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::operator = (const InventoryList &other)
 507 {
 508         m_items = other.m_items;
 509         m_size = other.m_size;
 510         m_width = other.m_width;
 511         m_name = other.m_name;
 512         m_itemdef = other.m_itemdef;
 513         //setDirty(true);
 514
 515         return *this;
 516 }
 517
 518 bool InventoryList::operator == (const InventoryList &other) const
 519 {
 520         if(m_size != other.m_size)
 521                 return false;
 522         if(m_width != other.m_width)
 523                 return false;
 524         if(m_name != other.m_name)
 525                 return false;
 526         for (u32 i = 0; i < m_items.size(); i++)
 527                 if (m_items[i] != other.m_items[i])
 528                         return false;
 529
 530         return true;
 531 }
 532
 533 u32 InventoryList::getUsedSlots() const
 534 {
 535         u32 num = 0;
 536         for (const auto &m_item : m_items) {
 537                 if (!m_item.empty())
 538                         num++;
 539         }
 540         return num;
 541 }
 542
 543 ItemStack InventoryList::changeItem(u32 i, const ItemStack &newitem)
 544 {
 545         if(i >= m_items.size())
 546                 return newitem;
 547
 548         ItemStack olditem = m_items[i];
 549         m_items[i] = newitem;
 550         setModified();
 551         return olditem;
 552 }
 553
 554 void InventoryList::deleteItem(u32 i)
 555 {
 556         assert(i < m_items.size()); // Pre-condition
 557         m_items[i].clear();
 558         setModified();
 559 }
 560
 561 ItemStack InventoryList::addItem(const ItemStack &newitem_)
 562 {
 563         ItemStack newitem = newitem_;
 564
 565         if(newitem.empty())
 566                 return newitem;
 567
 568         /*
 569                 First try to find if it could be added to some existing items
 570         */
 571         for(u32 i=0; i<m_items.size(); i++)
 572         {
 573                 // Ignore empty slots
 574                 if(m_items[i].empty())
 575                         continue;
 576                 // Try adding
 577                 newitem = addItem(i, newitem);
 578                 if(newitem.empty())
 579                         return newitem; // All was eaten
 580         }
 581
 582         /*
 583                 Then try to add it to empty slots
 584         */
 585         for(u32 i=0; i<m_items.size(); i++)
 586         {
 587                 // Ignore unempty slots
 588                 if(!m_items[i].empty())
 589                         continue;
 590                 // Try adding
 591                 newitem = addItem(i, newitem);
 592                 if(newitem.empty())
 593                         return newitem; // All was eaten
 594         }
 595
 596         // Return leftover
 597         return newitem;
 598 }
 599
 600 ItemStack InventoryList::addItem(u32 i, const ItemStack &newitem)
 601 {
 602         if(i >= m_items.size())
 603                 return newitem;
 604
 605         ItemStack leftover = m_items[i].addItem(newitem, m_itemdef);
 606         if (leftover != newitem)
 607                 setModified();
 608         return leftover;
 609 }
 610
 611 bool InventoryList::itemFits(const u32 i, const ItemStack &newitem,
 612                 ItemStack *restitem) const
 613 {
 614         if(i >= m_items.size())
 615         {
 616                 if(restitem)
 617                         *restitem = newitem;
 618                 return false;
 619         }
 620
 621         return m_items[i].itemFits(newitem, restitem, m_itemdef);
 622 }
 623
 624 bool InventoryList::roomForItem(const ItemStack &item_) const
 625 {
 626         ItemStack item = item_;
 627         ItemStack leftover;
 628         for(u32 i=0; i<m_items.size(); i++)
 629         {
 630                 if(itemFits(i, item, &leftover))
 631                         return true;
 632                 item = leftover;
 633         }
 634         return false;
 635 }
 636
 637 bool InventoryList::containsItem(const ItemStack &item, bool match_meta) const
 638 {
 639         u32 count = item.count;
 640         if (count == 0)
 641                 return true;
 642
 643         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 644                 if (count == 0)
 645                         break;
 646                 if (i->name == item.name && (!match_meta || (i->metadata == item.metadata))) {
 647                         if (i->count >= count)
 648                                 return true;
 649
 650                         count -= i->count;
 651                 }
 652         }
 653         return false;
 654 }
 655
 656 ItemStack InventoryList::removeItem(const ItemStack &item)
 657 {
 658         ItemStack removed;
 659         for (auto i = m_items.rbegin(); i != m_items.rend(); ++i) {
 660                 if (i->name == item.name) {
 661                         u32 still_to_remove = item.count - removed.count;
 662                         ItemStack leftover = removed.addItem(i->takeItem(still_to_remove),
 663                                         m_itemdef);
 664                         // Allow oversized stacks
 665                         removed.count += leftover.count;
 666
 667                         if (removed.count == item.count)
 668                                 break;
 669                 }
 670         }
 671         if (!removed.empty())
 672                 setModified();
 673         return removed;
 674 }
 675
 676 ItemStack InventoryList::takeItem(u32 i, u32 takecount)
 677 {
 678         if(i >= m_items.size())
 679                 return ItemStack();
 680
 681         ItemStack taken = m_items[i].takeItem(takecount);
 682         if (!taken.empty())
 683                 setModified();
 684         return taken;
 685 }
 686
 687 void InventoryList::moveItemSomewhere(u32 i, InventoryList *dest, u32 count)
 688 {
 689         // Take item from source list
 690         ItemStack item1;
 691         if (count == 0)
 692                 item1 = changeItem(i, ItemStack());
 693         else
 694                 item1 = takeItem(i, count);
 695
 696         if (item1.empty())
 697                 return;
 698
 699         ItemStack leftover;
 700         leftover = dest->addItem(item1);
 701
 702         if (!leftover.empty()) {
 703                 // Add the remaining part back to the source item
 704                 addItem(i, leftover);
 705         }
 706 }
 707
 708 u32 InventoryList::moveItem(u32 i, InventoryList *dest, u32 dest_i,
 709                 u32 count, bool swap_if_needed, bool *did_swap)
 710 {
 711         if (this == dest && i == dest_i)
 712                 return count;
 713
 714         // Take item from source list
 715         ItemStack item1;
 716         if (count == 0)
 717                 item1 = changeItem(i, ItemStack());
 718         else
 719                 item1 = takeItem(i, count);
 720
 721         if (item1.empty())
 722                 return 0;
 723
 724         // Try to add the item to destination list
 725         u32 oldcount = item1.count;
 726         item1 = dest->addItem(dest_i, item1);
 727
 728         // If something is returned, the item was not fully added
 729         if (!item1.empty()) {
 730                 // If olditem is returned, nothing was added.
 731                 bool nothing_added = (item1.count == oldcount);
 732
 733                 // If something else is returned, part of the item was left unadded.
 734                 // Add the other part back to the source item
 735                 addItem(i, item1);
 736
 737                 // If olditem is returned, nothing was added.
 738                 // Swap the items
 739                 if (nothing_added && swap_if_needed) {
 740                         // Tell that we swapped
 741                         if (did_swap != NULL) {
 742                                 *did_swap = true;
 743                         }
 744                         // Take item from source list
 745                         item1 = changeItem(i, ItemStack());
 746                         // Adding was not possible, swap the items.
 747                         ItemStack item2 = dest->changeItem(dest_i, item1);
 748                         // Put item from destination list to the source list
 749                         changeItem(i, item2);
 750                 }
 751         }
 752         return (oldcount - item1.count);
 753 }
 754
 755 /*
 756         Inventory
 757 */
 758
 759 Inventory::~Inventory()
 760 {
 761         clear();
 762 }
 763
 764 void Inventory::clear()
 765 {
 766         for (auto &m_list : m_lists) {
 767                 delete m_list;
 768         }
 769         m_lists.clear();
 770         setModified();
 771 }
 772
 773 Inventory::Inventory(IItemDefManager *itemdef)
 774 {
 775         m_itemdef = itemdef;
 776         setModified();
 777 }
 778
 779 Inventory::Inventory(const Inventory &other)
 780 {
 781         *this = other;
 782 }
 783
 784 Inventory & Inventory::operator = (const Inventory &other)
 785 {
 786         // Gracefully handle self assignment
 787         if(this != &other)
 788         {
 789                 clear();
 790                 m_itemdef = other.m_itemdef;
 791                 for (InventoryList *list : other.m_lists) {
 792                         m_lists.push_back(new InventoryList(*list));
 793                 }
 794                 setModified();
 795         }
 796         return *this;
 797 }
 798
 799 bool Inventory::operator == (const Inventory &other) const
 800 {
 801         if(m_lists.size() != other.m_lists.size())
 802                 return false;
 803
 804         for(u32 i=0; i<m_lists.size(); i++)
 805         {
 806                 if(*m_lists[i] != *other.m_lists[i])
 807                         return false;
 808         }
 809         return true;
 810 }
 811
 812 void Inventory::serialize(std::ostream &os, bool incremental) const
 813 {
 814         //std::cout << "Serialize " << (int)incremental << ", n=" << m_lists.size() << std::endl;
 815         for (const InventoryList *list : m_lists) {
 816                 if (!incremental || list->checkModified()) {
 817                         os << "List " << list->getName() << " " << list->getSize() << "\n";
 818                         list->serialize(os, incremental);
 819                 } else {
 820                         os << "KeepList " << list->getName() << "\n";
 821                 }
 822         }
 823
 824         os<<"EndInventory\n";
 825 }
 826
 827 void Inventory::deSerialize(std::istream &is)
 828 {
 829         std::vector<InventoryList *> new_lists;
 830         new_lists.reserve(m_lists.size());
 831
 832         while (is.good()) {
 833                 std::string line;
 834                 std::getline(is, line, '\n');
 835
 836                 std::istringstream iss(line);
 837
 838                 std::string name;
 839                 std::getline(iss, name, ' ');
 840
 841                 if (name == "EndInventory" || name == "end") {
 842                         // Remove all lists that were not sent
 843                         for (auto &list : m_lists) {
 844                                 if (std::find(new_lists.begin(), new_lists.end(), list) != new_lists.end())
 845                                         continue;
 846
 847                                 delete list;
 848                                 list = nullptr;
 849                                 setModified();
 850                         }
 851                         m_lists.erase(std::remove(m_lists.begin(), m_lists.end(),
 852                                         nullptr), m_lists.end());
 853                         return;
 854                 }
 855
 856                 if (name == "List") {
 857                         std::string listname;
 858                         u32 listsize;
 859
 860                         std::getline(iss, listname, ' ');
 861                         iss>>listsize;
 862
 863                         InventoryList *list = getList(listname);
 864                         bool create_new = !list;
 865                         if (create_new)
 866                                 list = new InventoryList(listname, listsize, m_itemdef);
 867                         else
 868                                 list->setSize(listsize);
 869                         list->deSerialize(is);
 870
 871                         new_lists.push_back(list);
 872                         if (create_new)
 873                                 m_lists.push_back(list);
 874
 875                 } else if (name == "KeepList") {
 876                         // Incrementally sent list
 877                         std::string listname;
 878                         std::getline(iss, listname, ' ');
 879
 880                         InventoryList *list = getList(listname);
 881                         if (list) {
 882                                 new_lists.push_back(list);
 883                         } else {
 884                                 errorstream << "Inventory::deSerialize(): Tried to keep list '" <<
 885                                         listname << "' which is non-existent." << std::endl;
 886                         }
 887                 }
 888                 // Any additional fields will throw errors when received by a client
 889                 // older than PROTOCOL_VERSION 38
 890         }
 891
 892         // Contents given to deSerialize() were not terminated properly: throw error.
 893
 894         std::ostringstream ss;
 895         ss << "Malformatted inventory (damaged?). "
 896                 << m_lists.size() << " lists read." << std::endl;
 897         throw SerializationError(ss.str());
 898 }
 899
 900 InventoryList * Inventory::addList(const std::string &name, u32 size)
 901 {
 902         setModified();
 903
 904         // Remove existing lists
 905         s32 i = getListIndex(name);
 906         if (i != -1) {
 907                 delete m_lists[i];
 908                 m_lists[i] = new InventoryList(name, size, m_itemdef);
 909                 m_lists[i]->setModified();
 910                 return m_lists[i];
 911         }
 912
 913         //don't create list with invalid name
 914         if (name.find(' ') != std::string::npos)
 915                 return nullptr;
 916
 917         InventoryList *list = new InventoryList(name, size, m_itemdef);
 918         list->setModified();
 919         m_lists.push_back(list);
 920         return list;
 921 }
 922
 923 InventoryList * Inventory::getList(const std::string &name)
 924 {
 925         s32 i = getListIndex(name);
 926         if(i == -1)
 927                 return nullptr;
 928         return m_lists[i];
 929 }
 930
 931 bool Inventory::deleteList(const std::string &name)
 932 {
 933         s32 i = getListIndex(name);
 934         if(i == -1)
 935                 return false;
 936
 937         setModified();
 938         delete m_lists[i];
 939         m_lists.erase(m_lists.begin() + i);
 940         return true;
 941 }
 942
 943 const InventoryList *Inventory::getList(const std::string &name) const
 944 {
 945         s32 i = getListIndex(name);
 946         if(i == -1)
 947                 return nullptr;
 948         return m_lists[i];
 949 }
 950
 951 s32 Inventory::getListIndex(const std::string &name) const
 952 {
 953         for(u32 i=0; i<m_lists.size(); i++)
 954         {
 955                 if(m_lists[i]->getName() == name)
 956                         return i;
 957         }
 958         return -1;
 959 }
 960
 961 //END