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 //#include "profiler.h" // For TimeTaker
  32
  33 /*
  34         NodeBox
  35 */
  36
  37 void NodeBox::reset()
  38 {
  39         type = NODEBOX_REGULAR;
  40         // default is empty
  41         fixed.clear();
  42         // default is sign/ladder-like
  43         wall_top = aabb3f(-BS/2, BS/2-BS/16., -BS/2, BS/2, BS/2, BS/2);
  44         wall_bottom = aabb3f(-BS/2, -BS/2, -BS/2, BS/2, -BS/2+BS/16., BS/2);
  45         wall_side = aabb3f(-BS/2, -BS/2, -BS/2, -BS/2+BS/16., BS/2, BS/2);
  46 }
  47
  48 void NodeBox::serialize(std::ostream &os) const
  49 {
  50         writeU8(os, 1); // version
  51         writeU8(os, type);
  52
  53         if(type == NODEBOX_FIXED)
  54         {
  55                 writeU16(os, fixed.size());
  56                 for(std::vector<aabb3f>::const_iterator
  57                                 i = fixed.begin();
  58                                 i != fixed.end(); i++)
  59                 {
  60                         writeV3F1000(os, i->MinEdge);
  61                         writeV3F1000(os, i->MaxEdge);
  62                 }
  63         }
  64         else if(type == NODEBOX_WALLMOUNTED)
  65         {
  66                 writeV3F1000(os, wall_top.MinEdge);
  67                 writeV3F1000(os, wall_top.MaxEdge);
  68                 writeV3F1000(os, wall_bottom.MinEdge);
  69                 writeV3F1000(os, wall_bottom.MaxEdge);
  70                 writeV3F1000(os, wall_side.MinEdge);
  71                 writeV3F1000(os, wall_side.MaxEdge);
  72         }
  73 }
  74
  75 void NodeBox::deSerialize(std::istream &is)
  76 {
  77         int version = readU8(is);
  78         if(version != 1)
  79                 throw SerializationError("unsupported NodeBox version");
  80
  81         reset();
  82
  83         type = (enum NodeBoxType)readU8(is);
  84
  85         if(type == NODEBOX_FIXED)
  86         {
  87                 u16 fixed_count = readU16(is);
  88                 while(fixed_count--)
  89                 {
  90                         aabb3f box;
  91                         box.MinEdge = readV3F1000(is);
  92                         box.MaxEdge = readV3F1000(is);
  93                         fixed.push_back(box);
  94                 }
  95         }
  96         else if(type == NODEBOX_WALLMOUNTED)
  97         {
  98                 wall_top.MinEdge = readV3F1000(is);
  99                 wall_top.MaxEdge = readV3F1000(is);
 100                 wall_bottom.MinEdge = readV3F1000(is);
 101                 wall_bottom.MaxEdge = readV3F1000(is);
 102                 wall_side.MinEdge = readV3F1000(is);
 103                 wall_side.MaxEdge = readV3F1000(is);
 104         }
 105 }
 106
 107 /*
 108         TileDef
 109 */
 110
 111 void TileDef::serialize(std::ostream &os, u16 protocol_version) const
 112 {
 113         if(protocol_version >= 17)
 114                 writeU8(os, 1);
 115         else
 116                 writeU8(os, 0);
 117         os<<serializeString(name);
 118         writeU8(os, animation.type);
 119         writeU16(os, animation.aspect_w);
 120         writeU16(os, animation.aspect_h);
 121         writeF1000(os, animation.length);
 122         if(protocol_version >= 17)
 123                 writeU8(os, backface_culling);
 124 }
 125
 126 void TileDef::deSerialize(std::istream &is)
 127 {
 128         int version = readU8(is);
 129         name = deSerializeString(is);
 130         animation.type = (TileAnimationType)readU8(is);
 131         animation.aspect_w = readU16(is);
 132         animation.aspect_h = readU16(is);
 133         animation.length = readF1000(is);
 134         if(version >= 1)
 135                 backface_culling = readU8(is);
 136 }
 137
 138 /*
 139         SimpleSoundSpec serialization
 140 */
 141
 142 static void serializeSimpleSoundSpec(const SimpleSoundSpec &ss,
 143                 std::ostream &os)
 144 {
 145         os<<serializeString(ss.name);
 146         writeF1000(os, ss.gain);
 147 }
 148 static void deSerializeSimpleSoundSpec(SimpleSoundSpec &ss, std::istream &is)
 149 {
 150         ss.name = deSerializeString(is);
 151         ss.gain = readF1000(is);
 152 }
 153
 154 /*
 155         ContentFeatures
 156 */
 157
 158 ContentFeatures::ContentFeatures()
 159 {
 160         reset();
 161 }
 162
 163 ContentFeatures::~ContentFeatures()
 164 {
 165 }
 166
 167 void ContentFeatures::reset()
 168 {
 169         /*
 170                 Cached stuff
 171         */
 172 #ifndef SERVER
 173         solidness = 2;
 174         visual_solidness = 0;
 175         backface_culling = true;
 176 #endif
 177         has_on_construct = false;
 178         has_on_destruct = false;
 179         has_after_destruct = false;
 180         /*
 181                 Actual data
 182
 183                 NOTE: Most of this is always overridden by the default values given
 184                       in builtin.lua
 185         */
 186         name = "";
 187         groups.clear();
 188         // Unknown nodes can be dug
 189         groups["dig_immediate"] = 2;
 190         drawtype = NDT_NORMAL;
 191         visual_scale = 1.0;
 192         for(u32 i=0; i<6; i++)
 193                 tiledef[i] = TileDef();
 194         for(u16 j=0; j<CF_SPECIAL_COUNT; j++)
 195                 tiledef_special[j] = TileDef();
 196         alpha = 255;
 197         post_effect_color = video::SColor(0, 0, 0, 0);
 198         param_type = CPT_NONE;
 199         param_type_2 = CPT2_NONE;
 200         is_ground_content = false;
 201         light_propagates = false;
 202         sunlight_propagates = false;
 203         walkable = true;
 204         pointable = true;
 205         diggable = true;
 206         climbable = false;
 207         buildable_to = false;
 208         rightclickable = true;
 209         liquid_type = LIQUID_NONE;
 210         liquid_alternative_flowing = "";
 211         liquid_alternative_source = "";
 212         liquid_viscosity = 0;
 213         liquid_renewable = true;
 214         drowning = true;
 215         light_source = 0;
 216         damage_per_second = 0;
 217         node_box = NodeBox();
 218         selection_box = NodeBox();
 219         legacy_facedir_simple = false;
 220         legacy_wallmounted = false;
 221         sound_footstep = SimpleSoundSpec();
 222         sound_dig = SimpleSoundSpec("__group");
 223         sound_dug = SimpleSoundSpec();
 224 }
 225
 226 void ContentFeatures::serialize(std::ostream &os, u16 protocol_version)
 227 {
 228         if(protocol_version < 14){
 229                 serializeOld(os, protocol_version);
 230                 return;
 231         }
 232
 233         writeU8(os, 6); // version
 234         os<<serializeString(name);
 235         writeU16(os, groups.size());
 236         for(ItemGroupList::const_iterator
 237                         i = groups.begin(); i != groups.end(); i++){
 238                 os<<serializeString(i->first);
 239                 writeS16(os, i->second);
 240         }
 241         writeU8(os, drawtype);
 242         writeF1000(os, visual_scale);
 243         writeU8(os, 6);
 244         for(u32 i=0; i<6; i++)
 245                 tiledef[i].serialize(os, protocol_version);
 246         writeU8(os, CF_SPECIAL_COUNT);
 247         for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 248                 tiledef_special[i].serialize(os, protocol_version);
 249         }
 250         writeU8(os, alpha);
 251         writeU8(os, post_effect_color.getAlpha());
 252         writeU8(os, post_effect_color.getRed());
 253         writeU8(os, post_effect_color.getGreen());
 254         writeU8(os, post_effect_color.getBlue());
 255         writeU8(os, param_type);
 256         writeU8(os, param_type_2);
 257         writeU8(os, is_ground_content);
 258         writeU8(os, light_propagates);
 259         writeU8(os, sunlight_propagates);
 260         writeU8(os, walkable);
 261         writeU8(os, pointable);
 262         writeU8(os, diggable);
 263         writeU8(os, climbable);
 264         writeU8(os, buildable_to);
 265         os<<serializeString(""); // legacy: used to be metadata_name
 266         writeU8(os, liquid_type);
 267         os<<serializeString(liquid_alternative_flowing);
 268         os<<serializeString(liquid_alternative_source);
 269         writeU8(os, liquid_viscosity);
 270         writeU8(os, liquid_renewable);
 271         writeU8(os, light_source);
 272         writeU32(os, damage_per_second);
 273         node_box.serialize(os);
 274         selection_box.serialize(os);
 275         writeU8(os, legacy_facedir_simple);
 276         writeU8(os, legacy_wallmounted);
 277         serializeSimpleSoundSpec(sound_footstep, os);
 278         serializeSimpleSoundSpec(sound_dig, os);
 279         serializeSimpleSoundSpec(sound_dug, os);
 280         writeU8(os, rightclickable);
 281         // Stuff below should be moved to correct place in a version that otherwise changes
 282         // the protocol version
 283         writeU8(os, drowning);
 284 }
 285
 286 void ContentFeatures::deSerialize(std::istream &is)
 287 {
 288         int version = readU8(is);
 289         if(version != 6){
 290                 deSerializeOld(is, version);
 291                 return;
 292         }
 293
 294         name = deSerializeString(is);
 295         groups.clear();
 296         u32 groups_size = readU16(is);
 297         for(u32 i=0; i<groups_size; i++){
 298                 std::string name = deSerializeString(is);
 299                 int value = readS16(is);
 300                 groups[name] = value;
 301         }
 302         drawtype = (enum NodeDrawType)readU8(is);
 303         visual_scale = readF1000(is);
 304         if(readU8(is) != 6)
 305                 throw SerializationError("unsupported tile count");
 306         for(u32 i=0; i<6; i++)
 307                 tiledef[i].deSerialize(is);
 308         if(readU8(is) != CF_SPECIAL_COUNT)
 309                 throw SerializationError("unsupported CF_SPECIAL_COUNT");
 310         for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 311                 tiledef_special[i].deSerialize(is);
 312         alpha = readU8(is);
 313         post_effect_color.setAlpha(readU8(is));
 314         post_effect_color.setRed(readU8(is));
 315         post_effect_color.setGreen(readU8(is));
 316         post_effect_color.setBlue(readU8(is));
 317         param_type = (enum ContentParamType)readU8(is);
 318         param_type_2 = (enum ContentParamType2)readU8(is);
 319         is_ground_content = readU8(is);
 320         light_propagates = readU8(is);
 321         sunlight_propagates = readU8(is);
 322         walkable = readU8(is);
 323         pointable = readU8(is);
 324         diggable = readU8(is);
 325         climbable = readU8(is);
 326         buildable_to = readU8(is);
 327         deSerializeString(is); // legacy: used to be metadata_name
 328         liquid_type = (enum LiquidType)readU8(is);
 329         liquid_alternative_flowing = deSerializeString(is);
 330         liquid_alternative_source = deSerializeString(is);
 331         liquid_viscosity = readU8(is);
 332         liquid_renewable = readU8(is);
 333         light_source = readU8(is);
 334         damage_per_second = readU32(is);
 335         node_box.deSerialize(is);
 336         selection_box.deSerialize(is);
 337         legacy_facedir_simple = readU8(is);
 338         legacy_wallmounted = readU8(is);
 339         deSerializeSimpleSoundSpec(sound_footstep, is);
 340         deSerializeSimpleSoundSpec(sound_dig, is);
 341         deSerializeSimpleSoundSpec(sound_dug, is);
 342         rightclickable = readU8(is);
 343         // If you add anything here, insert it primarily inside the try-catch
 344         // block to not need to increase the version.
 345         try{
 346                 // Stuff below should be moved to correct place in a version that
 347                 // otherwise changes the protocol version
 348                 drowning = readU8(is);
 349         }catch(SerializationError &e) {};
 350 }
 351
 352 /*
 353         CNodeDefManager
 354 */
 355
 356 class CNodeDefManager: public IWritableNodeDefManager
 357 {
 358 public:
 359         void clear()
 360         {
 361                 m_name_id_mapping.clear();
 362                 m_name_id_mapping_with_aliases.clear();
 363
 364                 for(u16 i=0; i<=MAX_CONTENT; i++)
 365                 {
 366                         ContentFeatures &f = m_content_features[i];
 367                         f.reset(); // Reset to defaults
 368                 }
 369
 370                 // Set CONTENT_AIR
 371                 {
 372                         ContentFeatures f;
 373                         f.name = "air";
 374                         f.drawtype = NDT_AIRLIKE;
 375                         f.param_type = CPT_LIGHT;
 376                         f.light_propagates = true;
 377                         f.sunlight_propagates = true;
 378                         f.walkable = false;
 379                         f.pointable = false;
 380                         f.diggable = false;
 381                         f.buildable_to = true;
 382                         // Insert directly into containers
 383                         content_t c = CONTENT_AIR;
 384                         m_content_features[c] = f;
 385                         addNameIdMapping(c, f.name);
 386                 }
 387                 // Set CONTENT_IGNORE
 388                 {
 389                         ContentFeatures f;
 390                         f.name = "ignore";
 391                         f.drawtype = NDT_AIRLIKE;
 392                         f.param_type = CPT_NONE;
 393                         f.light_propagates = false;
 394                         f.sunlight_propagates = false;
 395                         f.walkable = false;
 396                         f.pointable = false;
 397                         f.diggable = false;
 398                         // A way to remove accidental CONTENT_IGNOREs
 399                         f.buildable_to = true;
 400                         // Insert directly into containers
 401                         content_t c = CONTENT_IGNORE;
 402                         m_content_features[c] = f;
 403                         addNameIdMapping(c, f.name);
 404                 }
 405         }
 406         // CONTENT_IGNORE = not found
 407         content_t getFreeId()
 408         {
 409                 for(u32 i=0; i<=0xffff; i++){
 410                         const ContentFeatures &f = m_content_features[i];
 411                         if(f.name == "")
 412                                 return i;
 413                 }
 414                 return CONTENT_IGNORE;
 415         }
 416         CNodeDefManager()
 417         {
 418                 clear();
 419         }
 420         virtual ~CNodeDefManager()
 421         {
 422         }
 423         virtual IWritableNodeDefManager* clone()
 424         {
 425                 CNodeDefManager *mgr = new CNodeDefManager();
 426                 for(u16 i=0; i<=MAX_CONTENT; i++)
 427                 {
 428                         mgr->set(i, get(i));
 429                 }
 430                 return mgr;
 431         }
 432         virtual const ContentFeatures& get(content_t c) const
 433         {
 434                 assert(c <= MAX_CONTENT);
 435                 return m_content_features[c];
 436         }
 437         virtual const ContentFeatures& get(const MapNode &n) const
 438         {
 439                 return get(n.getContent());
 440         }
 441         virtual bool getId(const std::string &name, content_t &result) const
 442         {
 443                 std::map<std::string, content_t>::const_iterator
 444                         i = m_name_id_mapping_with_aliases.find(name);
 445                 if(i == m_name_id_mapping_with_aliases.end())
 446                         return false;
 447                 result = i->second;
 448                 return true;
 449         }
 450         virtual content_t getId(const std::string &name) const
 451         {
 452                 content_t id = CONTENT_IGNORE;
 453                 getId(name, id);
 454                 return id;
 455         }
 456         virtual void getIds(const std::string &name, std::set<content_t> &result)
 457                         const
 458         {
 459                 //TimeTaker t("getIds", NULL, PRECISION_MICRO);
 460                 if(name.substr(0,6) != "group:"){
 461                         content_t id = CONTENT_IGNORE;
 462                         if(getId(name, id))
 463                                 result.insert(id);
 464                         return;
 465                 }
 466                 std::string group = name.substr(6);
 467
 468 #if 1   // Optimized version, takes less than 1 microsecond at -O1
 469                 std::map<std::string, GroupItems>::const_iterator
 470                         i = m_group_to_items.find(group);
 471                 if (i == m_group_to_items.end())
 472                         return;
 473
 474                 const GroupItems &items = i->second;
 475                 for (GroupItems::const_iterator j = items.begin();
 476                         j != items.end(); ++j) {
 477                         if ((*j).second != 0)
 478                                 result.insert((*j).first);
 479                 }
 480 #else   // Old version, takes about ~150-200us at -O1
 481                 for(u16 id=0; id<=MAX_CONTENT; id++)
 482                 {
 483                         const ContentFeatures &f = m_content_features[id];
 484                         if(f.name == "") // Quickly discard undefined nodes
 485                                 continue;
 486                         if(itemgroup_get(f.groups, group) != 0)
 487                                 result.insert(id);
 488                 }
 489 #endif
 490                 //printf("getIds: %dus\n", t.stop());
 491         }
 492         virtual const ContentFeatures& get(const std::string &name) const
 493         {
 494                 content_t id = CONTENT_IGNORE;
 495                 getId(name, id);
 496                 return get(id);
 497         }
 498         // IWritableNodeDefManager
 499         virtual void set(content_t c, const ContentFeatures &def)
 500         {
 501                 verbosestream<<"registerNode: registering content id \""<<c
 502                                 <<"\": name=\""<<def.name<<"\""<<std::endl;
 503                 assert(c <= MAX_CONTENT);
 504                 // Don't allow redefining CONTENT_IGNORE (but allow air)
 505                 if(def.name == "ignore" || c == CONTENT_IGNORE){
 506                         infostream<<"registerNode: WARNING: Ignoring "
 507                                         <<"CONTENT_IGNORE redefinition"<<std::endl;
 508                         return;
 509                 }
 510                 // Check that the special contents are not redefined as different id
 511                 // because it would mess up everything
 512                 if((def.name == "ignore" && c != CONTENT_IGNORE) ||
 513                         (def.name == "air" && c != CONTENT_AIR)){
 514                         errorstream<<"registerNode: IGNORING ERROR: "
 515                                         <<"trying to register built-in type \""
 516                                         <<def.name<<"\" as different id"<<std::endl;
 517                         return;
 518                 }
 519                 m_content_features[c] = def;
 520                 if(def.name != "")
 521                         addNameIdMapping(c, def.name);
 522
 523                 // Add this content to the list of all groups it belongs to
 524                 for (ItemGroupList::const_iterator i = def.groups.begin();
 525                         i != def.groups.end(); ++i) {
 526                         std::string group_name = i->first;
 527
 528                         std::map<std::string, GroupItems>::iterator
 529                                 j = m_group_to_items.find(group_name);
 530                         if (j == m_group_to_items.end()) {
 531                                 m_group_to_items[group_name].push_back(std::make_pair(c, i->second));
 532                         } else {
 533                                 GroupItems &items = j->second;
 534                                 items.push_back(std::make_pair(c, i->second));
 535                         }
 536                 }
 537         }
 538         virtual content_t set(const std::string &name,
 539                         const ContentFeatures &def)
 540         {
 541                 assert(name == def.name);
 542                 u16 id = CONTENT_IGNORE;
 543                 bool found = m_name_id_mapping.getId(name, id);  // ignore aliases
 544                 if(!found){
 545                         // Get some id
 546                         id = getFreeId();
 547                         if(id == CONTENT_IGNORE)
 548                                 return CONTENT_IGNORE;
 549                         if(name != "")
 550                                 addNameIdMapping(id, name);
 551                 }
 552                 set(id, def);
 553                 return id;
 554         }
 555         virtual content_t allocateDummy(const std::string &name)
 556         {
 557                 assert(name != "");
 558                 ContentFeatures f;
 559                 f.name = name;
 560                 return set(name, f);
 561         }
 562         virtual void updateAliases(IItemDefManager *idef)
 563         {
 564                 std::set<std::string> all = idef->getAll();
 565                 m_name_id_mapping_with_aliases.clear();
 566                 for(std::set<std::string>::iterator
 567                                 i = all.begin(); i != all.end(); i++)
 568                 {
 569                         std::string name = *i;
 570                         std::string convert_to = idef->getAlias(name);
 571                         content_t id;
 572                         if(m_name_id_mapping.getId(convert_to, id))
 573                         {
 574                                 m_name_id_mapping_with_aliases.insert(
 575                                                 std::make_pair(name, id));
 576                         }
 577                 }
 578         }
 579         virtual void updateTextures(ITextureSource *tsrc)
 580         {
 581 #ifndef SERVER
 582                 infostream<<"CNodeDefManager::updateTextures(): Updating "
 583                                 <<"textures in node definitions"<<std::endl;
 584
 585                 bool new_style_water = g_settings->getBool("new_style_water");
 586                 bool new_style_leaves = g_settings->getBool("new_style_leaves");
 587                 bool opaque_water = g_settings->getBool("opaque_water");
 588
 589                 for(u16 i=0; i<=MAX_CONTENT; i++)
 590                 {
 591                         ContentFeatures *f = &m_content_features[i];
 592
 593                         // Figure out the actual tiles to use
 594                         TileDef tiledef[6];
 595                         for(u32 j=0; j<6; j++)
 596                         {
 597                                 tiledef[j] = f->tiledef[j];
 598                                 if(tiledef[j].name == "")
 599                                         tiledef[j].name = "unknown_node.png";
 600                         }
 601
 602                         bool is_liquid = false;
 603                         switch(f->drawtype){
 604                         default:
 605                         case NDT_NORMAL:
 606                                 f->solidness = 2;
 607                                 break;
 608                         case NDT_AIRLIKE:
 609                                 f->solidness = 0;
 610                                 break;
 611                         case NDT_LIQUID:
 612                                 assert(f->liquid_type == LIQUID_SOURCE);
 613                                 if(opaque_water)
 614                                         f->alpha = 255;
 615                                 if(new_style_water){
 616                                         f->solidness = 0;
 617                                 } else {
 618                                         f->solidness = 1;
 619                                         f->backface_culling = false;
 620                                 }
 621                                 is_liquid = true;
 622                                 break;
 623                         case NDT_FLOWINGLIQUID:
 624                                 assert(f->liquid_type == LIQUID_FLOWING);
 625                                 f->solidness = 0;
 626                                 if(opaque_water)
 627                                         f->alpha = 255;
 628                                 is_liquid = true;
 629                                 break;
 630                         case NDT_GLASSLIKE:
 631                                 f->solidness = 0;
 632                                 f->visual_solidness = 1;
 633                                 break;
 634                         case NDT_GLASSLIKE_FRAMED:
 635                                 f->solidness = 0;
 636                                 f->visual_solidness = 1;
 637                                 break;
 638                         case NDT_ALLFACES:
 639                                 f->solidness = 0;
 640                                 f->visual_solidness = 1;
 641                                 break;
 642                         case NDT_ALLFACES_OPTIONAL:
 643                                 if(new_style_leaves){
 644                                         f->drawtype = NDT_ALLFACES;
 645                                         f->solidness = 0;
 646                                         f->visual_solidness = 1;
 647                                 } else {
 648                                         f->drawtype = NDT_NORMAL;
 649                                         f->solidness = 2;
 650                                         for(u32 i=0; i<6; i++){
 651                                                 tiledef[i].name += std::string("^[noalpha");
 652                                         }
 653                                 }
 654                                 break;
 655                         case NDT_PLANTLIKE:
 656                                 f->solidness = 0;
 657                                 f->backface_culling = false;
 658                                 break;
 659                         case NDT_TORCHLIKE:
 660                         case NDT_SIGNLIKE:
 661                         case NDT_FENCELIKE:
 662                         case NDT_RAILLIKE:
 663                         case NDT_NODEBOX:
 664                                 f->solidness = 0;
 665                                 break;
 666                         }
 667
 668                         u8 material_type;
 669                         if (is_liquid)
 670                                 material_type = (f->alpha == 255) ? TILE_MATERIAL_LIQUID_OPAQUE : TILE_MATERIAL_LIQUID_TRANSPARENT;
 671                         else
 672                                 material_type = (f->alpha == 255) ? TILE_MATERIAL_BASIC : TILE_MATERIAL_ALPHA;
 673
 674                         // Tiles (fill in f->tiles[])
 675                         for(u16 j=0; j<6; j++){
 676                                 // Texture
 677                                 f->tiles[j].texture = tsrc->getTexture(
 678                                                 tiledef[j].name,
 679                                                 &f->tiles[j].texture_id);
 680                                 // Alpha
 681                                 f->tiles[j].alpha = f->alpha;
 682                                 // Material type
 683                                 f->tiles[j].material_type = material_type;
 684                                 // Material flags
 685                                 f->tiles[j].material_flags = 0;
 686                                 if(f->backface_culling)
 687                                         f->tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 688                                 if(tiledef[j].animation.type == TAT_VERTICAL_FRAMES)
 689                                         f->tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 690                                 // Animation parameters
 691                                 if(f->tiles[j].material_flags &
 692                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 693                                 {
 694                                         // Get texture size to determine frame count by
 695                                         // aspect ratio
 696                                         v2u32 size = f->tiles[j].texture->getOriginalSize();
 697                                         int frame_height = (float)size.X /
 698                                                         (float)tiledef[j].animation.aspect_w *
 699                                                         (float)tiledef[j].animation.aspect_h;
 700                                         int frame_count = size.Y / frame_height;
 701                                         int frame_length_ms = 1000.0 *
 702                                                         tiledef[j].animation.length / frame_count;
 703                                         f->tiles[j].animation_frame_count = frame_count;
 704                                         f->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->tiles[j].material_flags &=
 712                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 713                                         }
 714                                 }
 715                         }
 716                         // Special tiles (fill in f->special_tiles[])
 717                         for(u16 j=0; j<CF_SPECIAL_COUNT; j++){
 718                                 // Texture
 719                                 f->special_tiles[j].texture = tsrc->getTexture(
 720                                                 f->tiledef_special[j].name,
 721                                                 &f->special_tiles[j].texture_id);
 722                                 // Alpha
 723                                 f->special_tiles[j].alpha = f->alpha;
 724                                 // Material type
 725                                 f->special_tiles[j].material_type = material_type;
 726                                 // Material flags
 727                                 f->special_tiles[j].material_flags = 0;
 728                                 if(f->tiledef_special[j].backface_culling)
 729                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_BACKFACE_CULLING;
 730                                 if(f->tiledef_special[j].animation.type == TAT_VERTICAL_FRAMES)
 731                                         f->special_tiles[j].material_flags |= MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 732                                 // Animation parameters
 733                                 if(f->special_tiles[j].material_flags &
 734                                                 MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES)
 735                                 {
 736                                         // Get texture size to determine frame count by
 737                                         // aspect ratio
 738                                         v2u32 size = f->special_tiles[j].texture->getOriginalSize();
 739                                         int frame_height = (float)size.X /
 740                                                         (float)f->tiledef_special[j].animation.aspect_w *
 741                                                         (float)f->tiledef_special[j].animation.aspect_h;
 742                                         int frame_count = size.Y / frame_height;
 743                                         int frame_length_ms = 1000.0 *
 744                                                         f->tiledef_special[j].animation.length / frame_count;
 745                                         f->special_tiles[j].animation_frame_count = frame_count;
 746                                         f->special_tiles[j].animation_frame_length_ms = frame_length_ms;
 747
 748                                         // If there are no frames for an animation, switch
 749                                         // animation off (so that having specified an animation
 750                                         // for something but not using it in the texture pack
 751                                         // gives no overhead)
 752                                         if(frame_count == 1){
 753                                                 f->special_tiles[j].material_flags &=
 754                                                                 ~MATERIAL_FLAG_ANIMATION_VERTICAL_FRAMES;
 755                                         }
 756                                 }
 757                         }
 758                 }
 759 #endif
 760         }
 761         void serialize(std::ostream &os, u16 protocol_version)
 762         {
 763                 writeU8(os, 1); // version
 764                 u16 count = 0;
 765                 std::ostringstream os2(std::ios::binary);
 766                 for(u16 i=0; i<=MAX_CONTENT; i++)
 767                 {
 768                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 769                                 continue;
 770                         ContentFeatures *f = &m_content_features[i];
 771                         if(f->name == "")
 772                                 continue;
 773                         writeU16(os2, i);
 774                         // Wrap it in a string to allow different lengths without
 775                         // strict version incompatibilities
 776                         std::ostringstream wrapper_os(std::ios::binary);
 777                         f->serialize(wrapper_os, protocol_version);
 778                         os2<<serializeString(wrapper_os.str());
 779                         count++;
 780                 }
 781                 writeU16(os, count);
 782                 os<<serializeLongString(os2.str());
 783         }
 784         void deSerialize(std::istream &is)
 785         {
 786                 clear();
 787                 int version = readU8(is);
 788                 if(version != 1)
 789                         throw SerializationError("unsupported NodeDefinitionManager version");
 790                 u16 count = readU16(is);
 791                 std::istringstream is2(deSerializeLongString(is), std::ios::binary);
 792                 for(u16 n=0; n<count; n++){
 793                         u16 i = readU16(is2);
 794                         if(i > MAX_CONTENT){
 795                                 errorstream<<"ContentFeatures::deSerialize(): "
 796                                                 <<"Too large content id: "<<i<<std::endl;
 797                                 continue;
 798                         }
 799                         /*// Do not deserialize special types
 800                         if(i == CONTENT_IGNORE || i == CONTENT_AIR)
 801                                 continue;*/
 802                         ContentFeatures *f = &m_content_features[i];
 803                         // Read it from the string wrapper
 804                         std::string wrapper = deSerializeString(is2);
 805                         std::istringstream wrapper_is(wrapper, std::ios::binary);
 806                         f->deSerialize(wrapper_is);
 807                         verbosestream<<"deserialized "<<f->name<<std::endl;
 808                         if(f->name != "")
 809                                 addNameIdMapping(i, f->name);
 810                 }
 811         }
 812 private:
 813         void addNameIdMapping(content_t i, std::string name)
 814         {
 815                 m_name_id_mapping.set(i, name);
 816                 m_name_id_mapping_with_aliases.insert(std::make_pair(name, i));
 817         }
 818 private:
 819         // Features indexed by id
 820         ContentFeatures m_content_features[MAX_CONTENT+1];
 821         // A mapping for fast converting back and forth between names and ids
 822         NameIdMapping m_name_id_mapping;
 823         // Like m_name_id_mapping, but only from names to ids, and includes
 824         // item aliases too. Updated by updateAliases()
 825         // Note: Not serialized.
 826         std::map<std::string, content_t> m_name_id_mapping_with_aliases;
 827         // A mapping from groups to a list of content_ts (and their levels)
 828         // that belong to it.  Necessary for a direct lookup in getIds().
 829         // Note: Not serialized.
 830         std::map<std::string, GroupItems> m_group_to_items;
 831 };
 832
 833 IWritableNodeDefManager* createNodeDefManager()
 834 {
 835         return new CNodeDefManager();
 836 }
 837
 838 /*
 839         Serialization of old ContentFeatures formats
 840 */
 841
 842 void ContentFeatures::serializeOld(std::ostream &os, u16 protocol_version)
 843 {
 844         if(protocol_version == 13)
 845         {
 846                 writeU8(os, 5); // version
 847                 os<<serializeString(name);
 848                 writeU16(os, groups.size());
 849                 for(ItemGroupList::const_iterator
 850                                 i = groups.begin(); i != groups.end(); i++){
 851                         os<<serializeString(i->first);
 852                         writeS16(os, i->second);
 853                 }
 854                 writeU8(os, drawtype);
 855                 writeF1000(os, visual_scale);
 856                 writeU8(os, 6);
 857                 for(u32 i=0; i<6; i++)
 858                         tiledef[i].serialize(os, protocol_version);
 859                 writeU8(os, CF_SPECIAL_COUNT);
 860                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++){
 861                         tiledef_special[i].serialize(os, protocol_version);
 862                 }
 863                 writeU8(os, alpha);
 864                 writeU8(os, post_effect_color.getAlpha());
 865                 writeU8(os, post_effect_color.getRed());
 866                 writeU8(os, post_effect_color.getGreen());
 867                 writeU8(os, post_effect_color.getBlue());
 868                 writeU8(os, param_type);
 869                 writeU8(os, param_type_2);
 870                 writeU8(os, is_ground_content);
 871                 writeU8(os, light_propagates);
 872                 writeU8(os, sunlight_propagates);
 873                 writeU8(os, walkable);
 874                 writeU8(os, pointable);
 875                 writeU8(os, diggable);
 876                 writeU8(os, climbable);
 877                 writeU8(os, buildable_to);
 878                 os<<serializeString(""); // legacy: used to be metadata_name
 879                 writeU8(os, liquid_type);
 880                 os<<serializeString(liquid_alternative_flowing);
 881                 os<<serializeString(liquid_alternative_source);
 882                 writeU8(os, liquid_viscosity);
 883                 writeU8(os, light_source);
 884                 writeU32(os, damage_per_second);
 885                 node_box.serialize(os);
 886                 selection_box.serialize(os);
 887                 writeU8(os, legacy_facedir_simple);
 888                 writeU8(os, legacy_wallmounted);
 889                 serializeSimpleSoundSpec(sound_footstep, os);
 890                 serializeSimpleSoundSpec(sound_dig, os);
 891                 serializeSimpleSoundSpec(sound_dug, os);
 892         }
 893         else
 894         {
 895                 throw SerializationError("ContentFeatures::serialize(): Unsupported version requested");
 896         }
 897 }
 898
 899 void ContentFeatures::deSerializeOld(std::istream &is, int version)
 900 {
 901         if(version == 5) // In PROTOCOL_VERSION 13
 902         {
 903                 name = deSerializeString(is);
 904                 groups.clear();
 905                 u32 groups_size = readU16(is);
 906                 for(u32 i=0; i<groups_size; i++){
 907                         std::string name = deSerializeString(is);
 908                         int value = readS16(is);
 909                         groups[name] = value;
 910                 }
 911                 drawtype = (enum NodeDrawType)readU8(is);
 912                 visual_scale = readF1000(is);
 913                 if(readU8(is) != 6)
 914                         throw SerializationError("unsupported tile count");
 915                 for(u32 i=0; i<6; i++)
 916                         tiledef[i].deSerialize(is);
 917                 if(readU8(is) != CF_SPECIAL_COUNT)
 918                         throw SerializationError("unsupported CF_SPECIAL_COUNT");
 919                 for(u32 i=0; i<CF_SPECIAL_COUNT; i++)
 920                         tiledef_special[i].deSerialize(is);
 921                 alpha = readU8(is);
 922                 post_effect_color.setAlpha(readU8(is));
 923                 post_effect_color.setRed(readU8(is));
 924                 post_effect_color.setGreen(readU8(is));
 925                 post_effect_color.setBlue(readU8(is));
 926                 param_type = (enum ContentParamType)readU8(is);
 927                 param_type_2 = (enum ContentParamType2)readU8(is);
 928                 is_ground_content = readU8(is);
 929                 light_propagates = readU8(is);
 930                 sunlight_propagates = readU8(is);
 931                 walkable = readU8(is);
 932                 pointable = readU8(is);
 933                 diggable = readU8(is);
 934                 climbable = readU8(is);
 935                 buildable_to = readU8(is);
 936                 deSerializeString(is); // legacy: used to be metadata_name
 937                 liquid_type = (enum LiquidType)readU8(is);
 938                 liquid_alternative_flowing = deSerializeString(is);
 939                 liquid_alternative_source = deSerializeString(is);
 940                 liquid_viscosity = readU8(is);
 941                 light_source = readU8(is);
 942                 damage_per_second = readU32(is);
 943                 node_box.deSerialize(is);
 944                 selection_box.deSerialize(is);
 945                 legacy_facedir_simple = readU8(is);
 946                 legacy_wallmounted = readU8(is);
 947                 deSerializeSimpleSoundSpec(sound_footstep, is);
 948                 deSerializeSimpleSoundSpec(sound_dig, is);
 949                 deSerializeSimpleSoundSpec(sound_dug, is);
 950         }
 951         else
 952         {
 953                 throw SerializationError("unsupported ContentFeatures version");
 954         }
 955 }
 956