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/serialize.h"
  31
  32 /*
  33         NodeBox
  34 */
  35
  36 void NodeBox::reset()
  37 {
  38         type = NODEBOX_REGULAR;
  39         // default is empty
  40         fixed.clear();
  41         // default is sign/ladder-like
  42         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  43         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  44         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  45 }
  46
  47 void NodeBox::serialize(std::ostream &os) const
  48 {
  49         writeU8(os, 1); // version
  50         writeU8(os, type);
  51
  52         if(type == NODEBOX_FIXED)
  53         {
  54                 writeU16(os, fixed.size());
  55                 for(std::vector<aabb3f>::const_iterator
  56                                 i = fixed.begin();
  57                                 i != fixed.end(); i++)
  58                 {
  59                         writeV3F1000(os, i->MinEdge);
  60                         writeV3F1000(os, i->MaxEdge);
  61                 }
  62         }
  63         else if(type == NODEBOX_WALLMOUNTED)
  64         {
  65                 writeV3F1000(os, wall_top.MinEdge);
  66                 writeV3F1000(os, wall_top.MaxEdge);
  67                 writeV3F1000(os, wall_bottom.MinEdge);
  68                 writeV3F1000(os, wall_bottom.MaxEdge);
  69                 writeV3F1000(os, wall_side.MinEdge);
  70                 writeV3F1000(os, wall_side.MaxEdge);
  71         }
  72 }
  73
  74 void NodeBox::deSerialize(std::istream &is)
  75 {
  76         int version = readU8(is);
  77         if(version != 1)
  78                 throw SerializationError("unsupported NodeBox version");
  79
  80         reset();
  81
  82         type = (enum NodeBoxType)readU8(is);
  83
  84         if(type == NODEBOX_FIXED)
  85         {
  86                 u16 fixed_count = readU16(is);
  87                 while(fixed_count--)
  88                 {
  89                         aabb3f box;
  90                         box.MinEdge = readV3F1000(is);
  91                         box.MaxEdge = readV3F1000(is);
  92                         fixed.push_back(box);
  93                 }
  94         }
  95         else if(type == NODEBOX_WALLMOUNTED)
  96         {
  97                 wall_top.MinEdge = readV3F1000(is);
  98                 wall_top.MaxEdge = readV3F1000(is);
  99                 wall_bottom.MinEdge = readV3F1000(is);
 100                 wall_bottom.MaxEdge = readV3F1000(is);
 101                 wall_side.MinEdge = readV3F1000(is);
 102                 wall_side.MaxEdge = readV3F1000(is);
 103         }
 104 }
 105
 106 /*
 107         TileDef
 108 */
 109
 110 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 111 {
 112         if(protocol_version >= 17)
 113                 writeU8(os, 1);
 114         else
 115                 writeU8(os, 0);
 116         os<<serializeString(name);
 117         writeU8(os, animation.type);
 118         writeU16(os, animation.aspect_w);
 119         writeU16(os, animation.aspect_h);
 120         writeF1000(os, animation.length);
 121         if(protocol_version >= 17)
 122                 writeU8(os, backface_culling);
 123 }
 124
 125 void TileDef::deSerialize(std::istream &is)
 126 {
 127         int version = readU8(is);
 128         name = deSerializeString(is);
 129         animation.type = (TileAnimationType)readU8(is);
 130         animation.aspect_w = readU16(is);
 131         animation.aspect_h = readU16(is);
 132         animation.length = readF1000(is);
 133         if(version >= 1)
 134                 backface_culling = readU8(is);
 135 }
 136
 137 /*
 138         SimpleSoundSpec serialization
 139 */
 140
 141 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 142                 std::ostream &os)
 143 {
 144         os<<serializeString(ss.name);
 145         writeF1000(os, ss.gain);
 146 }
 147 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 148 {
 149         ss.name = deSerializeString(is);
 150         ss.gain = readF1000(is);
 151 }
 152
 153 /*
 154         ContentFeatures
 155 */
 156
 157 ContentFeatures::ContentFeatures()
 158 {
 159         reset();
 160 }
 161
 162 ContentFeatures::~ContentFeatures()
 163 {
 164 }
 165
 166 void ContentFeatures::reset()
 167 {
 168         /*
 169                 Cached stuff
 170         */
 171 #ifndef SERVER
 172         solidness = 2;
 173         visual_solidness = 0;
 174         backface_culling = true;
 175 #endif
 176         has_on_construct = false;
 177         has_on_destruct = false;
 178         has_after_destruct = false;
 179         /*
 180                 Actual data
 181
 182                 NOTE: Most of this is always overridden by the default values given
 183                       in builtin.lua
 184         */
 185         name = "";
 186         groups.clear();
 187         // Unknown nodes can be dug
 188         groups["dig_immediate"] = 2;
 189         drawtype = NDT_NORMAL;
 190         visual_scale = 1.0;
 191         for(u32 i=0; i<6; i++)
 192                 tiledef[i] = TileDef();
 193         for(u16 j=0; j<CF_SPECIAL_COUNT; j++)
 194                 tiledef_special[j] = TileDef();
 195         alpha = 255;
 196         post_effect_color = video::SColor(0, 0, 0, 0);
 197         param_type = CPT_NONE;
 198         param_type_2 = CPT2_NONE;
 199         is_ground_content = false;
 200         light_propagates = false;
 201         sunlight_propagates = false;
 202         walkable = true;
 203         pointable = true;
 204         diggable = true;
 205         climbable = false;
 206         buildable_to = false;
 207         rightclickable = true;
 208         liquid_type = LIQUID_NONE;
 209         liquid_alternative_flowing = "";
 210         liquid_alternative_source = "";
 211         liquid_viscosity = 0;
 212         liquid_renewable = true;
 213         light_source = 0;
 214         damage_per_second = 0;
 215         node_box = NodeBox();
 216         selection_box = NodeBox();
 217         legacy_facedir_simple = false;
 218         legacy_wallmounted = false;
 219         sound_footstep = SimpleSoundSpec();
 220         sound_dig = SimpleSoundSpec("__group");
 221         sound_dug = SimpleSoundSpec();
 222 }
 223
 224 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 225 {
 226         if(protocol_version < 14){
 227                 serializeOld(os, protocol_version);
 228                 return;
 229         }
 230
 231         writeU8(os, 6); // version
 232         os<<serializeString(name);
 233         writeU16(os, groups.size());
 234         for(ItemGroupList::const_iterator
 235                         i = groups.begin(); i != groups.end(); i++){
 236                 os<<serializeString(i->first);
 237                 writeS16(os, i->second);
 238         }
 239         writeU8(os, drawtype);
 240         writeF1000(os, visual_scale);
 241         writeU8(os, 6);
 242         for(u32 i=0; i<6; i++)
 243                 tiledef[i].serialize(os, protocol_version);
 244         writeU8(os, CF_SPECIAL_COUNT);
 245         for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 246                 tiledef_special[i].serialize(os, protocol_version);
 247         }
 248         writeU8(os, alpha);
 249         writeU8(os, post_effect_color.getAlpha());
 250         writeU8(os, post_effect_color.getRed());
 251         writeU8(os, post_effect_color.getGreen());
 252         writeU8(os, post_effect_color.getBlue());
 253         writeU8(os, param_type);
 254         writeU8(os, param_type_2);
 255         writeU8(os, is_ground_content);
 256         writeU8(os, light_propagates);
 257         writeU8(os, sunlight_propagates);
 258         writeU8(os, walkable);
 259         writeU8(os, pointable);
 260         writeU8(os, diggable);
 261         writeU8(os, climbable);
 262         writeU8(os, buildable_to);
 263         os<<serializeString(""); // legacy: used to be metadata_name
 264         writeU8(os, liquid_type);
 265         os<<serializeString(liquid_alternative_flowing);
 266         os<<serializeString(liquid_alternative_source);
 267         writeU8(os, liquid_viscosity);
 268         writeU8(os, liquid_renewable);
 269         writeU8(os, light_source);
 270         writeU32(os, damage_per_second);
 271         node_box.serialize(os);
 272         selection_box.serialize(os);
 273         writeU8(os, legacy_facedir_simple);
 274         writeU8(os, legacy_wallmounted);
 275         serializeSimpleSoundSpec(sound_footstep, os);
 276         serializeSimpleSoundSpec(sound_dig, os);
 277         serializeSimpleSoundSpec(sound_dug, os);
 278         writeU8(os, rightclickable);
 279         // Stuff below should be moved to correct place in a version that otherwise changes
 280         // the protocol version
 281 }
 282
 283 void ContentFeatures::deSerialize(std::istream &is)
 284 {
 285         int version = readU8(is);
 286         if(version != 6){
 287                 deSerializeOld(is, version);
 288                 return;
 289         }
 290
 291         name = deSerializeString(is);
 292         groups.clear();
 293         u32 groups_size = readU16(is);
 294         for(u32 i=0; i<groups_size; i++){
 295                 std::string name = deSerializeString(is);
 296                 int value = readS16(is);
 297                 groups[name] = value;
 298         }
 299         drawtype = (enum NodeDrawType)readU8(is);
 300         visual_scale = readF1000(is);
 301         if(readU8(is) != 6)
 302                 throw SerializationError("unsupported tile count");
 303         for(u32 i=0; i<6; i++)
 304                 tiledef[i].deSerialize(is);
 305         if(readU8(is) != CF_SPECIAL_COUNT)
 306                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 307         for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 308                 tiledef_special[i].deSerialize(is);
 309         alpha = readU8(is);
 310         post_effect_color.setAlpha(readU8(is));
 311         post_effect_color.setRed(readU8(is));
 312         post_effect_color.setGreen(readU8(is));
 313         post_effect_color.setBlue(readU8(is));
 314         param_type = (enum ContentParamType)readU8(is);
 315         param_type_2 = (enum ContentParamType2)readU8(is);
 316         is_ground_content = readU8(is);
 317         light_propagates = readU8(is);
 318         sunlight_propagates = readU8(is);
 319         walkable = readU8(is);
 320         pointable = readU8(is);
 321         diggable = readU8(is);
 322         climbable = readU8(is);
 323         buildable_to = readU8(is);
 324         deSerializeString(is); // legacy: used to be metadata_name
 325         liquid_type = (enum LiquidType)readU8(is);
 326         liquid_alternative_flowing = deSerializeString(is);
 327         liquid_alternative_source = deSerializeString(is);
 328         liquid_viscosity = readU8(is);
 329         liquid_renewable = readU8(is);
 330         light_source = readU8(is);
 331         damage_per_second = readU32(is);
 332         node_box.deSerialize(is);
 333         selection_box.deSerialize(is);
 334         legacy_facedir_simple = readU8(is);
 335         legacy_wallmounted = readU8(is);
 336         deSerializeSimpleSoundSpec(sound_footstep, is);
 337         deSerializeSimpleSoundSpec(sound_dig, is);
 338         deSerializeSimpleSoundSpec(sound_dug, is);
 339         rightclickable = readU8(is);
 340         // If you add anything here, insert it primarily inside the try-catch
 341         // block to not need to increase the version.
 342         try{
 343                 // Stuff below should be moved to correct place in a version that
 344                 // otherwise changes the protocol version
 345         }catch(SerializationError &e) {};
 346 }
 347
 348 /*
 349         CNodeDefManager
 350 */
 351
 352 class CNodeDefManager: public IWritableNodeDefManager
 353 {
 354 public:
 355         void clear()
 356         {
 357                 m_name_id_mapping.clear();
 358                 m_name_id_mapping_with_aliases.clear();
 359
 360                 for(u16 i=0; i<=MAX_CONTENT; i++)
 361                 {
 362                         ContentFeatures &f = m_content_features[i];
 363                         f.reset(); // Reset to defaults
 364                 }
 365
 366                 // Set CONTENT_AIR
 367                 {
 368                         ContentFeatures f;
 369                         f.name = "air";
 370                         f.drawtype = NDT_AIRLIKE;
 371                         f.param_type = CPT_LIGHT;
 372                         f.light_propagates = true;
 373                         f.sunlight_propagates = true;
 374                         f.walkable = false;
 375                         f.pointable = false;
 376                         f.diggable = false;
 377                         f.buildable_to = true;
 378                         // Insert directly into containers
 379                         content_t c = CONTENT_AIR;
 380                         m_content_features[c] = f;
 381                         addNameIdMapping(c, f.name);
 382                 }
 383                 // Set CONTENT_IGNORE
 384                 {
 385                         ContentFeatures f;
 386                         f.name = "ignore";
 387                         f.drawtype = NDT_AIRLIKE;
 388                         f.param_type = CPT_NONE;
 389                         f.light_propagates = false;
 390                         f.sunlight_propagates = false;
 391                         f.walkable = false;
 392                         f.pointable = false;
 393                         f.diggable = false;
 394                         // A way to remove accidental CONTENT_IGNOREs
 395                         f.buildable_to = true;
 396                         // Insert directly into containers
 397                         content_t c = CONTENT_IGNORE;
 398                         m_content_features[c] = f;
 399                         addNameIdMapping(c, f.name);
 400                 }
 401         }
 402         // CONTENT_IGNORE = not found
 403         content_t getFreeId()
 404         {
 405                 for(u32 i=0; i<=0xffff; i++){
 406                         const ContentFeatures &f = m_content_features[i];
 407                         if(f.name == "")
 408                                 return i;
 409                 }
 410                 return CONTENT_IGNORE;
 411         }
 412         CNodeDefManager()
 413         {
 414                 clear();
 415         }
 416         virtual ~CNodeDefManager()
 417         {
 418         }
 419         virtual IWritableNodeDefManager* clone()
 420         {
 421                 CNodeDefManager *mgr = new CNodeDefManager();
 422                 for(u16 i=0; i<=MAX_CONTENT; i++)
 423                 {
 424                         mgr->set(i, get(i));
 425                 }
 426                 return mgr;
 427         }
 428         virtual const ContentFeatures& get(content_t c) const
 429         {
 430                 assert(c <= MAX_CONTENT);
 431                 return m_content_features[c];
 432         }
 433         virtual const ContentFeatures& get(const MapNode &n) const
 434         {
 435                 return get(n.getContent());
 436         }
 437         virtual bool getId(const std::string &name, content_t &result) const
 438         {
 439                 std::map<std::string, content_t>::const_iterator
 440                         i = m_name_id_mapping_with_aliases.find(name);
 441                 if(i == m_name_id_mapping_with_aliases.end())
 442                         return false;
 443                 result = i->second;
 444                 return true;
 445         }
 446         virtual content_t getId(const std::string &name) const
 447         {
 448                 content_t id = CONTENT_IGNORE;
 449                 getId(name, id);
 450                 return id;
 451         }
 452         virtual void getIds(const std::string &name, std::set<content_t> &result)
 453                         const
 454         {
 455                 if(name.substr(0,6) != "group:"){
 456                         content_t id = CONTENT_IGNORE;
 457                         if(getId(name, id))
 458                                 result.insert(id);
 459                         return;
 460                 }
 461                 std::string group = name.substr(6);
 462                 for(u16 id=0; id<=MAX_CONTENT; id++)
 463                 {
 464                         const ContentFeatures &f = m_content_features[id];
 465                         if(f.name == "") // Quickly discard undefined nodes
 466                                 continue;
 467                         if(itemgroup_get(f.groups, group) != 0)
 468                                 result.insert(id);
 469                 }
 470         }
 471         virtual const ContentFeatures& get(const std::string &name) const
 472         {
 473                 content_t id = CONTENT_IGNORE;
 474                 getId(name, id);
 475                 return get(id);
 476         }
 477         // IWritableNodeDefManager
 478         virtual void set(content_t c, const ContentFeatures &def)
 479         {
 480                 verbosestream<<"registerNode: registering content id \""<<c
 481                                 <<"\": name=\""<<def.name<<"\""<<std::endl;
 482                 assert(c <= MAX_CONTENT);
 483                 // Don't allow redefining CONTENT_IGNORE (but allow air)
 484                 if(def.name == "ignore" || c == CONTENT_IGNORE){
 485                         infostream<<"registerNode: WARNING: Ignoring "
 486                                         <<"CONTENT_IGNORE redefinition"<<std::endl;
 487                         return;
 488                 }
 489                 // Check that the special contents are not redefined as different id
 490                 // because it would mess up everything
 491                 if((def.name == "ignore" && c != CONTENT_IGNORE) ||
 492                         (def.name == "air" && c != CONTENT_AIR)){
 493                         errorstream<<"registerNode: IGNORING ERROR: "
 494                                         <<"trying to register built-in type \""
 495                                         <<def.name<<"\" as different id"<<std::endl;
 496                         return;
 497                 }
 498                 m_content_features[c] = def;
 499                 if(def.name != "")
 500                         addNameIdMapping(c, def.name);
 501         }
 502         virtual content_t set(const std::string &name,
 503                         const ContentFeatures &def)
 504         {
 505                 assert(name == def.name);
 506                 u16 id = CONTENT_IGNORE;
 507                 bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
 508                 if(!found){
 509                         // Get some id
 510                         id = getFreeId();
 511                         if(id == CONTENT_IGNORE)
 512                                 return CONTENT_IGNORE;
 513                         if(name != "")
 514                                 addNameIdMapping(id, name);
 515                 }
 516                 set(id, def);
 517                 return id;
 518         }
 519         virtual content_t allocateDummy(const std::string &name)
 520         {
 521                 assert(name != "");
 522                 ContentFeatures f;
 523                 f.name = name;
 524                 return set(name, f);
 525         }
 526         virtual void updateAliases(IItemDefManager *idef)
 527         {
 528                 std::set<std::string> all = idef->getAll();
 529                 m_name_id_mapping_with_aliases.clear();
 530                 for(std::set<std::string>::iterator
 531                                 i = all.begin(); i != all.end(); i++)
 532                 {
 533                         std::string name = *i;
 534                         std::string convert_to = idef->getAlias(name);
 535                         content_t id;
 536                         if(m_name_id_mapping.getId(convert_to, id))
 537                         {
 538                                 m_name_id_mapping_with_aliases.insert(
 539                                                 std::make_pair(name, id));
 540                         }
 541                 }
 542         }
 543         virtual void updateTextures(ITextureSource *tsrc)
 544         {
 545 #ifndef SERVER
 546                 infostream<<"CNodeDefManager::updateTextures(): Updating "
 547                                 <<"textures in node definitions"<<std::endl;
 548
 549                 bool new_style_water = g_settings->getBool("new_style_water");
 550                 bool new_style_leaves = g_settings->getBool("new_style_leaves");
 551                 bool opaque_water = g_settings->getBool("opaque_water");
 552
 553                 for(u16 i=0; i<=MAX_CONTENT; i++)
 554                 {
 555                         ContentFeatures *f = &m_content_features[i];
 556
 557                         // Figure out the actual tiles to use
 558                         TileDef tiledef[6];
 559                         for(u32 j=0; j<6; j++)
 560                         {
 561                                 tiledef[j] = f->tiledef[j];
 562                                 if(tiledef[j].name == "")
 563                                         tiledef[j].name = "unknown_block.png";
 564                         }
 565
 566                         bool is_liquid = false;
 567                         switch(f->drawtype){
 568                         default:
 569                         case NDT_NORMAL:
 570                                 f->solidness = 2;
 571                                 break;
 572                         case NDT_AIRLIKE:
 573                                 f->solidness = 0;
 574                                 break;
 575                         case NDT_LIQUID:
 576                                 assert(f->liquid_type == LIQUID_SOURCE);
 577                                 if(opaque_water)
 578                                         f->alpha = 255;
 579                                 if(new_style_water){
 580                                         f->solidness = 0;
 581                                 } else {
 582                                         f->solidness = 1;
 583                                         f->backface_culling = false;
 584                                 }
 585                                 is_liquid = true;
 586                                 break;
 587                         case NDT_FLOWINGLIQUID:
 588                                 assert(f->liquid_type == LIQUID_FLOWING);
 589                                 f->solidness = 0;
 590                                 if(opaque_water)
 591                                         f->alpha = 255;
 592                                 is_liquid = true;
 593                                 break;
 594                         case NDT_GLASSLIKE:
 595                                 f->solidness = 0;
 596                                 f->visual_solidness = 1;
 597                                 break;
 598                         case NDT_ALLFACES:
 599                                 f->solidness = 0;
 600                                 f->visual_solidness = 1;
 601                                 break;
 602                         case NDT_ALLFACES_OPTIONAL:
 603                                 if(new_style_leaves){
 604                                         f->drawtype = NDT_ALLFACES;
 605                                         f->solidness = 0;
 606                                         f->visual_solidness = 1;
 607                                 } else {
 608                                         f->drawtype = NDT_NORMAL;
 609                                         f->solidness = 2;
 610                                         for(u32 i=0; i<6; i++){
 611                                                 tiledef[i].name += std::string("^[noalpha");
 612                                         }
 613                                 }
 614                                 break;
 615                         case NDT_PLANTLIKE:
 616                                 f->solidness = 0;
 617                                 f->backface_culling = false;
 618                                 break;
 619                         case NDT_TORCHLIKE:
 620                         case NDT_SIGNLIKE:
 621                         case NDT_FENCELIKE:
 622                         case NDT_RAILLIKE:
 623                         case NDT_NODEBOX:
 624                                 f->solidness = 0;
 625                                 break;
 626                         }
 627
 628                         u8 material_type = 0;
 629                         if(is_liquid){
 630                                 if(f->alpha == 255)
 631                                         material_type = TILE_MATERIAL_LIQUID_OPAQUE;
 632                                 else
 633                                         material_type = TILE_MATERIAL_LIQUID_TRANSPARENT;
 634                         } else{
 635                                 material_type = TILE_MATERIAL_BASIC;
 636                         }
 637
 638                         // Tiles (fill in f->tiles[])
 639                         for(u16 j=0; j<6; j++){
 640                                 // Texture
 641                                 f->tiles[j].texture = tsrc->getTexture(tiledef[j].name);
 642                                 // Alpha
 643                                 f->tiles[j].alpha = f->alpha;
 644                                 // Material type
 645                                 f->tiles[j].material_type = material_type;
 646                                 // Material flags
 647                                 f->tiles[j].material_flags = 0;
 648                                 if(f->backface_culling)
 649                                         f->tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 650                                 if(tiledef[j].animation.type == TAT_VERTICAL_FRAMES)
 651                                         f->tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 652                                 // Animation parameters
 653                                 if(f->tiles[j].material_flags &
 654                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 655                                 {
 656                                         // Get raw texture size to determine frame count by
 657                                         // aspect ratio
 658                                         video::ITexture *t = tsrc->getTextureRaw(tiledef[j].name);
 659                                         v2u32 size = t->getOriginalSize();
 660                                         int frame_height = (float)size.X /
 661                                                         (float)tiledef[j].animation.aspect_w *
 662                                                         (float)tiledef[j].animation.aspect_h;
 663                                         int frame_count = size.Y / frame_height;
 664                                         int frame_length_ms = 1000.0 *
 665                                                         tiledef[j].animation.length / frame_count;
 666                                         f->tiles[j].animation_frame_count = frame_count;
 667                                         f->tiles[j].animation_frame_length_ms = frame_length_ms;
 668
 669                                         // If there are no frames for an animation, switch
 670                                         // animation off (so that having specified an animation
 671                                         // for something but not using it in the texture pack
 672                                         // gives no overhead)
 673                                         if(frame_count == 1){
 674                                                 f->tiles[j].material_flags &=
 675                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 676                                         }
 677                                 }
 678                         }
 679                         // Special tiles (fill in f->special_tiles[])
 680                         for(u16 j=0; j<CF_SPECIAL_COUNT; j++){
 681                                 // Texture
 682                                 f->special_tiles[j].texture =
 683                                                 tsrc->getTexture(f->tiledef_special[j].name);
 684                                 // Alpha
 685                                 f->special_tiles[j].alpha = f->alpha;
 686                                 // Material type
 687                                 f->special_tiles[j].material_type = material_type;
 688                                 // Material flags
 689                                 f->special_tiles[j].material_flags = 0;
 690                                 if(f->tiledef_special[j].backface_culling)
 691                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 692                                 if(f->tiledef_special[j].animation.type == TAT_VERTICAL_FRAMES)
 693                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 694                                 // Animation parameters
 695                                 if(f->special_tiles[j].material_flags &
 696                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 697                                 {
 698                                         // Get raw texture size to determine frame count by
 699                                         // aspect ratio
 700                                         video::ITexture *t = tsrc->getTextureRaw(f->tiledef_special[j].name);
 701                                         v2u32 size = t->getOriginalSize();
 702                                         int frame_height = (float)size.X /
 703                                                         (float)f->tiledef_special[j].animation.aspect_w *
 704                                                         (float)f->tiledef_special[j].animation.aspect_h;
 705                                         int frame_count = size.Y / frame_height;
 706                                         int frame_length_ms = 1000.0 *
 707                                                         f->tiledef_special[j].animation.length / frame_count;
 708                                         f->special_tiles[j].animation_frame_count = frame_count;
 709                                         f->special_tiles[j].animation_frame_length_ms = frame_length_ms;
 710
 711                                         // If there are no frames for an animation, switch
 712                                         // animation off (so that having specified an animation
 713                                         // for something but not using it in the texture pack
 714                                         // gives no overhead)
 715                                         if(frame_count == 1){
 716                                                 f->special_tiles[j].material_flags &=
 717                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 718                                         }
 719                                 }
 720                         }
 721                 }
 722 #endif
 723         }
 724         void serialize(std::ostream &os, u16 protocol_version)
 725         {
 726                 writeU8(os, 1); // version
 727                 u16 count = 0;
 728                 std::ostringstream os2(std::ios::binary);
 729                 for(u16 i=0; i<=MAX_CONTENT; i++)
 730                 {
 731                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 732                                 continue;
 733                         ContentFeatures *f = &m_content_features[i];
 734                         if(f->name == "")
 735                                 continue;
 736                         writeU16(os2, i);
 737                         // Wrap it in a string to allow different lengths without
 738                         // strict version incompatibilities
 739                         std::ostringstream wrapper_os(std::ios::binary);
 740                         f->serialize(wrapper_os, protocol_version);
 741                         os2<<serializeString(wrapper_os.str());
 742                         count++;
 743                 }
 744                 writeU16(os, count);
 745                 os<<serializeLongString(os2.str());
 746         }
 747         void deSerialize(std::istream &is)
 748         {
 749                 clear();
 750                 int version = readU8(is);
 751                 if(version != 1)
 752                         throw SerializationError("unsupported NodeDefinitionManager version");
 753                 u16 count = readU16(is);
 754                 std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 755                 for(u16 n=0; n<count; n++){
 756                         u16 i = readU16(is2);
 757                         if(i > MAX_CONTENT){
 758                                 errorstream<<"ContentFeatures::deSerialize(): "
 759                                                 <<"Too large content id: "<<i<<std::endl;
 760                                 continue;
 761                         }
 762                         /*// Do not deserialize special types
 763                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 764                                 continue;*/
 765                         ContentFeatures *f = &m_content_features[i];
 766                         // Read it from the string wrapper
 767                         std::string wrapper = deSerializeString(is2);
 768                         std::istringstream wrapper_is(wrapper, std::ios::binary);
 769                         f->deSerialize(wrapper_is);
 770                         verbosestream<<"deserialized "<<f->name<<std::endl;
 771                         if(f->name != "")
 772                                 addNameIdMapping(i, f->name);
 773                 }
 774         }
 775 private:
 776         void addNameIdMapping(content_t i, std::string name)
 777         {
 778                 m_name_id_mapping.set(i, name);
 779                 m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
 780         }
 781 private:
 782         // Features indexed by id
 783         ContentFeatures m_content_features[MAX_CONTENT+1];
 784         // A mapping for fast converting back and forth between names and ids
 785         NameIdMapping m_name_id_mapping;
 786         // Like m_name_id_mapping, but only from names to ids, and includes
 787         // item aliases too. Updated by updateAliases()
 788         // Note: Not serialized.
 789         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 790 };
 791
 792 IWritableNodeDefManager* createNodeDefManager()
 793 {
 794         return new CNodeDefManager();
 795 }
 796
 797 /*
 798         Serialization of old ContentFeatures formats
 799 */
 800
 801 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 802 {
 803         if(protocol_version == 13)
 804         {
 805                 writeU8(os, 5); // version
 806                 os<<serializeString(name);
 807                 writeU16(os, groups.size());
 808                 for(ItemGroupList::const_iterator
 809                                 i = groups.begin(); i != groups.end(); i++){
 810                         os<<serializeString(i->first);
 811                         writeS16(os, i->second);
 812                 }
 813                 writeU8(os, drawtype);
 814                 writeF1000(os, visual_scale);
 815                 writeU8(os, 6);
 816                 for(u32 i=0; i<6; i++)
 817                         tiledef[i].serialize(os, protocol_version);
 818                 writeU8(os, CF_SPECIAL_COUNT);
 819                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 820                         tiledef_special[i].serialize(os, protocol_version);
 821                 }
 822                 writeU8(os, alpha);
 823                 writeU8(os, post_effect_color.getAlpha());
 824                 writeU8(os, post_effect_color.getRed());
 825                 writeU8(os, post_effect_color.getGreen());
 826                 writeU8(os, post_effect_color.getBlue());
 827                 writeU8(os, param_type);
 828                 writeU8(os, param_type_2);
 829                 writeU8(os, is_ground_content);
 830                 writeU8(os, light_propagates);
 831                 writeU8(os, sunlight_propagates);
 832                 writeU8(os, walkable);
 833                 writeU8(os, pointable);
 834                 writeU8(os, diggable);
 835                 writeU8(os, climbable);
 836                 writeU8(os, buildable_to);
 837                 os<<serializeString(""); // legacy: used to be metadata_name
 838                 writeU8(os, liquid_type);
 839                 os<<serializeString(liquid_alternative_flowing);
 840                 os<<serializeString(liquid_alternative_source);
 841                 writeU8(os, liquid_viscosity);
 842                 writeU8(os, light_source);
 843                 writeU32(os, damage_per_second);
 844                 node_box.serialize(os);
 845                 selection_box.serialize(os);
 846                 writeU8(os, legacy_facedir_simple);
 847                 writeU8(os, legacy_wallmounted);
 848                 serializeSimpleSoundSpec(sound_footstep, os);
 849                 serializeSimpleSoundSpec(sound_dig, os);
 850                 serializeSimpleSoundSpec(sound_dug, os);
 851         }
 852         else
 853         {
 854                 throw SerializationError("ContentFeatures::serialize(): Unsupported version requested");
 855         }
 856 }
 857
 858 void ContentFeatures::deSerializeOld(std::istream &is, int version)
 859 {
 860         if(version == 5) // In PROTOCOL_VERSION 13
 861         {
 862                 name = deSerializeString(is);
 863                 groups.clear();
 864                 u32 groups_size = readU16(is);
 865                 for(u32 i=0; i<groups_size; i++){
 866                         std::string name = deSerializeString(is);
 867                         int value = readS16(is);
 868                         groups[name] = value;
 869                 }
 870                 drawtype = (enum NodeDrawType)readU8(is);
 871                 visual_scale = readF1000(is);
 872                 if(readU8(is) != 6)
 873                         throw SerializationError("unsupported tile count");
 874                 for(u32 i=0; i<6; i++)
 875                         tiledef[i].deSerialize(is);
 876                 if(readU8(is) != CF_SPECIAL_COUNT)
 877                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
 878                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 879                         tiledef_special[i].deSerialize(is);
 880                 alpha = readU8(is);
 881                 post_effect_color.setAlpha(readU8(is));
 882                 post_effect_color.setRed(readU8(is));
 883                 post_effect_color.setGreen(readU8(is));
 884                 post_effect_color.setBlue(readU8(is));
 885                 param_type = (enum ContentParamType)readU8(is);
 886                 param_type_2 = (enum ContentParamType2)readU8(is);
 887                 is_ground_content = readU8(is);
 888                 light_propagates = readU8(is);
 889                 sunlight_propagates = readU8(is);
 890                 walkable = readU8(is);
 891                 pointable = readU8(is);
 892                 diggable = readU8(is);
 893                 climbable = readU8(is);
 894                 buildable_to = readU8(is);
 895                 deSerializeString(is); // legacy: used to be metadata_name
 896                 liquid_type = (enum LiquidType)readU8(is);
 897                 liquid_alternative_flowing = deSerializeString(is);
 898                 liquid_alternative_source = deSerializeString(is);
 899                 liquid_viscosity = readU8(is);
 900                 light_source = readU8(is);
 901                 damage_per_second = readU32(is);
 902                 node_box.deSerialize(is);
 903                 selection_box.deSerialize(is);
 904                 legacy_facedir_simple = readU8(is);
 905                 legacy_wallmounted = readU8(is);
 906                 deSerializeSimpleSoundSpec(sound_footstep, is);
 907                 deSerializeSimpleSoundSpec(sound_dig, is);
 908                 deSerializeSimpleSoundSpec(sound_dug, is);
 909         }
 910         else
 911         {
 912                 throw SerializationError("unsupported ContentFeatures version");
 913         }
 914 }
 915