src/inventory.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 "inventory.h"
  21 #include "serialization.h"
  22 #include "debug.h"
  23 #include <algorithm>
  24 #include <sstream>
  25 #include "log.h"
  26 #include "itemdef.h"
  27 #include "util/strfnd.h"
  28 #include "content_mapnode.h" // For loading legacy MaterialItems
  29 #include "nameidmapping.h" // For loading legacy MaterialItems
  30 #include "util/serialize.h"
  31 #include "util/string.h"
  32
  33 /*
  34         ItemStack
  35 */
  36
  37 static content_t content_translate_from_19_to_internal(content_t c_from)
  38 {
  39         for (const auto &tt : trans_table_19) {
  40                 if(tt[1] == c_from) {
  41                         return tt[0];
  42                 }
  43         }
  44         return c_from;
  45 }
  46
  47 ItemStack::ItemStack(const std::string &name_, u16 count_,
  48                 u16 wear_, IItemDefManager *itemdef) :
  49         name(itemdef->getAlias(name_)),
  50         count(count_),
  51         wear(wear_)
  52 {
  53         if (name.empty() || count == 0)
  54                 clear();
  55         else if (itemdef->get(name).type == ITEM_TOOL)
  56                 count = 1;
  57 }
  58
  59 void ItemStack::serialize(std::ostream &os, bool serialize_meta) const
  60 {
  61         if (empty())
  62                 return;
  63
  64         // Check how many parts of the itemstring are needed
  65         int parts = 1;
  66         if (!metadata.empty())
  67                 parts = 4;
  68         else if (wear != 0)
  69                 parts = 3;
  70         else if (count != 1)
  71                 parts = 2;
  72
  73         os << serializeJsonStringIfNeeded(name);
  74         if (parts >= 2)
  75                 os << " " << count;
  76         if (parts >= 3)
  77                 os << " " << wear;
  78         if (parts >= 4) {
  79                 os << " ";
  80                 if (serialize_meta)
  81                         metadata.serialize(os);
  82                 else
  83                         os << "<metadata size=" << metadata.size() << ">";
  84         }
  85 }
  86
  87 void ItemStack::deSerialize(std::istream &is, IItemDefManager *itemdef)
  88 {
  89         clear();
  90
  91         // Read name
  92         name = deSerializeJsonStringIfNeeded(is);
  93
  94         // Skip space
  95         std::string tmp;
  96         std::getline(is, tmp, ' ');
  97         if(!tmp.empty())
  98                 throw SerializationError("Unexpected text after item name");
  99
 100         if(name == "MaterialItem")
 101         {
 102                 // Obsoleted on 2011-07-30
 103
 104                 u16 material;
 105                 is>>material;
 106                 u16 materialcount;
 107                 is>>materialcount;
 108                 // Convert old materials
 109                 if(material <= 0xff)
 110                         material = content_translate_from_19_to_internal(material);
 111                 if(material > 0xfff)
 112                         throw SerializationError("Too large material number");
 113                 // Convert old id to name
 114                 NameIdMapping legacy_nimap;
 115                 content_mapnode_get_name_id_mapping(&legacy_nimap);
 116                 legacy_nimap.getName(material, name);
 117                 if(name.empty())
 118                         name = "unknown_block";
 119                 if (itemdef)
 120                         name = itemdef->getAlias(name);
 121                 count = materialcount;
 122         }
 123         else if(name == "MaterialItem2")
 124         {
 125                 // Obsoleted on 2011-11-16
 126
 127                 u16 material;
 128                 is>>material;
 129                 u16 materialcount;
 130                 is>>materialcount;
 131                 if(material > 0xfff)
 132                         throw SerializationError("Too large material number");
 133                 // Convert old id to name
 134                 NameIdMapping legacy_nimap;
 135                 content_mapnode_get_name_id_mapping(&legacy_nimap);
 136                 legacy_nimap.getName(material, name);
 137                 if(name.empty())
 138                         name = "unknown_block";
 139                 if (itemdef)
 140                         name = itemdef->getAlias(name);
 141                 count = materialcount;
 142         }
 143         else if(name == "node" || name == "NodeItem" || name == "MaterialItem3"
 144                         || name == "craft" || name == "CraftItem")
 145         {
 146                 // Obsoleted on 2012-01-07
 147
 148                 std::string all;
 149                 std::getline(is, all, '\n');
 150                 // First attempt to read inside ""
 151                 Strfnd fnd(all);
 152                 fnd.next("\"");
 153                 // If didn't skip to end, we have ""s
 154                 if(!fnd.at_end()){
 155                         name = fnd.next("\"");
 156                 } else { // No luck, just read a word then
 157                         fnd.start(all);
 158                         name = fnd.next(" ");
 159                 }
 160                 fnd.skip_over(" ");
 161                 if (itemdef)
 162                         name = itemdef->getAlias(name);
 163                 count = stoi(trim(fnd.next("")));
 164                 if(count == 0)
 165                         count = 1;
 166         }
 167         else if(name == "MBOItem")
 168         {
 169                 // Obsoleted on 2011-10-14
 170                 throw SerializationError("MBOItem not supported anymore");
 171         }
 172         else if(name == "tool" || name == "ToolItem")
 173         {
 174                 // Obsoleted on 2012-01-07
 175
 176                 std::string all;
 177                 std::getline(is, all, '\n');
 178                 // First attempt to read inside ""
 179                 Strfnd fnd(all);
 180                 fnd.next("\"");
 181                 // If didn't skip to end, we have ""s
 182                 if(!fnd.at_end()){
 183                         name = fnd.next("\"");
 184                 } else { // No luck, just read a word then
 185                         fnd.start(all);
 186                         name = fnd.next(" ");
 187                 }
 188                 count = 1;
 189                 // Then read wear
 190                 fnd.skip_over(" ");
 191                 if (itemdef)
 192                         name = itemdef->getAlias(name);
 193                 wear = stoi(trim(fnd.next("")));
 194         }
 195         else
 196         {
 197                 do  // This loop is just to allow "break;"
 198                 {
 199                         // The real thing
 200
 201                         // Apply item aliases
 202                         if (itemdef)
 203                                 name = itemdef->getAlias(name);
 204
 205                         // Read the count
 206                         std::string count_str;
 207                         std::getline(is, count_str, ' ');
 208                         if (count_str.empty()) {
 209                                 count = 1;
 210                                 break;
 211                         }
 212
 213                         count = stoi(count_str);
 214
 215                         // Read the wear
 216                         std::string wear_str;
 217                         std::getline(is, wear_str, ' ');
 218                         if(wear_str.empty())
 219                                 break;
 220
 221                         wear = stoi(wear_str);
 222
 223                         // Read metadata
 224                         metadata.deSerialize(is);
 225
 226                         // In case fields are added after metadata, skip space here:
 227                         //std::getline(is, tmp, ' ');
 228                         //if(!tmp.empty())
 229                         //      throw SerializationError("Unexpected text after metadata");
 230
 231                 } while(false);
 232         }
 233
 234         if (name.empty() || count == 0)
 235                 clear();
 236         else if (itemdef && itemdef->get(name).type == ITEM_TOOL)
 237                 count = 1;
 238 }
 239
 240 void ItemStack::deSerialize(const std::string &str, IItemDefManager *itemdef)
 241 {
 242         std::istringstream is(str, std::ios::binary);
 243         deSerialize(is, itemdef);
 244 }
 245
 246 std::string ItemStack::getItemString(bool include_meta) const
 247 {
 248         std::ostringstream os(std::ios::binary);
 249         serialize(os, include_meta);
 250         return os.str();
 251 }
 252
 253 std::string ItemStack::getDescription(IItemDefManager *itemdef) const
 254 {
 255         std::string desc = metadata.getString("description");
 256         if (desc.empty())
 257                 desc = getDefinition(itemdef).description;
 258         return desc.empty() ? name : desc;
 259 }
 260
 261 std::string ItemStack::getShortDescription(IItemDefManager *itemdef) const
 262 {
 263         std::string desc = metadata.getString("short_description");
 264         if (desc.empty())
 265                 desc = getDefinition(itemdef).short_description;
 266         if (!desc.empty())
 267                 return desc;
 268         // no short_description because of old server version or modified builtin
 269         // return first line of description
 270         std::stringstream sstr(getDescription(itemdef));
 271         std::getline(sstr, desc, '\n');
 272         return desc;
 273 }
 274
 275
 276 ItemStack ItemStack::addItem(ItemStack newitem, IItemDefManager *itemdef)
 277 {
 278         // If the item is empty or the position invalid, bail out
 279         if(newitem.empty())
 280         {
 281                 // nothing can be added trivially
 282         }
 283         // If this is an empty item, it's an easy job.
 284         else if(empty())
 285         {
 286                 *this = newitem;
 287                 newitem.clear();
 288         }
 289         // If item name or metadata differs, bail out
 290         else if (name != newitem.name
 291                 || metadata != newitem.metadata)
 292         {
 293                 // cannot be added
 294         }
 295         // If the item fits fully, add counter and delete it
 296         else if(newitem.count <= freeSpace(itemdef))
 297         {
 298                 add(newitem.count);
 299                 newitem.clear();
 300         }
 301         // Else the item does not fit fully. Add all that fits and return
 302         // the rest.
 303         else
 304         {
 305                 u16 freespace = freeSpace(itemdef);
 306                 add(freespace);
 307                 newitem.remove(freespace);
 308         }
 309
 310         return newitem;
 311 }
 312
 313 bool ItemStack::itemFits(ItemStack newitem,
 314                 ItemStack *restitem,
 315                 IItemDefManager *itemdef) const
 316 {
 317
 318         // If the item is empty or the position invalid, bail out
 319         if(newitem.empty())
 320         {
 321                 // nothing can be added trivially
 322         }
 323         // If this is an empty item, it's an easy job.
 324         else if(empty())
 325         {
 326                 newitem.clear();
 327         }
 328         // If item name or metadata differs, bail out
 329         else if (name != newitem.name
 330                 || metadata != newitem.metadata)
 331         {
 332                 // cannot be added
 333         }
 334         // If the item fits fully, delete it
 335         else if(newitem.count <= freeSpace(itemdef))
 336         {
 337                 newitem.clear();
 338         }
 339         // Else the item does not fit fully. Return the rest.
 340         else
 341         {
 342                 u16 freespace = freeSpace(itemdef);
 343                 newitem.remove(freespace);
 344         }
 345
 346         if(restitem)
 347                 *restitem = newitem;
 348
 349         return newitem.empty();
 350 }
 351
 352 ItemStack ItemStack::takeItem(u32 takecount)
 353 {
 354         if(takecount == 0 || count == 0)
 355                 return ItemStack();
 356
 357         ItemStack result = *this;
 358         if(takecount >= count)
 359         {
 360                 // Take all
 361                 clear();
 362         }
 363         else
 364         {
 365                 // Take part
 366                 remove(takecount);
 367                 result.count = takecount;
 368         }
 369         return result;
 370 }
 371
 372 ItemStack ItemStack::peekItem(u32 peekcount) const
 373 {
 374         if(peekcount == 0 || count == 0)
 375                 return ItemStack();
 376
 377         ItemStack result = *this;
 378         if(peekcount < count)
 379                 result.count = peekcount;
 380         return result;
 381 }
 382
 383 /*
 384         Inventory
 385 */
 386
 387 InventoryList::InventoryList(const std::string &name, u32 size, IItemDefManager *itemdef):
 388         m_name(name),
 389         m_size(size),
 390         m_itemdef(itemdef)
 391 {
 392         clearItems();
 393 }
 394
 395 void InventoryList::clearItems()
 396 {
 397         m_items.clear();
 398
 399         for (u32 i=0; i < m_size; i++) {
 400                 m_items.emplace_back();
 401         }
 402
 403         setModified();
 404 }
 405
 406 void InventoryList::setSize(u32 newsize)
 407 {
 408         if (newsize == m_items.size())
 409                 return;
 410
 411         m_items.resize(newsize);
 412         m_size = newsize;
 413         setModified();
 414 }
 415
 416 void InventoryList::setWidth(u32 newwidth)
 417 {
 418         m_width = newwidth;
 419         setModified();
 420 }
 421
 422 void InventoryList::setName(const std::string &name)
 423 {
 424         m_name = name;
 425         setModified();
 426 }
 427
 428 void InventoryList::serialize(std::ostream &os, bool incremental) const
 429 {
 430         //os.imbue(std::locale("C"));
 431
 432         os<<"Width "<<m_width<<"\n";
 433
 434         for (const auto &item : m_items) {
 435                 if (item.empty()) {
 436                         os<<"Empty";
 437                 } else {
 438                         os<<"Item ";
 439                         item.serialize(os);
 440                 }
 441                 // TODO: Implement this:
 442                 // if (!incremental || item.checkModified())
 443                 // os << "Keep";
 444                 os<<"\n";
 445         }
 446
 447         os<<"EndInventoryList\n";
 448 }
 449
 450 void InventoryList::deSerialize(std::istream &is)
 451 {
 452         //is.imbue(std::locale("C"));
 453         setModified();
 454
 455         u32 item_i = 0;
 456         m_width = 0;
 457
 458         while (is.good()) {
 459                 std::string line;
 460                 std::getline(is, line, '\n');
 461
 462                 std::istringstream iss(line);
 463
 464                 std::string name;
 465                 std::getline(iss, name, ' ');
 466
 467                 if (name == "EndInventoryList" || name == "end") {
 468                         // If partial incremental: Clear leftover items (should not happen!)
 469                         for (size_t i = item_i; i < m_items.size(); ++i)
 470                                 m_items[i].clear();
 471                         return;
 472                 }
 473
 474                 if (name == "Width") {
 475                         iss >> m_width;
 476                         if (iss.fail())
 477                                 throw SerializationError("incorrect width property");
 478                 }
 479                 else if(name == "Item")
 480                 {
 481                         if(item_i > getSize() - 1)
 482                                 throw SerializationError("too many items");
 483                         ItemStack item;
 484                         item.deSerialize(iss, m_itemdef);
 485                         m_items[item_i++] = item;
 486                 }
 487                 else if(name == "Empty")
 488                 {
 489                         if(item_i > getSize() - 1)
 490                                 throw SerializationError("too many items");
 491                         m_items[item_i++].clear();
 492                 } else if (name == "Keep") {
 493                         ++item_i; // Unmodified item
 494                 }
 495         }
 496
 497         // Contents given to deSerialize() were not terminated properly: throw error.
 498
 499         std::ostringstream ss;
 500         ss << "Malformatted inventory list. list="
 501                 << m_name << ", read " << item_i << " of " << getSize()
 502                 << " ItemStacks." << std::endl;
 503         throw SerializationError(ss.str());
 504 }
 505
 506 InventoryList::InventoryList(const InventoryList &other)
 507 {
 508         *this = other;
 509 }
 510
 511 InventoryList & InventoryList::operator = (const InventoryList &other)
 512 {
 513         m_items = other.m_items;
 514         m_size = other.m_size;
 515         m_width = other.m_width;
 516         m_name = other.m_name;
 517         m_itemdef = other.m_itemdef;
 518         //setDirty(true);
 519
 520         return *this;
 521 }
 522
 523 bool InventoryList::operator == (const InventoryList &other) const
 524 {
 525         if(m_size != other.m_size)
 526                 return false;
 527         if(m_width != other.m_width)
 528                 return false;
 529         if(m_name != other.m_name)
 530                 return false;
 531         for (u32 i = 0; i < m_items.size(); i++)
 532                 if (m_items[i] != other.m_items[i])
 533                         return false;
 534
 535         return true;
 536 }
 537
 538 const std::string &InventoryList::getName() const
 539 {
 540         return m_name;
 541 }
 542
 543 u32 InventoryList::getSize() const
 544 {
 545         return m_items.size();
 546 }
 547
 548 u32 InventoryList::getWidth() const
 549 {
 550         return m_width;
 551 }
 552
 553 u32 InventoryList::getUsedSlots() const
 554 {
 555         u32 num = 0;
 556         for (const auto &m_item : m_items) {
 557                 if (!m_item.empty())
 558                         num++;
 559         }
 560         return num;
 561 }
 562
 563 const ItemStack& InventoryList::getItem(u32 i) const
 564 {
 565         assert(i < m_size); // Pre-condition
 566         return m_items[i];
 567 }
 568
 569 ItemStack& InventoryList::getItem(u32 i)
 570 {
 571         assert(i < m_size); // Pre-condition
 572         return m_items[i];
 573 }
 574
 575 ItemStack InventoryList::changeItem(u32 i, const ItemStack &newitem)
 576 {
 577         if(i >= m_items.size())
 578                 return newitem;
 579
 580         ItemStack olditem = m_items[i];
 581         m_items[i] = newitem;
 582         setModified();
 583         return olditem;
 584 }
 585
 586 void InventoryList::deleteItem(u32 i)
 587 {
 588         assert(i < m_items.size()); // Pre-condition
 589         m_items[i].clear();
 590         setModified();
 591 }
 592
 593 ItemStack InventoryList::addItem(const ItemStack &newitem_)
 594 {
 595         ItemStack newitem = newitem_;
 596
 597         if(newitem.empty())
 598                 return newitem;
 599
 600         /*
 601                 First try to find if it could be added to some existing items
 602         */
 603         for(u32 i=0; i<m_items.size(); i++)
 604         {
 605                 // Ignore empty slots
 606                 if(m_items[i].empty())
 607                         continue;
 608                 // Try adding
 609                 newitem = addItem(i, newitem);
 610                 if(newitem.empty())
 611                         return newitem; // All was eaten
 612         }
 613
 614         /*
 615                 Then try to add it to empty slots
 616         */
 617         for(u32 i=0; i<m_items.size(); i++)
 618         {
 619                 // Ignore unempty slots
 620                 if(!m_items[i].empty())
 621                         continue;
 622                 // Try adding
 623                 newitem = addItem(i, newitem);
 624                 if(newitem.empty())
 625                         return newitem; // All was eaten
 626         }
 627
 628         // Return leftover
 629         return newitem;
 630 }
 631
 632 ItemStack InventoryList::addItem(u32 i, const ItemStack &newitem)
 633 {
 634         if(i >= m_items.size())
 635                 return newitem;
 636
 637         ItemStack leftover = m_items[i].addItem(newitem, m_itemdef);
 638         if (leftover != newitem)
 639                 setModified();
 640         return leftover;
 641 }
 642
 643 bool InventoryList::itemFits(const u32 i, const ItemStack &newitem,
 644                 ItemStack *restitem) const
 645 {
 646         if(i >= m_items.size())
 647         {
 648                 if(restitem)
 649                         *restitem = newitem;
 650                 return false;
 651         }
 652
 653         return m_items[i].itemFits(newitem, restitem, m_itemdef);
 654 }
 655
 656 bool InventoryList::roomForItem(const ItemStack &item_) const
 657 {
 658         ItemStack item = item_;
 659         ItemStack leftover;
 660         for(u32 i=0; i<m_items.size(); i++)
 661         {
 662                 if(itemFits(i, item, &leftover))
 663                         return true;
 664                 item = leftover;
 665         }
 666         return false;
 667 }
 668
 669 bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
 670 {
 671         u32 count = item.count;
 672         if (count == 0)
 673                 return true;
 674
 675         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 676                 if (count == 0)
 677                         break;
 678                 if (i->name == item.name && (!match_meta || (i->metadata == item.metadata))) {
 679                         if (i->count >= count)
 680                                 return true;
 681
 682                         count -= i->count;
 683                 }
 684         }
 685         return false;
 686 }
 687
 688 ItemStack InventoryList::removeItem(const ItemStack &item)
 689 {
 690         ItemStack removed;
 691         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 692                 if (i->name == item.name) {
 693                         u32 still_to_remove = item.count - removed.count;
 694                         ItemStack leftover = removed.addItem(i->takeItem(still_to_remove),
 695                                         m_itemdef);
 696                         // Allow oversized stacks
 697                         removed.count += leftover.count;
 698
 699                         if (removed.count == item.count)
 700                                 break;
 701                 }
 702         }
 703         if (!removed.empty())
 704                 setModified();
 705         return removed;
 706 }
 707
 708 ItemStack InventoryList::takeItem(u32 i, u32 takecount)
 709 {
 710         if(i >= m_items.size())
 711                 return ItemStack();
 712
 713         ItemStack taken = m_items[i].takeItem(takecount);
 714         if (!taken.empty())
 715                 setModified();
 716         return taken;
 717 }
 718
 719 void InventoryList::moveItemSomewhere(u32 i, InventoryList *dest, u32 count)
 720 {
 721         // Take item from source list
 722         ItemStack item1;
 723         if (count == 0)
 724                 item1 = changeItem(i, ItemStack());
 725         else
 726                 item1 = takeItem(i, count);
 727
 728         if (item1.empty())
 729                 return;
 730
 731         ItemStack leftover;
 732         leftover = dest->addItem(item1);
 733
 734         if (!leftover.empty()) {
 735                 // Add the remaining part back to the source item
 736                 addItem(i, leftover);
 737         }
 738 }
 739
 740 u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
 741                 u32 count, bool swap_if_needed, bool *did_swap)
 742 {
 743         if (this == dest && i == dest_i)
 744                 return count;
 745
 746         // Take item from source list
 747         ItemStack item1;
 748         if (count == 0)
 749                 item1 = changeItem(i, ItemStack());
 750         else
 751                 item1 = takeItem(i, count);
 752
 753         if (item1.empty())
 754                 return 0;
 755
 756         // Try to add the item to destination list
 757         u32 oldcount = item1.count;
 758         item1 = dest->addItem(dest_i, item1);
 759
 760         // If something is returned, the item was not fully added
 761         if (!item1.empty()) {
 762                 // If olditem is returned, nothing was added.
 763                 bool nothing_added = (item1.count == oldcount);
 764
 765                 // If something else is returned, part of the item was left unadded.
 766                 // Add the other part back to the source item
 767                 addItem(i, item1);
 768
 769                 // If olditem is returned, nothing was added.
 770                 // Swap the items
 771                 if (nothing_added && swap_if_needed) {
 772                         // Tell that we swapped
 773                         if (did_swap != NULL) {
 774                                 *did_swap = true;
 775                         }
 776                         // Take item from source list
 777                         item1 = changeItem(i, ItemStack());
 778                         // Adding was not possible, swap the items.
 779                         ItemStack item2 = dest->changeItem(dest_i, item1);
 780                         // Put item from destination list to the source list
 781                         changeItem(i, item2);
 782                 }
 783         }
 784         return (oldcount - item1.count);
 785 }
 786
 787 /*
 788         Inventory
 789 */
 790
 791 Inventory::~Inventory()
 792 {
 793         clear();
 794 }
 795
 796 void Inventory::clear()
 797 {
 798         for (auto &m_list : m_lists) {
 799                 delete m_list;
 800         }
 801         m_lists.clear();
 802         setModified();
 803 }
 804
 805 Inventory::Inventory(IItemDefManager *itemdef)
 806 {
 807         m_itemdef = itemdef;
 808         setModified();
 809 }
 810
 811 Inventory::Inventory(const Inventory &other)
 812 {
 813         *this = other;
 814 }
 815
 816 Inventory & Inventory::operator = (const Inventory &other)
 817 {
 818         // Gracefully handle self assignment
 819         if(this != &other)
 820         {
 821                 clear();
 822                 m_itemdef = other.m_itemdef;
 823                 for (InventoryList *list : other.m_lists) {
 824                         m_lists.push_back(new InventoryList(*list));
 825                 }
 826                 setModified();
 827         }
 828         return *this;
 829 }
 830
 831 bool Inventory::operator == (const Inventory &other) const
 832 {
 833         if(m_lists.size() != other.m_lists.size())
 834                 return false;
 835
 836         for(u32 i=0; i<m_lists.size(); i++)
 837         {
 838                 if(*m_lists[i] != *other.m_lists[i])
 839                         return false;
 840         }
 841         return true;
 842 }
 843
 844 void Inventory::serialize(std::ostream &os, bool incremental) const
 845 {
 846         //std::cout << "Serialize " << (int)incremental << ", n=" << m_lists.size() << std::endl;
 847         for (const InventoryList *list : m_lists) {
 848                 if (!incremental || list->checkModified()) {
 849                         os << "List " << list->getName() << " " << list->getSize() << "\n";
 850                         list->serialize(os, incremental);
 851                 } else {
 852                         os << "KeepList " << list->getName() << "\n";
 853                 }
 854         }
 855
 856         os<<"EndInventory\n";
 857 }
 858
 859 void Inventory::deSerialize(std::istream &is)
 860 {
 861         std::vector<InventoryList *> new_lists;
 862         new_lists.reserve(m_lists.size());
 863
 864         while (is.good()) {
 865                 std::string line;
 866                 std::getline(is, line, '\n');
 867
 868                 std::istringstream iss(line);
 869
 870                 std::string name;
 871                 std::getline(iss, name, ' ');
 872
 873                 if (name == "EndInventory" || name == "end") {
 874                         // Remove all lists that were not sent
 875                         for (auto &list : m_lists) {
 876                                 if (std::find(new_lists.begin(), new_lists.end(), list) != new_lists.end())
 877                                         continue;
 878
 879                                 delete list;
 880                                 list = nullptr;
 881                                 setModified();
 882                         }
 883                         m_lists.erase(std::remove(m_lists.begin(), m_lists.end(),
 884                                         nullptr), m_lists.end());
 885                         return;
 886                 }
 887
 888                 if (name == "List") {
 889                         std::string listname;
 890                         u32 listsize;
 891
 892                         std::getline(iss, listname, ' ');
 893                         iss>>listsize;
 894
 895                         InventoryList *list = getList(listname);
 896                         bool create_new = !list;
 897                         if (create_new)
 898                                 list = new InventoryList(listname, listsize, m_itemdef);
 899                         else
 900                                 list->setSize(listsize);
 901                         list->deSerialize(is);
 902
 903                         new_lists.push_back(list);
 904                         if (create_new)
 905                                 m_lists.push_back(list);
 906
 907                 } else if (name == "KeepList") {
 908                         // Incrementally sent list
 909                         std::string listname;
 910                         std::getline(iss, listname, ' ');
 911
 912                         InventoryList *list = getList(listname);
 913                         if (list) {
 914                                 new_lists.push_back(list);
 915                         } else {
 916                                 errorstream << "Inventory::deSerialize(): Tried to keep list '" <<
 917                                         listname << "' which is non-existent." << std::endl;
 918                         }
 919                 }
 920                 // Any additional fields will throw errors when received by a client
 921                 // older than PROTOCOL_VERSION 38
 922         }
 923
 924         // Contents given to deSerialize() were not terminated properly: throw error.
 925
 926         std::ostringstream ss;
 927         ss << "Malformatted inventory (damaged?). "
 928                 << m_lists.size() << " lists read." << std::endl;
 929         throw SerializationError(ss.str());
 930 }
 931
 932 InventoryList * Inventory::addList(const std::string &name, u32 size)
 933 {
 934         setModified();
 935
 936         // Remove existing lists
 937         s32 i = getListIndex(name);
 938         if (i != -1) {
 939                 delete m_lists[i];
 940                 m_lists[i] = new InventoryList(name, size, m_itemdef);
 941                 m_lists[i]->setModified();
 942                 return m_lists[i];
 943         }
 944
 945         //don't create list with invalid name
 946         if (name.find(' ') != std::string::npos)
 947                 return nullptr;
 948
 949         InventoryList *list = new InventoryList(name, size, m_itemdef);
 950         list->setModified();
 951         m_lists.push_back(list);
 952         return list;
 953 }
 954
 955 InventoryList * Inventory::getList(const std::string &name)
 956 {
 957         s32 i = getListIndex(name);
 958         if(i == -1)
 959                 return nullptr;
 960         return m_lists[i];
 961 }
 962
 963 std::vector<const InventoryList*> Inventory::getLists()
 964 {
 965         std::vector<const InventoryList*> lists;
 966         lists.reserve(m_lists.size());
 967         for (auto list : m_lists) {
 968                 lists.push_back(list);
 969         }
 970         return lists;
 971 }
 972
 973 bool Inventory::deleteList(const std::string &name)
 974 {
 975         s32 i = getListIndex(name);
 976         if(i == -1)
 977                 return false;
 978
 979         setModified();
 980         delete m_lists[i];
 981         m_lists.erase(m_lists.begin() + i);
 982         return true;
 983 }
 984
 985 const InventoryList *Inventory::getList(const std::string &name) const
 986 {
 987         s32 i = getListIndex(name);
 988         if(i == -1)
 989                 return nullptr;
 990         return m_lists[i];
 991 }
 992
 993 s32 Inventory::getListIndex(const std::string &name) const
 994 {
 995         for(u32 i=0; i<m_lists.size(); i++)
 996         {
 997                 if(m_lists[i]->getName() == name)
 998                         return i;
 999         }
1000         return -1;
1001 }
1002
1003 //END