src/inventory.cpp

   1 /*
   2 Minetest-c55
   3 Copyright (C) 2010 celeron55, Perttu Ahola <celeron55@gmail.com>
   4
   5 This program is free software; you can redistribute it and/or modify
   6 it under the terms of the GNU General Public License as published by
   7 the Free Software Foundation; either version 2 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 General Public License for more details.
  14
  15 You should have received a copy of the GNU 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 /*
  21 (c) 2010 Perttu Ahola <celeron55@gmail.com>
  22 */
  23
  24 #include "inventory.h"
  25 #include "serialization.h"
  26 #include "utility.h"
  27 #include "debug.h"
  28 #include <sstream>
  29 #include "main.h"
  30 #include "serverobject.h"
  31
  32 /*
  33         InventoryItem
  34 */
  35
  36 InventoryItem::InventoryItem(u16 count)
  37 {
  38         m_count = count;
  39 }
  40
  41 InventoryItem::~InventoryItem()
  42 {
  43 }
  44
  45 InventoryItem* InventoryItem::deSerialize(std::istream &is)
  46 {
  47         DSTACK(__FUNCTION_NAME);
  48
  49         //is.imbue(std::locale("C"));
  50         // Read name
  51         std::string name;
  52         std::getline(is, name, ' ');
  53
  54         if(name == "MaterialItem")
  55         {
  56                 // u16 reads directly as a number (u8 doesn't)
  57                 u16 material;
  58                 is>>material;
  59                 u16 count;
  60                 is>>count;
  61                 if(material > 255)
  62                         throw SerializationError("Too large material number");
  63                 return new MaterialItem(material, count);
  64         }
  65         else if(name == "MBOItem")
  66         {
  67                 std::string inventorystring;
  68                 std::getline(is, inventorystring, '|');
  69                 return new MapBlockObjectItem(inventorystring);
  70         }
  71         else if(name == "CraftItem")
  72         {
  73                 std::string subname;
  74                 std::getline(is, subname, ' ');
  75                 u16 count;
  76                 is>>count;
  77                 return new CraftItem(subname, count);
  78         }
  79         else if(name == "ToolItem")
  80         {
  81                 std::string toolname;
  82                 std::getline(is, toolname, ' ');
  83                 u16 wear;
  84                 is>>wear;
  85                 return new ToolItem(toolname, wear);
  86         }
  87         else
  88         {
  89                 dstream<<"Unknown InventoryItem name=\""<<name<<"\""<<std::endl;
  90                 throw SerializationError("Unknown InventoryItem name");
  91         }
  92 }
  93
  94 ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
  95 {
  96         /*
  97                 Create an ItemSAO
  98         */
  99         // Get item string
 100         std::ostringstream os(std::ios_base::binary);
 101         serialize(os);
 102         // Create object
 103         ServerActiveObject *obj = new ItemSAO(env, 0, pos, os.str());
 104         return obj;
 105 }
 106
 107 /*
 108         MaterialItem
 109 */
 110
 111 bool MaterialItem::isCookable()
 112 {
 113         if(m_content == CONTENT_TREE)
 114         {
 115                 return true;
 116         }
 117         else if(m_content == CONTENT_COBBLE)
 118         {
 119                 return true;
 120         }
 121         else if(m_content == CONTENT_SAND)
 122         {
 123                 return true;
 124         }
 125         return false;
 126 }
 127
 128 InventoryItem *MaterialItem::createCookResult()
 129 {
 130         if(m_content == CONTENT_TREE)
 131         {
 132                 return new CraftItem("lump_of_coal", 1);
 133         }
 134         else if(m_content == CONTENT_COBBLE)
 135         {
 136                 return new MaterialItem(CONTENT_STONE, 1);
 137         }
 138         else if(m_content == CONTENT_SAND)
 139         {
 140                 return new MaterialItem(CONTENT_GLASS, 1);
 141         }
 142         return NULL;
 143 }
 144
 145 /*
 146         CraftItem
 147 */
 148
 149 #ifndef SERVER
 150 video::ITexture * CraftItem::getImage()
 151 {
 152         if(g_texturesource == NULL)
 153                 return NULL;
 154
 155         std::string name;
 156
 157         if(m_subname == "Stick")
 158                 name = "stick.png";
 159         else if(m_subname == "paper")
 160                 name = "paper.png";
 161         else if(m_subname == "book")
 162                 name = "book.png";
 163         else if(m_subname == "lump_of_coal")
 164                 name = "lump_of_coal.png";
 165         else if(m_subname == "lump_of_iron")
 166                 name = "lump_of_iron.png";
 167         else if(m_subname == "lump_of_clay")
 168                 name = "lump_of_clay.png";
 169         else if(m_subname == "steel_ingot")
 170                 name = "steel_ingot.png";
 171         else if(m_subname == "clay_brick")
 172                 name = "clay_brick.png";
 173         else if(m_subname == "rat")
 174                 name = "rat.png";
 175         else
 176                 name = "cloud.png";
 177
 178         // Get such a texture
 179         return g_texturesource->getTextureRaw(name);
 180 }
 181 #endif
 182
 183 ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
 184 {
 185         // Special cases
 186         if(m_subname == "rat")
 187         {
 188                 ServerActiveObject *obj = new RatSAO(env, id, pos);
 189                 return obj;
 190         }
 191         // Default
 192         else
 193         {
 194                 return InventoryItem::createSAO(env, id, pos);
 195         }
 196 }
 197
 198 u16 CraftItem::getDropCount()
 199 {
 200         // Special cases
 201         if(m_subname == "rat")
 202                 return 1;
 203         // Default
 204         else
 205                 return InventoryItem::getDropCount();
 206 }
 207
 208 bool CraftItem::isCookable()
 209 {
 210         if(m_subname == "lump_of_iron" || m_subname == "lump_of_clay")
 211         {
 212                 return true;
 213         }
 214         return false;
 215 }
 216
 217 InventoryItem *CraftItem::createCookResult()
 218 {
 219         if(m_subname == "lump_of_iron")
 220         {
 221                 return new CraftItem("steel_ingot", 1);
 222         }
 223         else if(m_subname == "lump_of_clay")
 224                 return new CraftItem("clay_brick", 1);
 225         return NULL;
 226 }
 227
 228 /*
 229         MapBlockObjectItem
 230         TODO: Remove
 231 */
 232 #ifndef SERVER
 233 video::ITexture * MapBlockObjectItem::getImage()
 234 {
 235         if(m_inventorystring.substr(0,3) == "Rat")
 236                 return g_texturesource->getTextureRaw("rat.png");
 237
 238         if(m_inventorystring.substr(0,4) == "Sign")
 239                 return g_texturesource->getTextureRaw("sign.png");
 240
 241         return NULL;
 242 }
 243 #endif
 244 std::string MapBlockObjectItem::getText()
 245 {
 246         if(m_inventorystring.substr(0,3) == "Rat")
 247                 return "";
 248
 249         if(m_inventorystring.substr(0,4) == "Sign")
 250                 return "";
 251
 252         return "obj";
 253 }
 254
 255 MapBlockObject * MapBlockObjectItem::createObject
 256                 (v3f pos, f32 player_yaw, f32 player_pitch)
 257 {
 258         std::istringstream is(m_inventorystring);
 259         std::string name;
 260         std::getline(is, name, ' ');
 261
 262         if(name == "None")
 263         {
 264                 return NULL;
 265         }
 266         else if(name == "Sign")
 267         {
 268                 std::string text;
 269                 std::getline(is, text, '|');
 270                 SignObject *obj = new SignObject(NULL, -1, pos);
 271                 obj->setText(text);
 272                 obj->setYaw(-player_yaw);
 273                 return obj;
 274         }
 275         else if(name == "Rat")
 276         {
 277                 RatObject *obj = new RatObject(NULL, -1, pos);
 278                 return obj;
 279         }
 280         else if(name == "ItemObj")
 281         {
 282                 /*
 283                         Now we are an inventory item containing the serialization
 284                         string of an object that contains the serialization
 285                         string of an inventory item. Fuck this.
 286                 */
 287                 //assert(0);
 288                 dstream<<__FUNCTION_NAME<<": WARNING: Ignoring ItemObj "
 289                                 <<"because an item-object should never be inside "
 290                                 <<"an object-item."<<std::endl;
 291                 return NULL;
 292         }
 293         else
 294         {
 295                 return NULL;
 296         }
 297 }
 298
 299 /*
 300         Inventory
 301 */
 302
 303 InventoryList::InventoryList(std::string name, u32 size)
 304 {
 305         m_name = name;
 306         m_size = size;
 307         clearItems();
 308         //m_dirty = false;
 309 }
 310
 311 InventoryList::~InventoryList()
 312 {
 313         for(u32 i=0; i<m_items.size(); i++)
 314         {
 315                 if(m_items[i])
 316                         delete m_items[i];
 317         }
 318 }
 319
 320 void InventoryList::clearItems()
 321 {
 322         for(u32 i=0; i<m_items.size(); i++)
 323         {
 324                 if(m_items[i])
 325                         delete m_items[i];
 326         }
 327
 328         m_items.clear();
 329
 330         for(u32 i=0; i<m_size; i++)
 331         {
 332                 m_items.push_back(NULL);
 333         }
 334
 335         //setDirty(true);
 336 }
 337
 338 void InventoryList::serialize(std::ostream &os)
 339 {
 340         //os.imbue(std::locale("C"));
 341
 342         for(u32 i=0; i<m_items.size(); i++)
 343         {
 344                 InventoryItem *item = m_items[i];
 345                 if(item != NULL)
 346                 {
 347                         os<<"Item ";
 348                         item->serialize(os);
 349                 }
 350                 else
 351                 {
 352                         os<<"Empty";
 353                 }
 354                 os<<"\n";
 355         }
 356
 357         os<<"EndInventoryList\n";
 358 }
 359
 360 void InventoryList::deSerialize(std::istream &is)
 361 {
 362         //is.imbue(std::locale("C"));
 363
 364         clearItems();
 365         u32 item_i = 0;
 366
 367         for(;;)
 368         {
 369                 std::string line;
 370                 std::getline(is, line, '\n');
 371
 372                 std::istringstream iss(line);
 373                 //iss.imbue(std::locale("C"));
 374
 375                 std::string name;
 376                 std::getline(iss, name, ' ');
 377
 378                 if(name == "EndInventoryList")
 379                 {
 380                         break;
 381                 }
 382                 // This is a temporary backwards compatibility fix
 383                 else if(name == "end")
 384                 {
 385                         break;
 386                 }
 387                 else if(name == "Item")
 388                 {
 389                         if(item_i > getSize() - 1)
 390                                 throw SerializationError("too many items");
 391                         InventoryItem *item = InventoryItem::deSerialize(iss);
 392                         m_items[item_i++] = item;
 393                 }
 394                 else if(name == "Empty")
 395                 {
 396                         if(item_i > getSize() - 1)
 397                                 throw SerializationError("too many items");
 398                         m_items[item_i++] = NULL;
 399                 }
 400                 else
 401                 {
 402                         throw SerializationError("Unknown inventory identifier");
 403                 }
 404         }
 405 }
 406
 407 InventoryList::InventoryList(const InventoryList &other)
 408 {
 409         /*
 410                 Do this so that the items get cloned. Otherwise the pointers
 411                 in the array will just get copied.
 412         */
 413         *this = other;
 414 }
 415
 416 InventoryList & InventoryList::operator = (const InventoryList &other)
 417 {
 418         m_name = other.m_name;
 419         m_size = other.m_size;
 420         clearItems();
 421         for(u32 i=0; i<other.m_items.size(); i++)
 422         {
 423                 InventoryItem *item = other.m_items[i];
 424                 if(item != NULL)
 425                 {
 426                         m_items[i] = item->clone();
 427                 }
 428         }
 429         //setDirty(true);
 430
 431         return *this;
 432 }
 433
 434 std::string InventoryList::getName()
 435 {
 436         return m_name;
 437 }
 438
 439 u32 InventoryList::getSize()
 440 {
 441         return m_items.size();
 442 }
 443
 444 u32 InventoryList::getUsedSlots()
 445 {
 446         u32 num = 0;
 447         for(u32 i=0; i<m_items.size(); i++)
 448         {
 449                 InventoryItem *item = m_items[i];
 450                 if(item != NULL)
 451                         num++;
 452         }
 453         return num;
 454 }
 455
 456 u32 InventoryList::getFreeSlots()
 457 {
 458         return getSize() - getUsedSlots();
 459 }
 460
 461 InventoryItem * InventoryList::getItem(u32 i)
 462 {
 463         if(i > m_items.size() - 1)
 464                 return NULL;
 465         return m_items[i];
 466 }
 467
 468 InventoryItem * InventoryList::changeItem(u32 i, InventoryItem *newitem)
 469 {
 470         assert(i < m_items.size());
 471
 472         InventoryItem *olditem = m_items[i];
 473         m_items[i] = newitem;
 474         //setDirty(true);
 475         return olditem;
 476 }
 477
 478 void InventoryList::deleteItem(u32 i)
 479 {
 480         assert(i < m_items.size());
 481         InventoryItem *item = changeItem(i, NULL);
 482         if(item)
 483                 delete item;
 484 }
 485
 486 InventoryItem * InventoryList::addItem(InventoryItem *newitem)
 487 {
 488         if(newitem == NULL)
 489                 return NULL;
 490
 491         /*
 492                 First try to find if it could be added to some existing items
 493         */
 494         for(u32 i=0; i<m_items.size(); i++)
 495         {
 496                 // Ignore empty slots
 497                 if(m_items[i] == NULL)
 498                         continue;
 499                 // Try adding
 500                 newitem = addItem(i, newitem);
 501                 if(newitem == NULL)
 502                         return NULL; // All was eaten
 503         }
 504
 505         /*
 506                 Then try to add it to empty slots
 507         */
 508         for(u32 i=0; i<m_items.size(); i++)
 509         {
 510                 // Ignore unempty slots
 511                 if(m_items[i] != NULL)
 512                         continue;
 513                 // Try adding
 514                 newitem = addItem(i, newitem);
 515                 if(newitem == NULL)
 516                         return NULL; // All was eaten
 517         }
 518
 519         // Return leftover
 520         return newitem;
 521 }
 522
 523 InventoryItem * InventoryList::addItem(u32 i, InventoryItem *newitem)
 524 {
 525         if(newitem == NULL)
 526                 return NULL;
 527
 528         //setDirty(true);
 529
 530         // If it is an empty position, it's an easy job.
 531         InventoryItem *to_item = m_items[i];
 532         if(to_item == NULL)
 533         {
 534                 m_items[i] = newitem;
 535                 return NULL;
 536         }
 537
 538         // If not addable, return the item
 539         if(newitem->addableTo(to_item) == false)
 540                 return newitem;
 541
 542         // If the item fits fully in the slot, add counter and delete it
 543         if(newitem->getCount() <= to_item->freeSpace())
 544         {
 545                 to_item->add(newitem->getCount());
 546                 delete newitem;
 547                 return NULL;
 548         }
 549         // Else the item does not fit fully. Add all that fits and return
 550         // the rest.
 551         else
 552         {
 553                 u16 freespace = to_item->freeSpace();
 554                 to_item->add(freespace);
 555                 newitem->remove(freespace);
 556                 return newitem;
 557         }
 558 }
 559
 560 bool InventoryList::itemFits(u32 i, InventoryItem *newitem)
 561 {
 562         // If it is an empty position, it's an easy job.
 563         InventoryItem *to_item = m_items[i];
 564         if(to_item == NULL)
 565         {
 566                 return true;
 567         }
 568
 569         // If not addable, return the item
 570         if(newitem->addableTo(to_item) == false)
 571                 return false;
 572
 573         // If the item fits fully in the slot, add counter and delete it
 574         if(newitem->getCount() <= to_item->freeSpace())
 575         {
 576                 return true;
 577         }
 578
 579         return false;
 580 }
 581
 582 InventoryItem * InventoryList::takeItem(u32 i, u32 count)
 583 {
 584         if(count == 0)
 585                 return NULL;
 586
 587         //setDirty(true);
 588
 589         InventoryItem *item = m_items[i];
 590         // If it is an empty position, return NULL
 591         if(item == NULL)
 592                 return NULL;
 593
 594         if(count >= item->getCount())
 595         {
 596                 // Get the item by swapping NULL to its place
 597                 return changeItem(i, NULL);
 598         }
 599         else
 600         {
 601                 InventoryItem *item2 = item->clone();
 602                 item->remove(count);
 603                 item2->setCount(count);
 604                 return item2;
 605         }
 606
 607         return false;
 608 }
 609
 610 void InventoryList::decrementMaterials(u16 count)
 611 {
 612         for(u32 i=0; i<m_items.size(); i++)
 613         {
 614                 InventoryItem *item = takeItem(i, count);
 615                 if(item)
 616                         delete item;
 617         }
 618 }
 619
 620 void InventoryList::print(std::ostream &o)
 621 {
 622         o<<"InventoryList:"<<std::endl;
 623         for(u32 i=0; i<m_items.size(); i++)
 624         {
 625                 InventoryItem *item = m_items[i];
 626                 if(item != NULL)
 627                 {
 628                         o<<i<<": ";
 629                         item->serialize(o);
 630                         o<<"\n";
 631                 }
 632         }
 633 }
 634
 635 /*
 636         Inventory
 637 */
 638
 639 Inventory::~Inventory()
 640 {
 641         clear();
 642 }
 643
 644 void Inventory::clear()
 645 {
 646         for(u32 i=0; i<m_lists.size(); i++)
 647         {
 648                 delete m_lists[i];
 649         }
 650         m_lists.clear();
 651 }
 652
 653 Inventory::Inventory()
 654 {
 655 }
 656
 657 Inventory::Inventory(const Inventory &other)
 658 {
 659         *this = other;
 660 }
 661
 662 Inventory & Inventory::operator = (const Inventory &other)
 663 {
 664         clear();
 665         for(u32 i=0; i<other.m_lists.size(); i++)
 666         {
 667                 m_lists.push_back(new InventoryList(*other.m_lists[i]));
 668         }
 669         return *this;
 670 }
 671
 672 void Inventory::serialize(std::ostream &os)
 673 {
 674         for(u32 i=0; i<m_lists.size(); i++)
 675         {
 676                 InventoryList *list = m_lists[i];
 677                 os<<"List "<<list->getName()<<" "<<list->getSize()<<"\n";
 678                 list->serialize(os);
 679         }
 680
 681         os<<"EndInventory\n";
 682 }
 683
 684 void Inventory::deSerialize(std::istream &is)
 685 {
 686         clear();
 687
 688         for(;;)
 689         {
 690                 std::string line;
 691                 std::getline(is, line, '\n');
 692
 693                 std::istringstream iss(line);
 694
 695                 std::string name;
 696                 std::getline(iss, name, ' ');
 697
 698                 if(name == "EndInventory")
 699                 {
 700                         break;
 701                 }
 702                 // This is a temporary backwards compatibility fix
 703                 else if(name == "end")
 704                 {
 705                         break;
 706                 }
 707                 else if(name == "List")
 708                 {
 709                         std::string listname;
 710                         u32 listsize;
 711
 712                         std::getline(iss, listname, ' ');
 713                         iss>>listsize;
 714
 715                         InventoryList *list = new InventoryList(listname, listsize);
 716                         list->deSerialize(is);
 717
 718                         m_lists.push_back(list);
 719                 }
 720                 else
 721                 {
 722                         throw SerializationError("Unknown inventory identifier");
 723                 }
 724         }
 725 }
 726
 727 InventoryList * Inventory::addList(const std::string &name, u32 size)
 728 {
 729         s32 i = getListIndex(name);
 730         if(i != -1)
 731         {
 732                 if(m_lists[i]->getSize() != size)
 733                 {
 734                         delete m_lists[i];
 735                         m_lists[i] = new InventoryList(name, size);
 736                 }
 737                 return m_lists[i];
 738         }
 739         else
 740         {
 741                 m_lists.push_back(new InventoryList(name, size));
 742                 return m_lists.getLast();
 743         }
 744 }
 745
 746 InventoryList * Inventory::getList(const std::string &name)
 747 {
 748         s32 i = getListIndex(name);
 749         if(i == -1)
 750                 return NULL;
 751         return m_lists[i];
 752 }
 753
 754 s32 Inventory::getListIndex(const std::string &name)
 755 {
 756         for(u32 i=0; i<m_lists.size(); i++)
 757         {
 758                 if(m_lists[i]->getName() == name)
 759                         return i;
 760         }
 761         return -1;
 762 }
 763
 764 /*
 765         InventoryAction
 766 */
 767
 768 InventoryAction * InventoryAction::deSerialize(std::istream &is)
 769 {
 770         std::string type;
 771         std::getline(is, type, ' ');
 772
 773         InventoryAction *a = NULL;
 774
 775         if(type == "Move")
 776         {
 777                 a = new IMoveAction(is);
 778         }
 779
 780         return a;
 781 }
 782
 783 void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr)
 784 {
 785 #if 1
 786
 787         /*dstream<<"from_inv="<<from_inv<<" to_inv="<<to_inv<<std::endl;
 788         dstream<<"from_list="<<from_list<<" to_list="<<to_list<<std::endl;
 789         dstream<<"from_i="<<from_i<<" to_i="<<to_i<<std::endl;*/
 790
 791         Inventory *inv_from = mgr->getInventory(c, from_inv);
 792         Inventory *inv_to = mgr->getInventory(c, to_inv);
 793
 794         if(!inv_from || !inv_to)
 795         {
 796                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 797                                 <<"(inventories not found)"<<std::endl;
 798                 return;
 799         }
 800
 801         InventoryList *list_from = inv_from->getList(from_list);
 802         InventoryList *list_to = inv_to->getList(to_list);
 803
 804         /*dstream<<"list_from="<<list_from<<" list_to="<<list_to
 805                         <<std::endl;*/
 806         /*if(list_from)
 807                 dstream<<" list_from->getItem(from_i)="<<list_from->getItem(from_i)
 808                                 <<std::endl;
 809         if(list_to)
 810                 dstream<<" list_to->getItem(to_i)="<<list_to->getItem(to_i)
 811                                 <<std::endl;*/
 812
 813         /*
 814                 If a list doesn't exist or the source item doesn't exist
 815         */
 816         if(!list_from || !list_to)
 817         {
 818                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 819                                 <<"(a list doesn't exist)"
 820                                 <<std::endl;
 821                 return;
 822         }
 823         if(list_from->getItem(from_i) == NULL)
 824         {
 825                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 826                                 <<"(the source item doesn't exist)"
 827                                 <<std::endl;
 828                 return;
 829         }
 830         /*
 831                 If the source and the destination slots are the same
 832         */
 833         if(inv_from == inv_to && list_from == list_to && from_i == to_i)
 834         {
 835                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 836                                 <<"(source and the destination slots are the same)"<<std::endl;
 837                 return;
 838         }
 839
 840         // Take item from source list
 841         InventoryItem *item1 = NULL;
 842         if(count == 0)
 843                 item1 = list_from->changeItem(from_i, NULL);
 844         else
 845                 item1 = list_from->takeItem(from_i, count);
 846
 847         // Try to add the item to destination list
 848         InventoryItem *olditem = item1;
 849         item1 = list_to->addItem(to_i, item1);
 850
 851         // If something is returned, the item was not fully added
 852         if(item1 != NULL)
 853         {
 854                 // If olditem is returned, nothing was added.
 855                 bool nothing_added = (item1 == olditem);
 856
 857                 // If something else is returned, part of the item was left unadded.
 858                 // Add the other part back to the source item
 859                 list_from->addItem(from_i, item1);
 860
 861                 // If olditem is returned, nothing was added.
 862                 // Swap the items
 863                 if(nothing_added)
 864                 {
 865                         // Take item from source list
 866                         item1 = list_from->changeItem(from_i, NULL);
 867                         // Adding was not possible, swap the items.
 868                         InventoryItem *item2 = list_to->changeItem(to_i, item1);
 869                         // Put item from destination list to the source list
 870                         list_from->changeItem(from_i, item2);
 871                 }
 872         }
 873
 874         mgr->inventoryModified(c, from_inv);
 875         if(from_inv != to_inv)
 876                 mgr->inventoryModified(c, to_inv);
 877 #endif
 878 }
 879
 880 /*
 881         Craft checking system
 882 */
 883
 884 bool ItemSpec::checkItem(InventoryItem *item)
 885 {
 886         if(type == ITEM_NONE)
 887         {
 888                 // Has to be no item
 889                 if(item != NULL)
 890                         return false;
 891                 return true;
 892         }
 893
 894         // There should be an item
 895         if(item == NULL)
 896                 return false;
 897
 898         std::string itemname = item->getName();
 899
 900         if(type == ITEM_MATERIAL)
 901         {
 902                 if(itemname != "MaterialItem")
 903                         return false;
 904                 MaterialItem *mitem = (MaterialItem*)item;
 905                 if(mitem->getMaterial() != num)
 906                         return false;
 907         }
 908         else if(type == ITEM_CRAFT)
 909         {
 910                 if(itemname != "CraftItem")
 911                         return false;
 912                 CraftItem *mitem = (CraftItem*)item;
 913                 if(mitem->getSubName() != name)
 914                         return false;
 915         }
 916         else if(type == ITEM_TOOL)
 917         {
 918                 // Not supported yet
 919                 assert(0);
 920         }
 921         else if(type == ITEM_MBO)
 922         {
 923                 // Not supported yet
 924                 assert(0);
 925         }
 926         else
 927         {
 928                 // Not supported yet
 929                 assert(0);
 930         }
 931         return true;
 932 }
 933
 934 bool checkItemCombination(InventoryItem **items, ItemSpec *specs)
 935 {
 936         u16 items_min_x = 100;
 937         u16 items_max_x = 100;
 938         u16 items_min_y = 100;
 939         u16 items_max_y = 100;
 940         for(u16 y=0; y<3; y++)
 941         for(u16 x=0; x<3; x++)
 942         {
 943                 if(items[y*3 + x] == NULL)
 944                         continue;
 945                 if(items_min_x == 100 || x < items_min_x)
 946                         items_min_x = x;
 947                 if(items_min_y == 100 || y < items_min_y)
 948                         items_min_y = y;
 949                 if(items_max_x == 100 || x > items_max_x)
 950                         items_max_x = x;
 951                 if(items_max_y == 100 || y > items_max_y)
 952                         items_max_y = y;
 953         }
 954         // No items at all, just return false
 955         if(items_min_x == 100)
 956                 return false;
 957
 958         u16 items_w = items_max_x - items_min_x + 1;
 959         u16 items_h = items_max_y - items_min_y + 1;
 960
 961         u16 specs_min_x = 100;
 962         u16 specs_max_x = 100;
 963         u16 specs_min_y = 100;
 964         u16 specs_max_y = 100;
 965         for(u16 y=0; y<3; y++)
 966         for(u16 x=0; x<3; x++)
 967         {
 968                 if(specs[y*3 + x].type == ITEM_NONE)
 969                         continue;
 970                 if(specs_min_x == 100 || x < specs_min_x)
 971                         specs_min_x = x;
 972                 if(specs_min_y == 100 || y < specs_min_y)
 973                         specs_min_y = y;
 974                 if(specs_max_x == 100 || x > specs_max_x)
 975                         specs_max_x = x;
 976                 if(specs_max_y == 100 || y > specs_max_y)
 977                         specs_max_y = y;
 978         }
 979         // No specs at all, just return false
 980         if(specs_min_x == 100)
 981                 return false;
 982
 983         u16 specs_w = specs_max_x - specs_min_x + 1;
 984         u16 specs_h = specs_max_y - specs_min_y + 1;
 985
 986         // Different sizes
 987         if(items_w != specs_w || items_h != specs_h)
 988                 return false;
 989
 990         for(u16 y=0; y<specs_h; y++)
 991         for(u16 x=0; x<specs_w; x++)
 992         {
 993                 u16 items_x = items_min_x + x;
 994                 u16 items_y = items_min_y + y;
 995                 u16 specs_x = specs_min_x + x;
 996                 u16 specs_y = specs_min_y + y;
 997                 InventoryItem *item = items[items_y * 3 + items_x];
 998                 ItemSpec &spec = specs[specs_y * 3 + specs_x];
 999
1000                 if(spec.checkItem(item) == false)
1001                         return false;
1002         }
1003
1004         return true;
1005 }
1006
1007 //END