 777                         }
 778                         // Special tiles (fill in f->special_tiles[])
 779                         for(u16 j=0; j<CF_SPECIAL_COUNT; j++){
 780                                 // Shader
 781                                 f->special_tiles[j].shader_id = tile_shader[j];
 782                                 // Texture
 783                                 f->special_tiles[j].texture = tsrc->getTexture(
 784                                                 f->tiledef_special[j].name,
 785                                                 &f->special_tiles[j].texture_id);
 786                                 // Normal texture
 787                                 if (enable_shaders && (enable_bumpmapping || enable_parallax_occlusion))
 788                                         f->special_tiles[j].normal_texture = tsrc->getNormalTexture(f->tiledef_special[j].name);
 789                                 // Alpha
 790                                 f->special_tiles[j].alpha = f->alpha;
 791                                 // Material type
 792                                 f->special_tiles[j].material_type = material_type;
 793                                 // Material flags
 794                                 f->special_tiles[j].material_flags = 0;
 795                                 if(f->tiledef_special[j].backface_culling)
 796                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 797                                 if(f->tiledef_special[j].animation.type == TAT_VERTICAL_FRAMES)
 798                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 799                                 // Animation parameters
 800                                 int frame_count = 1;
 801                                 if(f->special_tiles[j].material_flags & MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES) {
 802                                         // Get texture size to determine frame count by
 803                                         // aspect ratio
 804                                         v2u32 size = f->special_tiles[j].texture->getOriginalSize();
 805                                         int frame_height = (float)size.X /
 806                                                         (float)f->tiledef_special[j].animation.aspect_w *
 807                                                         (float)f->tiledef_special[j].animation.aspect_h;
 808                                         frame_count = size.Y / frame_height;
 809                                         int frame_length_ms = 1000.0 *
 810                                                         f->tiledef_special[j].animation.length / frame_count;
 811                                         f->special_tiles[j].animation_frame_count = frame_count;
 812                                         f->special_tiles[j].animation_frame_length_ms = frame_length_ms;
 813                                 }
 814                                 if(frame_count == 1) {
 815                                         f->special_tiles[j].material_flags &= ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 816                                 } else {
 817                                         std::ostringstream os(std::ios::binary);
 818                                         for (int i = 0; i < frame_count; i++) {
 819                                                 FrameSpec frame;
 820                                                 os.str("");
 821                                                 os<<f->tiledef_special[j].name<<"^[verticalframe:"<<frame_count<<":"<<i;
 822                                                 frame.texture = tsrc->getTexture(os.str(), &frame.texture_id);
 823                                                 if (f->special_tiles[j].normal_texture)
 824                                                         frame.normal_texture = tsrc->getNormalTexture(os.str());
 825                                                 f->special_tiles[j].frames[i]=frame;
 826                                         }
 827                                 }
 828                         }
 829                 }
 830 #endif
 831         }
 832         void serialize(std::ostream &os, u16 protocol_version)
 833         {
 834                 writeU8(os, 1); // version
 835                 u16 count = 0;
 836                 std::ostringstream os2(std::ios::binary);
 837                 for(u32 i = 0; i < m_content_features.size(); i++)
 838                 {
 839                         if(i == CONTENT_IGNORE || i == CONTENT_AIR
 840                                         || i == CONTENT_UNKNOWN)
 841                                 continue;
 842                         ContentFeatures *f = &m_content_features[i];
 843                         if(f->name == "")
 844                                 continue;
 845                         writeU16(os2, i);
 846                         // Wrap it in a string to allow different lengths without
 847                         // strict version incompatibilities
 848                         std::ostringstream wrapper_os(std::ios::binary);
 849                         f->serialize(wrapper_os, protocol_version);
 850                         os2<<serializeString(wrapper_os.str());
 851
 852                         assert(count + 1 > count); // must not overflow
 853                         count++;
 854                 }
 855                 writeU16(os, count);
 856                 os<<serializeLongString(os2.str());
 857         }
 858         void deSerialize(std::istream &is)
 859         {
 860                 clear();
 861                 int version = readU8(is);
 862                 if(version != 1)
 863                         throw SerializationError("unsupported NodeDefinitionManager version");
 864                 u16 count = readU16(is);
 865                 std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 866                 ContentFeatures f;
 867                 for(u16 n = 0; n < count; n++){
 868                         u16 i = readU16(is2);
 869
 870                         // Read it from the string wrapper
 871                         std::string wrapper = deSerializeString(is2);
 872                         std::istringstream wrapper_is(wrapper, std::ios::binary);
 873                         f.deSerialize(wrapper_is);
 874
 875                         // Check error conditions
 876                         if(i == CONTENT_IGNORE || i == CONTENT_AIR
 877                                         || i == CONTENT_UNKNOWN){
 878                                 infostream<<"NodeDefManager::deSerialize(): WARNING: "
 879                                         <<"not changing builtin node "<<i
 880                                         <<std::endl;
 881                                 continue;
 882                         }
 883                         if(f.name == ""){
 884                                 infostream<<"NodeDefManager::deSerialize(): WARNING: "
 885                                         <<"received empty name"<<std::endl;
 886                                 continue;
 887                         }
 888                         u16 existing_id;
 889                         bool found = m_name_id_mapping.getId(f.name, existing_id);  // ignore aliases
 890                         if(found && i != existing_id){
 891                                 infostream<<"NodeDefManager::deSerialize(): WARNING: "
 892                                         <<"already defined with different ID: "
 893                                         <<f.name<<std::endl;
 894                                 continue;
 895                         }
 896
 897                         // All is ok, add node definition with the requested ID
 898                         if(i >= m_content_features.size())
 899                                 m_content_features.resize((u32)(i) + 1);
 900                         m_content_features[i] = f;
 901                         addNameIdMapping(i, f.name);
 902                         verbosestream<<"deserialized "<<f.name<<std::endl;
 903                 }
 904         }
 905 private:
 906         void addNameIdMapping(content_t i, std::string name)
 907         {
 908                 m_name_id_mapping.set(i, name);
 909                 m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
 910         }
 911 private:
 912         // Features indexed by id
 913         std::vector<ContentFeatures> m_content_features;
 914         // A mapping for fast converting back and forth between names and ids
 915         NameIdMapping m_name_id_mapping;
 916         // Like m_name_id_mapping, but only from names to ids, and includes
 917         // item aliases too. Updated by updateAliases()
 918         // Note: Not serialized.
 919         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 920         // A mapping from groups to a list of content_ts (and their levels)
 921         // that belong to it.  Necessary for a direct lookup in getIds().
 922         // Note: Not serialized.
 923         std::map<std::string, GroupItems> m_group_to_items;
 924         // Next possibly free id
 925         content_t m_next_id;
 926 };
 927
 928 IWritableNodeDefManager* createNodeDefManager()
 929 {
 930         return new CNodeDefManager();
 931 }
 932
 933 /*
 934         Serialization of old ContentFeatures formats
 935 */
 936
 937 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 938 {
 939         if(protocol_version == 13)
 940         {
 941                 writeU8(os, 5); // version
 942                 os<<serializeString(name);
 943                 writeU16(os, groups.size());
 944                 for(ItemGroupList::const_iterator
 945                                 i = groups.begin(); i != groups.end(); i++){
 946                         os<<serializeString(i->first);
 947                         writeS16(os, i->second);
 948                 }
 949                 writeU8(os, drawtype);
 950                 writeF1000(os, visual_scale);
 951                 writeU8(os, 6);
 952                 for(u32 i = 0; i < 6; i++)
 953                         tiledef[i].serialize(os, protocol_version);
 954                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
 955                 writeU8(os, 2);
 956                 for(u32 i = 0; i < 2; i++){
 957                         tiledef_special[i].serialize(os, protocol_version);
 958                 }
 959                 writeU8(os, alpha);
 960                 writeU8(os, post_effect_color.getAlpha());
 961                 writeU8(os, post_effect_color.getRed());
 962                 writeU8(os, post_effect_color.getGreen());
 963                 writeU8(os, post_effect_color.getBlue());
 964                 writeU8(os, param_type);
 965                 writeU8(os, param_type_2);
 966                 writeU8(os, is_ground_content);
 967                 writeU8(os, light_propagates);
 968                 writeU8(os, sunlight_propagates);
 969                 writeU8(os, walkable);
 970                 writeU8(os, pointable);
 971                 writeU8(os, diggable);
 972                 writeU8(os, climbable);
 973                 writeU8(os, buildable_to);
 974                 os<<serializeString(""); // legacy: used to be metadata_name
 975                 writeU8(os, liquid_type);
 976                 os<<serializeString(liquid_alternative_flowing);
 977                 os<<serializeString(liquid_alternative_source);
 978                 writeU8(os, liquid_viscosity);
 979                 writeU8(os, light_source);
 980                 writeU32(os, damage_per_second);
 981                 node_box.serialize(os, protocol_version);
 982                 selection_box.serialize(os, protocol_version);
 983                 writeU8(os, legacy_facedir_simple);
 984                 writeU8(os, legacy_wallmounted);
 985                 serializeSimpleSoundSpec(sound_footstep, os);
 986                 serializeSimpleSoundSpec(sound_dig, os);
 987                 serializeSimpleSoundSpec(sound_dug, os);
 988         }
 989         else if (protocol_version > 13 && protocol_version < 24) {
 990                 writeU8(os, 6); // version
 991                 os<<serializeString(name);
 992                 writeU16(os, groups.size());
 993                 for(ItemGroupList::const_iterator
 994                         i = groups.begin(); i != groups.end(); i++){
 995                                 os<<serializeString(i->first);
 996                                 writeS16(os, i->second);
 997                 }
 998                 writeU8(os, drawtype);
 999                 writeF1000(os, visual_scale);
1000                 writeU8(os, 6);
1001                 for(u32 i = 0; i < 6; i++)
1002                         tiledef[i].serialize(os, protocol_version);
1003                 //CF_SPECIAL_COUNT = 2 before cf ver. 7 and protocol ver. 24
1004                 writeU8(os, 2);
1005                 for(u32 i = 0; i < 2; i++){
1006                         tiledef_special[i].serialize(os, protocol_version);
1007                 }
1008                 writeU8(os, alpha);
1009                 writeU8(os, post_effect_color.getAlpha());
1010                 writeU8(os, post_effect_color.getRed());
1011                 writeU8(os, post_effect_color.getGreen());
1012                 writeU8(os, post_effect_color.getBlue());
1013                 writeU8(os, param_type);
1014                 writeU8(os, param_type_2);
1015                 writeU8(os, is_ground_content);
1016                 writeU8(os, light_propagates);
1017                 writeU8(os, sunlight_propagates);
1018                 writeU8(os, walkable);
1019                 writeU8(os, pointable);
1020                 writeU8(os, diggable);
1021                 writeU8(os, climbable);
1022                 writeU8(os, buildable_to);
1023                 os<<serializeString(""); // legacy: used to be metadata_name
1024                 writeU8(os, liquid_type);
1025                 os<<serializeString(liquid_alternative_flowing);
1026                 os<<serializeString(liquid_alternative_source);
1027                 writeU8(os, liquid_viscosity);
1028                 writeU8(os, liquid_renewable);
1029                 writeU8(os, light_source);
1030                 writeU32(os, damage_per_second);
1031                 node_box.serialize(os, protocol_version);
1032                 selection_box.serialize(os, protocol_version);
1033                 writeU8(os, legacy_facedir_simple);
1034                 writeU8(os, legacy_wallmounted);
1035                 serializeSimpleSoundSpec(sound_footstep, os);
1036                 serializeSimpleSoundSpec(sound_dig, os);
1037                 serializeSimpleSoundSpec(sound_dug, os);
1038                 writeU8(os, rightclickable);
1039                 writeU8(os, drowning);
1040                 writeU8(os, leveled);
1041                 writeU8(os, liquid_range);
1042         } else
1043                 throw SerializationError("ContentFeatures::serialize(): Unsupported version requested");
1044 }
1045
1046 void ContentFeatures::deSerializeOld(std::istream &is, int version)
1047 {
1048         if(version == 5) // In PROTOCOL_VERSION 13
1049         {
1050                 name = deSerializeString(is);
1051                 groups.clear();
1052                 u32 groups_size = readU16(is);
1053                 for(u32 i=0; i<groups_size; i++){
1054                         std::string name = deSerializeString(is);
1055                         int value = readS16(is);
1056                         groups[name] = value;
1057                 }
1058                 drawtype = (enum NodeDrawType)readU8(is);
1059                 visual_scale = readF1000(is);
1060                 if(readU8(is) != 6)
1061                         throw SerializationError("unsupported tile count");
1062                 for(u32 i=0; i<6; i++)
1063                         tiledef[i].deSerialize(is);
1064                 if(readU8(is) != CF_SPECIAL_COUNT)
1065                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1066                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
1067                         tiledef_special[i].deSerialize(is);
1068                 alpha = readU8(is);
1069                 post_effect_color.setAlpha(readU8(is));
1070                 post_effect_color.setRed(readU8(is));
1071                 post_effect_color.setGreen(readU8(is));
1072                 post_effect_color.setBlue(readU8(is));
1073                 param_type = (enum ContentParamType)readU8(is);
1074                 param_type_2 = (enum ContentParamType2)readU8(is);
1075                 is_ground_content = readU8(is);
1076                 light_propagates = readU8(is);
1077                 sunlight_propagates = readU8(is);
1078                 walkable = readU8(is);
1079                 pointable = readU8(is);
1080                 diggable = readU8(is);
1081                 climbable = readU8(is);
1082                 buildable_to = readU8(is);
1083                 deSerializeString(is); // legacy: used to be metadata_name
1084                 liquid_type = (enum LiquidType)readU8(is);
1085                 liquid_alternative_flowing = deSerializeString(is);
1086                 liquid_alternative_source = deSerializeString(is);
1087                 liquid_viscosity = readU8(is);
1088                 light_source = readU8(is);
1089                 damage_per_second = readU32(is);
1090                 node_box.deSerialize(is);
1091                 selection_box.deSerialize(is);
1092                 legacy_facedir_simple = readU8(is);
1093                 legacy_wallmounted = readU8(is);
1094                 deSerializeSimpleSoundSpec(sound_footstep, is);
1095                 deSerializeSimpleSoundSpec(sound_dig, is);
1096                 deSerializeSimpleSoundSpec(sound_dug, is);
1097         } else if (version == 6) {
1098                 name = deSerializeString(is);
1099                 groups.clear();
1100                 u32 groups_size = readU16(is);
1101                 for(u32 i=0; i<groups_size; i++){
1102                         std::string name = deSerializeString(is);
1103                         int     value = readS16(is);
1104                         groups[name] = value;
1105                 }
1106                 drawtype = (enum NodeDrawType)readU8(is);
1107                 visual_scale = readF1000(is);
1108                 if(readU8(is) != 6)
1109                         throw SerializationError("unsupported tile count");
1110                 for(u32 i=0; i<6; i++)
1111                         tiledef[i].deSerialize(is);
1112                 // CF_SPECIAL_COUNT in version 6 = 2
1113                 if(readU8(is) != 2)
1114                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
1115                 for(u32 i=0; i<2; i++)
1116                         tiledef_special[i].deSerialize(is);
1117                 alpha = readU8(is);
1118                 post_effect_color.setAlpha(readU8(is));
1119                 post_effect_color.setRed(readU8(is));
1120                 post_effect_color.setGreen(readU8(is));
1121                 post_effect_color.setBlue(readU8(is));
1122                 param_type = (enum ContentParamType)readU8(is);
1123                 param_type_2 = (enum ContentParamType2)readU8(is);
1124                 is_ground_content = readU8(is);
1125                 light_propagates = readU8(is);
1126                 sunlight_propagates = readU8(is);
1127                 walkable = readU8(is);
1128                 pointable = readU8(is);
1129                 diggable = readU8(is);
1130                 climbable = readU8(is);
1131                 buildable_to = readU8(is);
1132                 deSerializeString(is); // legacy: used to be metadata_name
1133                 liquid_type = (enum LiquidType)readU8(is);
1134                 liquid_alternative_flowing = deSerializeString(is);
1135                 liquid_alternative_source = deSerializeString(is);
1136                 liquid_viscosity = readU8(is);
1137                 liquid_renewable = readU8(is);
1138                 light_source = readU8(is);
1139                 damage_per_second = readU32(is);
1140                 node_box.deSerialize(is);
1141                 selection_box.deSerialize(is);
1142                 legacy_facedir_simple = readU8(is);
1143                 legacy_wallmounted = readU8(is);
1144                 deSerializeSimpleSoundSpec(sound_footstep, is);
1145                 deSerializeSimpleSoundSpec(sound_dig, is);
1146                 deSerializeSimpleSoundSpec(sound_dug, is);
1147                 rightclickable = readU8(is);
1148                 drowning = readU8(is);
1149                 leveled = readU8(is);
1150                 liquid_range = readU8(is);
1151         } else
1152                 throw SerializationError("unsupported ContentFeatures version");
1153 }