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
 262 ItemStack ItemStack::addItem(ItemStack newitem, IItemDefManager *itemdef)
 263 {
 264         // If the item is empty or the position invalid, bail out
 265         if(newitem.empty())
 266         {
 267                 // nothing can be added trivially
 268         }
 269         // If this is an empty item, it's an easy job.
 270         else if(empty())
 271         {
 272                 *this = newitem;
 273                 newitem.clear();
 274         }
 275         // If item name or metadata differs, bail out
 276         else if (name != newitem.name
 277                 || metadata != newitem.metadata)
 278         {
 279                 // cannot be added
 280         }
 281         // If the item fits fully, add counter and delete it
 282         else if(newitem.count <= freeSpace(itemdef))
 283         {
 284                 add(newitem.count);
 285                 newitem.clear();
 286         }
 287         // Else the item does not fit fully. Add all that fits and return
 288         // the rest.
 289         else
 290         {
 291                 u16 freespace = freeSpace(itemdef);
 292                 add(freespace);
 293                 newitem.remove(freespace);
 294         }
 295
 296         return newitem;
 297 }
 298
 299 bool ItemStack::itemFits(ItemStack newitem,
 300                 ItemStack *restitem,
 301                 IItemDefManager *itemdef) const
 302 {
 303
 304         // If the item is empty or the position invalid, bail out
 305         if(newitem.empty())
 306         {
 307                 // nothing can be added trivially
 308         }
 309         // If this is an empty item, it's an easy job.
 310         else if(empty())
 311         {
 312                 newitem.clear();
 313         }
 314         // If item name or metadata differs, bail out
 315         else if (name != newitem.name
 316                 || metadata != newitem.metadata)
 317         {
 318                 // cannot be added
 319         }
 320         // If the item fits fully, delete it
 321         else if(newitem.count <= freeSpace(itemdef))
 322         {
 323                 newitem.clear();
 324         }
 325         // Else the item does not fit fully. Return the rest.
 326         else
 327         {
 328                 u16 freespace = freeSpace(itemdef);
 329                 newitem.remove(freespace);
 330         }
 331
 332         if(restitem)
 333                 *restitem = newitem;
 334
 335         return newitem.empty();
 336 }
 337
 338 ItemStack ItemStack::takeItem(u32 takecount)
 339 {
 340         if(takecount == 0 || count == 0)
 341                 return ItemStack();
 342
 343         ItemStack result = *this;
 344         if(takecount >= count)
 345         {
 346                 // Take all
 347                 clear();
 348         }
 349         else
 350         {
 351                 // Take part
 352                 remove(takecount);
 353                 result.count = takecount;
 354         }
 355         return result;
 356 }
 357
 358 ItemStack ItemStack::peekItem(u32 peekcount) const
 359 {
 360         if(peekcount == 0 || count == 0)
 361                 return ItemStack();
 362
 363         ItemStack result = *this;
 364         if(peekcount < count)
 365                 result.count = peekcount;
 366         return result;
 367 }
 368
 369 /*
 370         Inventory
 371 */
 372
 373 InventoryList::InventoryList(const std::string &name, u32 size, IItemDefManager *itemdef):
 374         m_name(name),
 375         m_size(size),
 376         m_itemdef(itemdef)
 377 {
 378         clearItems();
 379 }
 380
 381 void InventoryList::clearItems()
 382 {
 383         m_items.clear();
 384
 385         for (u32 i=0; i < m_size; i++) {
 386                 m_items.emplace_back();
 387         }
 388
 389         setModified();
 390 }
 391
 392 void InventoryList::setSize(u32 newsize)
 393 {
 394         if (newsize == m_items.size())
 395                 return;
 396
 397         m_items.resize(newsize);
 398         m_size = newsize;
 399         setModified();
 400 }
 401
 402 void InventoryList::setWidth(u32 newwidth)
 403 {
 404         m_width = newwidth;
 405         setModified();
 406 }
 407
 408 void InventoryList::setName(const std::string &name)
 409 {
 410         m_name = name;
 411         setModified();
 412 }
 413
 414 void InventoryList::serialize(std::ostream &os, bool incremental) const
 415 {
 416         //os.imbue(std::locale("C"));
 417
 418         os<<"Width "<<m_width<<"\n";
 419
 420         for (const auto &item : m_items) {
 421                 if (item.empty()) {
 422                         os<<"Empty";
 423                 } else {
 424                         os<<"Item ";
 425                         item.serialize(os);
 426                 }
 427                 // TODO: Implement this:
 428                 // if (!incremental || item.checkModified())
 429                 // os << "Keep";
 430                 os<<"\n";
 431         }
 432
 433         os<<"EndInventoryList\n";
 434 }
 435
 436 void InventoryList::deSerialize(std::istream &is)
 437 {
 438         //is.imbue(std::locale("C"));
 439         setModified();
 440
 441         u32 item_i = 0;
 442         m_width = 0;
 443
 444         while (is.good()) {
 445                 std::string line;
 446                 std::getline(is, line, '\n');
 447
 448                 std::istringstream iss(line);
 449                 //iss.imbue(std::locale("C"));
 450
 451                 std::string name;
 452                 std::getline(iss, name, ' ');
 453
 454                 if (name == "EndInventoryList" || name == "end") {
 455                         // If partial incremental: Clear leftover items (should not happen!)
 456                         for (size_t i = item_i; i < m_items.size(); ++i)
 457                                 m_items[i].clear();
 458                         return;
 459                 }
 460
 461                 if (name == "Width") {
 462                         iss >> m_width;
 463                         if (iss.fail())
 464                                 throw SerializationError("incorrect width property");
 465                 }
 466                 else if(name == "Item")
 467                 {
 468                         if(item_i > getSize() - 1)
 469                                 throw SerializationError("too many items");
 470                         ItemStack item;
 471                         item.deSerialize(iss, m_itemdef);
 472                         m_items[item_i++] = item;
 473                 }
 474                 else if(name == "Empty")
 475                 {
 476                         if(item_i > getSize() - 1)
 477                                 throw SerializationError("too many items");
 478                         m_items[item_i++].clear();
 479                 } else if (name == "Keep") {
 480                         ++item_i; // Unmodified item
 481                 }
 482         }
 483
 484         // Contents given to deSerialize() were not terminated properly: throw error.
 485
 486         std::ostringstream ss;
 487         ss << "Malformatted inventory list. list="
 488                 << m_name << ", read " << item_i << " of " << getSize()
 489                 << " ItemStacks." << std::endl;
 490         throw SerializationError(ss.str());
 491 }
 492
 493 InventoryList::InventoryList(const InventoryList &other)
 494 {
 495         *this = other;
 496 }
 497
 498 InventoryList & InventoryList::operator = (const InventoryList &other)
 499 {
 500         m_items = other.m_items;
 501         m_size = other.m_size;
 502         m_width = other.m_width;
 503         m_name = other.m_name;
 504         m_itemdef = other.m_itemdef;
 505         //setDirty(true);
 506
 507         return *this;
 508 }
 509
 510 bool InventoryList::operator == (const InventoryList &other) const
 511 {
 512         if(m_size != other.m_size)
 513                 return false;
 514         if(m_width != other.m_width)
 515                 return false;
 516         if(m_name != other.m_name)
 517                 return false;
 518         for (u32 i = 0; i < m_items.size(); i++)
 519                 if (m_items[i] != other.m_items[i])
 520                         return false;
 521
 522         return true;
 523 }
 524
 525 const std::string &InventoryList::getName() const
 526 {
 527         return m_name;
 528 }
 529
 530 u32 InventoryList::getSize() const
 531 {
 532         return m_items.size();
 533 }
 534
 535 u32 InventoryList::getWidth() const
 536 {
 537         return m_width;
 538 }
 539
 540 u32 InventoryList::getUsedSlots() const
 541 {
 542         u32 num = 0;
 543         for (const auto &m_item : m_items) {
 544                 if (!m_item.empty())
 545                         num++;
 546         }
 547         return num;
 548 }
 549
 550 u32 InventoryList::getFreeSlots() const
 551 {
 552         return getSize() - getUsedSlots();
 553 }
 554
 555 const ItemStack& InventoryList::getItem(u32 i) const
 556 {
 557         assert(i < m_size); // Pre-condition
 558         return m_items[i];
 559 }
 560
 561 ItemStack& InventoryList::getItem(u32 i)
 562 {
 563         assert(i < m_size); // Pre-condition
 564         return m_items[i];
 565 }
 566
 567 ItemStack InventoryList::changeItem(u32 i, const ItemStack &newitem)
 568 {
 569         if(i >= m_items.size())
 570                 return newitem;
 571
 572         ItemStack olditem = m_items[i];
 573         m_items[i] = newitem;
 574         setModified();
 575         return olditem;
 576 }
 577
 578 void InventoryList::deleteItem(u32 i)
 579 {
 580         assert(i < m_items.size()); // Pre-condition
 581         m_items[i].clear();
 582         setModified();
 583 }
 584
 585 ItemStack InventoryList::addItem(const ItemStack &newitem_)
 586 {
 587         ItemStack newitem = newitem_;
 588
 589         if(newitem.empty())
 590                 return newitem;
 591
 592         /*
 593                 First try to find if it could be added to some existing items
 594         */
 595         for(u32 i=0; i<m_items.size(); i++)
 596         {
 597                 // Ignore empty slots
 598                 if(m_items[i].empty())
 599                         continue;
 600                 // Try adding
 601                 newitem = addItem(i, newitem);
 602                 if(newitem.empty())
 603                         return newitem; // All was eaten
 604         }
 605
 606         /*
 607                 Then try to add it to empty slots
 608         */
 609         for(u32 i=0; i<m_items.size(); i++)
 610         {
 611                 // Ignore unempty slots
 612                 if(!m_items[i].empty())
 613                         continue;
 614                 // Try adding
 615                 newitem = addItem(i, newitem);
 616                 if(newitem.empty())
 617                         return newitem; // All was eaten
 618         }
 619
 620         // Return leftover
 621         return newitem;
 622 }
 623
 624 ItemStack InventoryList::addItem(u32 i, const ItemStack &newitem)
 625 {
 626         if(i >= m_items.size())
 627                 return newitem;
 628
 629         ItemStack leftover = m_items[i].addItem(newitem, m_itemdef);
 630         if (leftover != newitem)
 631                 setModified();
 632         return leftover;
 633 }
 634
 635 bool InventoryList::itemFits(const u32 i, const ItemStack &newitem,
 636                 ItemStack *restitem) const
 637 {
 638         if(i >= m_items.size())
 639         {
 640                 if(restitem)
 641                         *restitem = newitem;
 642                 return false;
 643         }
 644
 645         return m_items[i].itemFits(newitem, restitem, m_itemdef);
 646 }
 647
 648 bool InventoryList::roomForItem(const ItemStack &item_) const
 649 {
 650         ItemStack item = item_;
 651         ItemStack leftover;
 652         for(u32 i=0; i<m_items.size(); i++)
 653         {
 654                 if(itemFits(i, item, &leftover))
 655                         return true;
 656                 item = leftover;
 657         }
 658         return false;
 659 }
 660
 661 bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
 662 {
 663         u32 count = item.count;
 664         if (count == 0)
 665                 return true;
 666
 667         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 668                 if (count == 0)
 669                         break;
 670                 if (i->name == item.name && (!match_meta || (i->metadata == item.metadata))) {
 671                         if (i->count >= count)
 672                                 return true;
 673
 674                         count -= i->count;
 675                 }
 676         }
 677         return false;
 678 }
 679
 680 ItemStack InventoryList::removeItem(const ItemStack &item)
 681 {
 682         ItemStack removed;
 683         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 684                 if (i->name == item.name) {
 685                         u32 still_to_remove = item.count - removed.count;
 686                         ItemStack leftover = removed.addItem(i->takeItem(still_to_remove),
 687                                         m_itemdef);
 688                         // Allow oversized stacks
 689                         removed.count += leftover.count;
 690
 691                         if (removed.count == item.count)
 692                                 break;
 693                 }
 694         }
 695         if (!removed.empty())
 696                 setModified();
 697         return removed;
 698 }
 699
 700 ItemStack InventoryList::takeItem(u32 i, u32 takecount)
 701 {
 702         if(i >= m_items.size())
 703                 return ItemStack();
 704
 705         ItemStack taken = m_items[i].takeItem(takecount);
 706         if (!taken.empty())
 707                 setModified();
 708         return taken;
 709 }
 710
 711 void InventoryList::moveItemSomewhere(u32 i, InventoryList *dest, u32 count)
 712 {
 713         // Take item from source list
 714         ItemStack item1;
 715         if (count == 0)
 716                 item1 = changeItem(i, ItemStack());
 717         else
 718                 item1 = takeItem(i, count);
 719
 720         if (item1.empty())
 721                 return;
 722
 723         ItemStack leftover;
 724         leftover = dest->addItem(item1);
 725
 726         if (!leftover.empty()) {
 727                 // Add the remaining part back to the source item
 728                 addItem(i, leftover);
 729         }
 730 }
 731
 732 u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
 733                 u32 count, bool swap_if_needed, bool *did_swap)
 734 {
 735         if (this == dest && i == dest_i)
 736                 return count;
 737
 738         // Take item from source list
 739         ItemStack item1;
 740         if (count == 0)
 741                 item1 = changeItem(i, ItemStack());
 742         else
 743                 item1 = takeItem(i, count);
 744
 745         if (item1.empty())
 746                 return 0;
 747
 748         // Try to add the item to destination list
 749         u32 oldcount = item1.count;
 750         item1 = dest->addItem(dest_i, item1);
 751
 752         // If something is returned, the item was not fully added
 753         if (!item1.empty()) {
 754                 // If olditem is returned, nothing was added.
 755                 bool nothing_added = (item1.count == oldcount);
 756
 757                 // If something else is returned, part of the item was left unadded.
 758                 // Add the other part back to the source item
 759                 addItem(i, item1);
 760
 761                 // If olditem is returned, nothing was added.
 762                 // Swap the items
 763                 if (nothing_added && swap_if_needed) {
 764                         // Tell that we swapped
 765                         if (did_swap != NULL) {
 766                                 *did_swap = true;
 767                         }
 768                         // Take item from source list
 769                         item1 = changeItem(i, ItemStack());
 770                         // Adding was not possible, swap the items.
 771                         ItemStack item2 = dest->changeItem(dest_i, item1);
 772                         // Put item from destination list to the source list
 773                         changeItem(i, item2);
 774                 }
 775         }
 776         return (oldcount - item1.count);
 777 }
 778
 779 /*
 780         Inventory
 781 */
 782
 783 Inventory::~Inventory()
 784 {
 785         clear();
 786 }
 787
 788 void Inventory::clear()
 789 {
 790         for (auto &m_list : m_lists) {
 791                 delete m_list;
 792         }
 793         m_lists.clear();
 794         setModified();
 795 }
 796
 797 Inventory::Inventory(IItemDefManager *itemdef)
 798 {
 799         m_itemdef = itemdef;
 800         setModified();
 801 }
 802
 803 Inventory::Inventory(const Inventory &other)
 804 {
 805         *this = other;
 806 }
 807
 808 Inventory & Inventory::operator = (const Inventory &other)
 809 {
 810         // Gracefully handle self assignment
 811         if(this != &other)
 812         {
 813                 clear();
 814                 m_itemdef = other.m_itemdef;
 815                 for (InventoryList *list : other.m_lists) {
 816                         m_lists.push_back(new InventoryList(*list));
 817                 }
 818                 setModified();
 819         }
 820         return *this;
 821 }
 822
 823 bool Inventory::operator == (const Inventory &other) const
 824 {
 825         if(m_lists.size() != other.m_lists.size())
 826                 return false;
 827
 828         for(u32 i=0; i<m_lists.size(); i++)
 829         {
 830                 if(*m_lists[i] != *other.m_lists[i])
 831                         return false;
 832         }
 833         return true;
 834 }
 835
 836 void Inventory::serialize(std::ostream &os, bool incremental) const
 837 {
 838         //std::cout << "Serialize " << (int)incremental << ", n=" << m_lists.size() << std::endl;
 839         for (const InventoryList *list : m_lists) {
 840                 if (!incremental || list->checkModified()) {
 841                         os << "List " << list->getName() << " " << list->getSize() << "\n";
 842                         list->serialize(os, incremental);
 843                 } else {
 844                         os << "KeepList " << list->getName() << "\n";
 845                 }
 846         }
 847
 848         os<<"EndInventory\n";
 849 }
 850
 851 void Inventory::deSerialize(std::istream &is)
 852 {
 853         std::vector<InventoryList *> new_lists;
 854         new_lists.reserve(m_lists.size());
 855
 856         while (is.good()) {
 857                 std::string line;
 858                 std::getline(is, line, '\n');
 859
 860                 std::istringstream iss(line);
 861
 862                 std::string name;
 863                 std::getline(iss, name, ' ');
 864
 865                 if (name == "EndInventory" || name == "end") {
 866                         // Remove all lists that were not sent
 867                         for (auto &list : m_lists) {
 868                                 if (std::find(new_lists.begin(), new_lists.end(), list) != new_lists.end())
 869                                         continue;
 870
 871                                 delete list;
 872                                 list = nullptr;
 873                                 setModified();
 874                         }
 875                         m_lists.erase(std::remove(m_lists.begin(), m_lists.end(),
 876                                         nullptr), m_lists.end());
 877                         return;
 878                 }
 879
 880                 if (name == "List") {
 881                         std::string listname;
 882                         u32 listsize;
 883
 884                         std::getline(iss, listname, ' ');
 885                         iss>>listsize;
 886
 887                         InventoryList *list = getList(listname);
 888                         bool create_new = !list;
 889                         if (create_new)
 890                                 list = new InventoryList(listname, listsize, m_itemdef);
 891                         else
 892                                 list->setSize(listsize);
 893                         list->deSerialize(is);
 894
 895                         new_lists.push_back(list);
 896                         if (create_new)
 897                                 m_lists.push_back(list);
 898
 899                 } else if (name == "KeepList") {
 900                         // Incrementally sent list
 901                         std::string listname;
 902                         std::getline(iss, listname, ' ');
 903
 904                         InventoryList *list = getList(listname);
 905                         if (list) {
 906                                 new_lists.push_back(list);
 907                         } else {
 908                                 errorstream << "Inventory::deSerialize(): Tried to keep list '" <<
 909                                         listname << "' which is non-existent." << std::endl;
 910                         }
 911                 }
 912                 // Any additional fields will throw errors when received by a client
 913                 // older than PROTOCOL_VERSION 38
 914         }
 915
 916         // Contents given to deSerialize() were not terminated properly: throw error.
 917
 918         std::ostringstream ss;
 919         ss << "Malformatted inventory (damaged?). "
 920                 << m_lists.size() << " lists read." << std::endl;
 921         throw SerializationError(ss.str());
 922 }
 923
 924 InventoryList * Inventory::addList(const std::string &name, u32 size)
 925 {
 926         setModified();
 927         s32 i = getListIndex(name);
 928         if(i != -1)
 929         {
 930                 if(m_lists[i]->getSize() != size)
 931                 {
 932                         delete m_lists[i];
 933                         m_lists[i] = new InventoryList(name, size, m_itemdef);
 934                         m_lists[i]->setModified();
 935                 }
 936                 return m_lists[i];
 937         }
 938
 939
 940         //don't create list with invalid name
 941         if (name.find(' ') != std::string::npos)
 942                 return nullptr;
 943
 944         InventoryList *list = new InventoryList(name, size, m_itemdef);
 945         list->setModified();
 946         m_lists.push_back(list);
 947         return list;
 948 }
 949
 950 InventoryList * Inventory::getList(const std::string &name)
 951 {
 952         s32 i = getListIndex(name);
 953         if(i == -1)
 954                 return NULL;
 955         return m_lists[i];
 956 }
 957
 958 std::vector<const InventoryList*> Inventory::getLists()
 959 {
 960         std::vector<const InventoryList*> lists;
 961         for (auto list : m_lists) {
 962                 lists.push_back(list);
 963         }
 964         return lists;
 965 }
 966
 967 bool Inventory::deleteList(const std::string &name)
 968 {
 969         s32 i = getListIndex(name);
 970         if(i == -1)
 971                 return false;
 972
 973         setModified();
 974         delete m_lists[i];
 975         m_lists.erase(m_lists.begin() + i);
 976         return true;
 977 }
 978
 979 const InventoryList * Inventory::getList(const std::string &name) const
 980 {
 981         s32 i = getListIndex(name);
 982         if(i == -1)
 983                 return NULL;
 984         return m_lists[i];
 985 }
 986
 987 const s32 Inventory::getListIndex(const std::string &name) const
 988 {
 989         for(u32 i=0; i<m_lists.size(); i++)
 990         {
 991                 if(m_lists[i]->getName() == name)
 992                         return i;
 993         }
 994         return -1;
 995 }
 996
 997 //END