src/nodedef.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 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) const
 111 {
 112         writeU8(os, 0); // version
 113         os<<serializeString(name);
 114         writeU8(os, animation.type);
 115         writeU16(os, animation.aspect_w);
 116         writeU16(os, animation.aspect_h);
 117         writeF1000(os, animation.length);
 118 }
 119
 120 void TileDef::deSerialize(std::istream &is)
 121 {
 122         int version = readU8(is);
 123         if(version != 0)
 124                 throw SerializationError("unsupported TileDef version");
 125         name = deSerializeString(is);
 126         animation.type = (TileAnimationType)readU8(is);
 127         animation.aspect_w = readU16(is);
 128         animation.aspect_h = readU16(is);
 129         animation.length = readF1000(is);
 130 }
 131
 132 /*
 133         SimpleSoundSpec serialization
 134 */
 135
 136 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 137                 std::ostream &os)
 138 {
 139         os<<serializeString(ss.name);
 140         writeF1000(os, ss.gain);
 141 }
 142 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 143 {
 144         ss.name = deSerializeString(is);
 145         ss.gain = readF1000(is);
 146 }
 147
 148 /*
 149         ContentFeatures
 150 */
 151
 152 ContentFeatures::ContentFeatures()
 153 {
 154         reset();
 155 }
 156
 157 ContentFeatures::~ContentFeatures()
 158 {
 159 }
 160
 161 void ContentFeatures::reset()
 162 {
 163         /*
 164                 Cached stuff
 165         */
 166 #ifndef SERVER
 167         solidness = 2;
 168         visual_solidness = 0;
 169         backface_culling = true;
 170 #endif
 171         has_on_construct = false;
 172         has_on_destruct = false;
 173         has_after_destruct = false;
 174         /*
 175                 Actual data
 176
 177                 NOTE: Most of this is always overridden by the default values given
 178                       in builtin.lua
 179         */
 180         name = "";
 181         groups.clear();
 182         // Unknown nodes can be dug
 183         groups["dig_immediate"] = 2;
 184         drawtype = NDT_NORMAL;
 185         visual_scale = 1.0;
 186         for(u32 i=0; i<6; i++)
 187                 tiledef[i] = TileDef();
 188         for(u16 j=0; j<CF_SPECIAL_COUNT; j++)
 189                 tiledef_special[j] = TileDef();
 190         alpha = 255;
 191         post_effect_color = video::SColor(0, 0, 0, 0);
 192         param_type = CPT_NONE;
 193         param_type_2 = CPT2_NONE;
 194         is_ground_content = false;
 195         light_propagates = false;
 196         sunlight_propagates = false;
 197         walkable = true;
 198         pointable = true;
 199         diggable = true;
 200         climbable = false;
 201         buildable_to = false;
 202         rightclickable = true;
 203         liquid_type = LIQUID_NONE;
 204         liquid_alternative_flowing = "";
 205         liquid_alternative_source = "";
 206         liquid_viscosity = 0;
 207         liquid_renewable = true;
 208         light_source = 0;
 209         damage_per_second = 0;
 210         node_box = NodeBox();
 211         selection_box = NodeBox();
 212         legacy_facedir_simple = false;
 213         legacy_wallmounted = false;
 214         sound_footstep = SimpleSoundSpec();
 215         sound_dig = SimpleSoundSpec("__group");
 216         sound_dug = SimpleSoundSpec();
 217 }
 218
 219 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 220 {
 221         if(protocol_version < 14){
 222                 serializeOld(os, protocol_version);
 223                 return;
 224         }
 225
 226         writeU8(os, 6); // version
 227         os<<serializeString(name);
 228         writeU16(os, groups.size());
 229         for(ItemGroupList::const_iterator
 230                         i = groups.begin(); i != groups.end(); i++){
 231                 os<<serializeString(i->first);
 232                 writeS16(os, i->second);
 233         }
 234         writeU8(os, drawtype);
 235         writeF1000(os, visual_scale);
 236         writeU8(os, 6);
 237         for(u32 i=0; i<6; i++)
 238                 tiledef[i].serialize(os);
 239         writeU8(os, CF_SPECIAL_COUNT);
 240         for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 241                 tiledef_special[i].serialize(os);
 242         }
 243         writeU8(os, alpha);
 244         writeU8(os, post_effect_color.getAlpha());
 245         writeU8(os, post_effect_color.getRed());
 246         writeU8(os, post_effect_color.getGreen());
 247         writeU8(os, post_effect_color.getBlue());
 248         writeU8(os, param_type);
 249         writeU8(os, param_type_2);
 250         writeU8(os, is_ground_content);
 251         writeU8(os, light_propagates);
 252         writeU8(os, sunlight_propagates);
 253         writeU8(os, walkable);
 254         writeU8(os, pointable);
 255         writeU8(os, diggable);
 256         writeU8(os, climbable);
 257         writeU8(os, buildable_to);
 258         os<<serializeString(""); // legacy: used to be metadata_name
 259         writeU8(os, liquid_type);
 260         os<<serializeString(liquid_alternative_flowing);
 261         os<<serializeString(liquid_alternative_source);
 262         writeU8(os, liquid_viscosity);
 263         writeU8(os, liquid_renewable);
 264         writeU8(os, light_source);
 265         writeU32(os, damage_per_second);
 266         node_box.serialize(os);
 267         selection_box.serialize(os);
 268         writeU8(os, legacy_facedir_simple);
 269         writeU8(os, legacy_wallmounted);
 270         serializeSimpleSoundSpec(sound_footstep, os);
 271         serializeSimpleSoundSpec(sound_dig, os);
 272         serializeSimpleSoundSpec(sound_dug, os);
 273         // Stuff below should be moved to correct place in a version that otherwise changes
 274         // the protocol version
 275         writeU8(os, rightclickable);
 276 }
 277
 278 void ContentFeatures::deSerialize(std::istream &is)
 279 {
 280         int version = readU8(is);
 281         if(version != 6){
 282                 deSerializeOld(is, version);
 283                 return;
 284         }
 285
 286         name = deSerializeString(is);
 287         groups.clear();
 288         u32 groups_size = readU16(is);
 289         for(u32 i=0; i<groups_size; i++){
 290                 std::string name = deSerializeString(is);
 291                 int value = readS16(is);
 292                 groups[name] = value;
 293         }
 294         drawtype = (enum NodeDrawType)readU8(is);
 295         visual_scale = readF1000(is);
 296         if(readU8(is) != 6)
 297                 throw SerializationError("unsupported tile count");
 298         for(u32 i=0; i<6; i++)
 299                 tiledef[i].deSerialize(is);
 300         if(readU8(is) != CF_SPECIAL_COUNT)
 301                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 302         for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 303                 tiledef_special[i].deSerialize(is);
 304         alpha = readU8(is);
 305         post_effect_color.setAlpha(readU8(is));
 306         post_effect_color.setRed(readU8(is));
 307         post_effect_color.setGreen(readU8(is));
 308         post_effect_color.setBlue(readU8(is));
 309         param_type = (enum ContentParamType)readU8(is);
 310         param_type_2 = (enum ContentParamType2)readU8(is);
 311         is_ground_content = readU8(is);
 312         light_propagates = readU8(is);
 313         sunlight_propagates = readU8(is);
 314         walkable = readU8(is);
 315         pointable = readU8(is);
 316         diggable = readU8(is);
 317         climbable = readU8(is);
 318         buildable_to = readU8(is);
 319         deSerializeString(is); // legacy: used to be metadata_name
 320         liquid_type = (enum LiquidType)readU8(is);
 321         liquid_alternative_flowing = deSerializeString(is);
 322         liquid_alternative_source = deSerializeString(is);
 323         liquid_viscosity = readU8(is);
 324         liquid_renewable = readU8(is);
 325         light_source = readU8(is);
 326         damage_per_second = readU32(is);
 327         node_box.deSerialize(is);
 328         selection_box.deSerialize(is);
 329         legacy_facedir_simple = readU8(is);
 330         legacy_wallmounted = readU8(is);
 331         deSerializeSimpleSoundSpec(sound_footstep, is);
 332         deSerializeSimpleSoundSpec(sound_dig, is);
 333         deSerializeSimpleSoundSpec(sound_dug, is);
 334         // If you add anything here, insert it primarily inside the try-catch
 335         // block to not need to increase the version.
 336         try{
 337                 // Stuff below should be moved to correct place in a version that
 338                 // otherwise changes the protocol version
 339                 rightclickable = readU8(is);
 340         }catch(SerializationError &e) {};
 341 }
 342
 343 /*
 344         CNodeDefManager
 345 */
 346
 347 class CNodeDefManager: public IWritableNodeDefManager
 348 {
 349 public:
 350         void clear()
 351         {
 352                 m_name_id_mapping.clear();
 353                 m_name_id_mapping_with_aliases.clear();
 354
 355                 for(u16 i=0; i<=MAX_CONTENT; i++)
 356                 {
 357                         ContentFeatures &f = m_content_features[i];
 358                         f.reset(); // Reset to defaults
 359                 }
 360
 361                 // Set CONTENT_AIR
 362                 {
 363                         ContentFeatures f;
 364                         f.name = "air";
 365                         f.drawtype = NDT_AIRLIKE;
 366                         f.param_type = CPT_LIGHT;
 367                         f.light_propagates = true;
 368                         f.sunlight_propagates = true;
 369                         f.walkable = false;
 370                         f.pointable = false;
 371                         f.diggable = false;
 372                         f.buildable_to = true;
 373                         // Insert directly into containers
 374                         content_t c = CONTENT_AIR;
 375                         m_content_features[c] = f;
 376                         addNameIdMapping(c, f.name);
 377                 }
 378                 // Set CONTENT_IGNORE
 379                 {
 380                         ContentFeatures f;
 381                         f.name = "ignore";
 382                         f.drawtype = NDT_AIRLIKE;
 383                         f.param_type = CPT_NONE;
 384                         f.light_propagates = false;
 385                         f.sunlight_propagates = false;
 386                         f.walkable = false;
 387                         f.pointable = false;
 388                         f.diggable = false;
 389                         // A way to remove accidental CONTENT_IGNOREs
 390                         f.buildable_to = true;
 391                         // Insert directly into containers
 392                         content_t c = CONTENT_IGNORE;
 393                         m_content_features[c] = f;
 394                         addNameIdMapping(c, f.name);
 395                 }
 396         }
 397         // CONTENT_IGNORE = not found
 398         content_t getFreeId()
 399         {
 400                 for(u32 i=0; i<=0xffff; i++){
 401                         const ContentFeatures &f = m_content_features[i];
 402                         if(f.name == "")
 403                                 return i;
 404                 }
 405                 return CONTENT_IGNORE;
 406         }
 407         CNodeDefManager()
 408         {
 409                 clear();
 410         }
 411         virtual ~CNodeDefManager()
 412         {
 413         }
 414         virtual IWritableNodeDefManager* clone()
 415         {
 416                 CNodeDefManager *mgr = new CNodeDefManager();
 417                 for(u16 i=0; i<=MAX_CONTENT; i++)
 418                 {
 419                         mgr->set(i, get(i));
 420                 }
 421                 return mgr;
 422         }
 423         virtual const ContentFeatures& get(content_t c) const
 424         {
 425                 assert(c <= MAX_CONTENT);
 426                 return m_content_features[c];
 427         }
 428         virtual const ContentFeatures& get(const MapNode &n) const
 429         {
 430                 return get(n.getContent());
 431         }
 432         virtual bool getId(const std::string &name, content_t &result) const
 433         {
 434                 std::map<std::string, content_t>::const_iterator
 435                         i = m_name_id_mapping_with_aliases.find(name);
 436                 if(i == m_name_id_mapping_with_aliases.end())
 437                         return false;
 438                 result = i->second;
 439                 return true;
 440         }
 441         virtual content_t getId(const std::string &name) const
 442         {
 443                 content_t id = CONTENT_IGNORE;
 444                 getId(name, id);
 445                 return id;
 446         }
 447         virtual void getIds(const std::string &name, std::set<content_t> &result)
 448                         const
 449         {
 450                 if(name.substr(0,6) != "group:"){
 451                         content_t id = CONTENT_IGNORE;
 452                         if(getId(name, id))
 453                                 result.insert(id);
 454                         return;
 455                 }
 456                 std::string group = name.substr(6);
 457                 for(u16 id=0; id<=MAX_CONTENT; id++)
 458                 {
 459                         const ContentFeatures &f = m_content_features[id];
 460                         if(f.name == "") // Quickly discard undefined nodes
 461                                 continue;
 462                         if(itemgroup_get(f.groups, group) != 0)
 463                                 result.insert(id);
 464                 }
 465         }
 466         virtual const ContentFeatures& get(const std::string &name) const
 467         {
 468                 content_t id = CONTENT_IGNORE;
 469                 getId(name, id);
 470                 return get(id);
 471         }
 472         // IWritableNodeDefManager
 473         virtual void set(content_t c, const ContentFeatures &def)
 474         {
 475                 verbosestream<<"registerNode: registering content id \""<<c
 476                                 <<"\": name=\""<<def.name<<"\""<<std::endl;
 477                 assert(c <= MAX_CONTENT);
 478                 // Don't allow redefining CONTENT_IGNORE (but allow air)
 479                 if(def.name == "ignore" || c == CONTENT_IGNORE){
 480                         infostream<<"registerNode: WARNING: Ignoring "
 481                                         <<"CONTENT_IGNORE redefinition"<<std::endl;
 482                         return;
 483                 }
 484                 // Check that the special contents are not redefined as different id
 485                 // because it would mess up everything
 486                 if((def.name == "ignore" && c != CONTENT_IGNORE) ||
 487                         (def.name == "air" && c != CONTENT_AIR)){
 488                         errorstream<<"registerNode: IGNORING ERROR: "
 489                                         <<"trying to register built-in type \""
 490                                         <<def.name<<"\" as different id"<<std::endl;
 491                         return;
 492                 }
 493                 m_content_features[c] = def;
 494                 if(def.name != "")
 495                         addNameIdMapping(c, def.name);
 496         }
 497         virtual content_t set(const std::string &name,
 498                         const ContentFeatures &def)
 499         {
 500                 assert(name == def.name);
 501                 u16 id = CONTENT_IGNORE;
 502                 bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
 503                 if(!found){
 504                         // Get some id
 505                         id = getFreeId();
 506                         if(id == CONTENT_IGNORE)
 507                                 return CONTENT_IGNORE;
 508                         if(name != "")
 509                                 addNameIdMapping(id, name);
 510                 }
 511                 set(id, def);
 512                 return id;
 513         }
 514         virtual content_t allocateDummy(const std::string &name)
 515         {
 516                 assert(name != "");
 517                 ContentFeatures f;
 518                 f.name = name;
 519                 return set(name, f);
 520         }
 521         virtual void updateAliases(IItemDefManager *idef)
 522         {
 523                 std::set<std::string> all = idef->getAll();
 524                 m_name_id_mapping_with_aliases.clear();
 525                 for(std::set<std::string>::iterator
 526                                 i = all.begin(); i != all.end(); i++)
 527                 {
 528                         std::string name = *i;
 529                         std::string convert_to = idef->getAlias(name);
 530                         content_t id;
 531                         if(m_name_id_mapping.getId(convert_to, id))
 532                         {
 533                                 m_name_id_mapping_with_aliases.insert(
 534                                                 std::make_pair(name, id));
 535                         }
 536                 }
 537         }
 538         virtual void updateTextures(ITextureSource *tsrc)
 539         {
 540 #ifndef SERVER
 541                 infostream<<"CNodeDefManager::updateTextures(): Updating "
 542                                 <<"textures in node definitions"<<std::endl;
 543
 544                 bool new_style_water = g_settings->getBool("new_style_water");
 545                 bool new_style_leaves = g_settings->getBool("new_style_leaves");
 546                 bool opaque_water = g_settings->getBool("opaque_water");
 547
 548                 for(u16 i=0; i<=MAX_CONTENT; i++)
 549                 {
 550                         ContentFeatures *f = &m_content_features[i];
 551
 552                         // Figure out the actual tiles to use
 553                         TileDef tiledef[6];
 554                         for(u32 j=0; j<6; j++)
 555                         {
 556                                 tiledef[j] = f->tiledef[j];
 557                                 if(tiledef[j].name == "")
 558                                         tiledef[j].name = "unknown_block.png";
 559                         }
 560
 561                         bool is_liquid = false;
 562                         switch(f->drawtype){
 563                         default:
 564                         case NDT_NORMAL:
 565                                 f->solidness = 2;
 566                                 break;
 567                         case NDT_AIRLIKE:
 568                                 f->solidness = 0;
 569                                 break;
 570                         case NDT_LIQUID:
 571                                 assert(f->liquid_type == LIQUID_SOURCE);
 572                                 if(opaque_water)
 573                                         f->alpha = 255;
 574                                 if(new_style_water){
 575                                         f->solidness = 0;
 576                                 } else {
 577                                         f->solidness = 1;
 578                                         f->backface_culling = false;
 579                                 }
 580                                 is_liquid = true;
 581                                 break;
 582                         case NDT_FLOWINGLIQUID:
 583                                 assert(f->liquid_type == LIQUID_FLOWING);
 584                                 f->solidness = 0;
 585                                 if(opaque_water)
 586                                         f->alpha = 255;
 587                                 is_liquid = true;
 588                                 break;
 589                         case NDT_GLASSLIKE:
 590                                 f->solidness = 0;
 591                                 f->visual_solidness = 1;
 592                                 break;
 593                         case NDT_ALLFACES:
 594                                 f->solidness = 0;
 595                                 f->visual_solidness = 1;
 596                                 break;
 597                         case NDT_ALLFACES_OPTIONAL:
 598                                 if(new_style_leaves){
 599                                         f->drawtype = NDT_ALLFACES;
 600                                         f->solidness = 0;
 601                                         f->visual_solidness = 1;
 602                                 } else {
 603                                         f->drawtype = NDT_NORMAL;
 604                                         f->solidness = 2;
 605                                         for(u32 i=0; i<6; i++){
 606                                                 tiledef[i].name += std::string("^[noalpha");
 607                                         }
 608                                 }
 609                                 break;
 610                         case NDT_PLANTLIKE:
 611                                 f->solidness = 0;
 612                                 f->backface_culling = false;
 613                                 break;
 614                         case NDT_TORCHLIKE:
 615                         case NDT_SIGNLIKE:
 616                         case NDT_FENCELIKE:
 617                         case NDT_RAILLIKE:
 618                         case NDT_NODEBOX:
 619                                 f->solidness = 0;
 620                                 break;
 621                         }
 622
 623                         u8 material_type = 0;
 624                         if(is_liquid){
 625                                 if(f->alpha == 255)
 626                                         material_type = TILE_MATERIAL_LIQUID_OPAQUE;
 627                                 else
 628                                         material_type = TILE_MATERIAL_LIQUID_TRANSPARENT;
 629                         } else{
 630                                 material_type = TILE_MATERIAL_BASIC;
 631                         }
 632
 633                         // Tiles (fill in f->tiles[])
 634                         for(u16 j=0; j<6; j++){
 635                                 // Texture
 636                                 f->tiles[j].texture = tsrc->getTexture(tiledef[j].name);
 637                                 // Alpha
 638                                 f->tiles[j].alpha = f->alpha;
 639                                 // Material type
 640                                 f->tiles[j].material_type = material_type;
 641                                 // Material flags
 642                                 f->tiles[j].material_flags = 0;
 643                                 if(f->backface_culling)
 644                                         f->tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 645                                 if(tiledef[j].animation.type == TAT_VERTICAL_FRAMES)
 646                                         f->tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 647                                 // Animation parameters
 648                                 if(f->tiles[j].material_flags &
 649                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 650                                 {
 651                                         // Get raw texture size to determine frame count by
 652                                         // aspect ratio
 653                                         video::ITexture *t = tsrc->getTextureRaw(tiledef[j].name);
 654                                         v2u32 size = t->getOriginalSize();
 655                                         int frame_height = (float)size.X /
 656                                                         (float)tiledef[j].animation.aspect_w *
 657                                                         (float)tiledef[j].animation.aspect_h;
 658                                         int frame_count = size.Y / frame_height;
 659                                         int frame_length_ms = 1000.0 *
 660                                                         tiledef[j].animation.length / frame_count;
 661                                         f->tiles[j].animation_frame_count = frame_count;
 662                                         f->tiles[j].animation_frame_length_ms = frame_length_ms;
 663
 664                                         // If there are no frames for an animation, switch
 665                                         // animation off (so that having specified an animation
 666                                         // for something but not using it in the texture pack
 667                                         // gives no overhead)
 668                                         if(frame_count == 1){
 669                                                 f->tiles[j].material_flags &=
 670                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 671                                         }
 672                                 }
 673                         }
 674                         // Special tiles (fill in f->special_tiles[])
 675                         for(u16 j=0; j<CF_SPECIAL_COUNT; j++){
 676                                 // Texture
 677                                 f->special_tiles[j].texture =
 678                                                 tsrc->getTexture(f->tiledef_special[j].name);
 679                                 // Alpha
 680                                 f->special_tiles[j].alpha = f->alpha;
 681                                 // Material type
 682                                 f->special_tiles[j].material_type = material_type;
 683                                 // Material flags
 684                                 f->special_tiles[j].material_flags = 0;
 685                                 if(f->tiledef_special[j].backface_culling)
 686                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 687                                 if(f->tiledef_special[j].animation.type == TAT_VERTICAL_FRAMES)
 688                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 689                                 // Animation parameters
 690                                 if(f->special_tiles[j].material_flags &
 691                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 692                                 {
 693                                         // Get raw texture size to determine frame count by
 694                                         // aspect ratio
 695                                         video::ITexture *t = tsrc->getTextureRaw(f->tiledef_special[j].name);
 696                                         v2u32 size = t->getOriginalSize();
 697                                         int frame_height = (float)size.X /
 698                                                         (float)f->tiledef_special[j].animation.aspect_w *
 699                                                         (float)f->tiledef_special[j].animation.aspect_h;
 700                                         int frame_count = size.Y / frame_height;
 701                                         int frame_length_ms = 1000.0 *
 702                                                         f->tiledef_special[j].animation.length / frame_count;
 703                                         f->special_tiles[j].animation_frame_count = frame_count;
 704                                         f->special_tiles[j].animation_frame_length_ms = frame_length_ms;
 705
 706                                         // If there are no frames for an animation, switch
 707                                         // animation off (so that having specified an animation
 708                                         // for something but not using it in the texture pack
 709                                         // gives no overhead)
 710                                         if(frame_count == 1){
 711                                                 f->special_tiles[j].material_flags &=
 712                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 713                                         }
 714                                 }
 715                         }
 716                 }
 717 #endif
 718         }
 719         void serialize(std::ostream &os, u16 protocol_version)
 720         {
 721                 writeU8(os, 1); // version
 722                 u16 count = 0;
 723                 std::ostringstream os2(std::ios::binary);
 724                 for(u16 i=0; i<=MAX_CONTENT; i++)
 725                 {
 726                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 727                                 continue;
 728                         ContentFeatures *f = &m_content_features[i];
 729                         if(f->name == "")
 730                                 continue;
 731                         writeU16(os2, i);
 732                         // Wrap it in a string to allow different lengths without
 733                         // strict version incompatibilities
 734                         std::ostringstream wrapper_os(std::ios::binary);
 735                         f->serialize(wrapper_os, protocol_version);
 736                         os2<<serializeString(wrapper_os.str());
 737                         count++;
 738                 }
 739                 writeU16(os, count);
 740                 os<<serializeLongString(os2.str());
 741         }
 742         void deSerialize(std::istream &is)
 743         {
 744                 clear();
 745                 int version = readU8(is);
 746                 if(version != 1)
 747                         throw SerializationError("unsupported NodeDefinitionManager version");
 748                 u16 count = readU16(is);
 749                 std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 750                 for(u16 n=0; n<count; n++){
 751                         u16 i = readU16(is2);
 752                         if(i > MAX_CONTENT){
 753                                 errorstream<<"ContentFeatures::deSerialize(): "
 754                                                 <<"Too large content id: "<<i<<std::endl;
 755                                 continue;
 756                         }
 757                         /*// Do not deserialize special types
 758                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 759                                 continue;*/
 760                         ContentFeatures *f = &m_content_features[i];
 761                         // Read it from the string wrapper
 762                         std::string wrapper = deSerializeString(is2);
 763                         std::istringstream wrapper_is(wrapper, std::ios::binary);
 764                         f->deSerialize(wrapper_is);
 765                         verbosestream<<"deserialized "<<f->name<<std::endl;
 766                         if(f->name != "")
 767                                 addNameIdMapping(i, f->name);
 768                 }
 769         }
 770 private:
 771         void addNameIdMapping(content_t i, std::string name)
 772         {
 773                 m_name_id_mapping.set(i, name);
 774                 m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
 775         }
 776 private:
 777         // Features indexed by id
 778         ContentFeatures m_content_features[MAX_CONTENT+1];
 779         // A mapping for fast converting back and forth between names and ids
 780         NameIdMapping m_name_id_mapping;
 781         // Like m_name_id_mapping, but only from names to ids, and includes
 782         // item aliases too. Updated by updateAliases()
 783         // Note: Not serialized.
 784         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 785 };
 786
 787 IWritableNodeDefManager* createNodeDefManager()
 788 {
 789         return new CNodeDefManager();
 790 }
 791
 792 /*
 793         Serialization of old ContentFeatures formats
 794 */
 795
 796 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 797 {
 798         if(protocol_version == 13)
 799         {
 800                 writeU8(os, 5); // version
 801                 os<<serializeString(name);
 802                 writeU16(os, groups.size());
 803                 for(ItemGroupList::const_iterator
 804                                 i = groups.begin(); i != groups.end(); i++){
 805                         os<<serializeString(i->first);
 806                         writeS16(os, i->second);
 807                 }
 808                 writeU8(os, drawtype);
 809                 writeF1000(os, visual_scale);
 810                 writeU8(os, 6);
 811                 for(u32 i=0; i<6; i++)
 812                         tiledef[i].serialize(os);
 813                 writeU8(os, CF_SPECIAL_COUNT);
 814                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 815                         tiledef_special[i].serialize(os);
 816                 }
 817                 writeU8(os, alpha);
 818                 writeU8(os, post_effect_color.getAlpha());
 819                 writeU8(os, post_effect_color.getRed());
 820                 writeU8(os, post_effect_color.getGreen());
 821                 writeU8(os, post_effect_color.getBlue());
 822                 writeU8(os, param_type);
 823                 writeU8(os, param_type_2);
 824                 writeU8(os, is_ground_content);
 825                 writeU8(os, light_propagates);
 826                 writeU8(os, sunlight_propagates);
 827                 writeU8(os, walkable);
 828                 writeU8(os, pointable);
 829                 writeU8(os, diggable);
 830                 writeU8(os, climbable);
 831                 writeU8(os, buildable_to);
 832                 os<<serializeString(""); // legacy: used to be metadata_name
 833                 writeU8(os, liquid_type);
 834                 os<<serializeString(liquid_alternative_flowing);
 835                 os<<serializeString(liquid_alternative_source);
 836                 writeU8(os, liquid_viscosity);
 837                 writeU8(os, light_source);
 838                 writeU32(os, damage_per_second);
 839                 node_box.serialize(os);
 840                 selection_box.serialize(os);
 841                 writeU8(os, legacy_facedir_simple);
 842                 writeU8(os, legacy_wallmounted);
 843                 serializeSimpleSoundSpec(sound_footstep, os);
 844                 serializeSimpleSoundSpec(sound_dig, os);
 845                 serializeSimpleSoundSpec(sound_dug, os);
 846         }
 847         else
 848         {
 849                 throw SerializationError("ContentFeatures::serialize(): Unsupported version requested");
 850         }
 851 }
 852
 853 void ContentFeatures::deSerializeOld(std::istream &is, int version)
 854 {
 855         if(version == 5) // In PROTOCOL_VERSION 13
 856         {
 857                 name = deSerializeString(is);
 858                 groups.clear();
 859                 u32 groups_size = readU16(is);
 860                 for(u32 i=0; i<groups_size; i++){
 861                         std::string name = deSerializeString(is);
 862                         int value = readS16(is);
 863                         groups[name] = value;
 864                 }
 865                 drawtype = (enum NodeDrawType)readU8(is);
 866                 visual_scale = readF1000(is);
 867                 if(readU8(is) != 6)
 868                         throw SerializationError("unsupported tile count");
 869                 for(u32 i=0; i<6; i++)
 870                         tiledef[i].deSerialize(is);
 871                 if(readU8(is) != CF_SPECIAL_COUNT)
 872                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
 873                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 874                         tiledef_special[i].deSerialize(is);
 875                 alpha = readU8(is);
 876                 post_effect_color.setAlpha(readU8(is));
 877                 post_effect_color.setRed(readU8(is));
 878                 post_effect_color.setGreen(readU8(is));
 879                 post_effect_color.setBlue(readU8(is));
 880                 param_type = (enum ContentParamType)readU8(is);
 881                 param_type_2 = (enum ContentParamType2)readU8(is);
 882                 is_ground_content = readU8(is);
 883                 light_propagates = readU8(is);
 884                 sunlight_propagates = readU8(is);
 885                 walkable = readU8(is);
 886                 pointable = readU8(is);
 887                 diggable = readU8(is);
 888                 climbable = readU8(is);
 889                 buildable_to = readU8(is);
 890                 deSerializeString(is); // legacy: used to be metadata_name
 891                 liquid_type = (enum LiquidType)readU8(is);
 892                 liquid_alternative_flowing = deSerializeString(is);
 893                 liquid_alternative_source = deSerializeString(is);
 894                 liquid_viscosity = readU8(is);
 895                 light_source = readU8(is);
 896                 damage_per_second = readU32(is);
 897                 node_box.deSerialize(is);
 898                 selection_box.deSerialize(is);
 899                 legacy_facedir_simple = readU8(is);
 900                 legacy_wallmounted = readU8(is);
 901                 deSerializeSimpleSoundSpec(sound_footstep, is);
 902                 deSerializeSimpleSoundSpec(sound_dig, is);
 903                 deSerializeSimpleSoundSpec(sound_dug, is);
 904         }
 905         else
 906         {
 907                 throw SerializationError("unsupported ContentFeatures version");
 908         }
 909 }
 910