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 #include "content_mapnode.h"
  32 #include "content_inventory.h"
  33 #include "content_sao.h"
  34 #include "player.h"
  35
  36 /*
  37         InventoryItem
  38 */
  39
  40 InventoryItem::InventoryItem(u16 count)
  41 {
  42         m_count = count;
  43 }
  44
  45 InventoryItem::~InventoryItem()
  46 {
  47 }
  48
  49 content_t content_translate_from_19_to_internal(content_t c_from)
  50 {
  51         for(u32 i=0; i<sizeof(trans_table_19)/sizeof(trans_table_19[0]); i++)
  52         {
  53                 if(trans_table_19[i][1] == c_from)
  54                 {
  55                         return trans_table_19[i][0];
  56                 }
  57         }
  58         return c_from;
  59 }
  60
  61 InventoryItem* InventoryItem::deSerialize(std::istream &is)
  62 {
  63         DSTACK(__FUNCTION_NAME);
  64
  65         //is.imbue(std::locale("C"));
  66         // Read name
  67         std::string name;
  68         std::getline(is, name, ' ');
  69
  70         if(name == "MaterialItem")
  71         {
  72                 // u16 reads directly as a number (u8 doesn't)
  73                 u16 material;
  74                 is>>material;
  75                 u16 count;
  76                 is>>count;
  77                 // Convert old materials
  78                 if(material <= 0xff)
  79                 {
  80                         material = content_translate_from_19_to_internal(material);
  81                 }
  82                 if(material > MAX_CONTENT)
  83                         throw SerializationError("Too large material number");
  84                 return new MaterialItem(material, count);
  85         }
  86         else if(name == "MaterialItem2")
  87         {
  88                 u16 material;
  89                 is>>material;
  90                 u16 count;
  91                 is>>count;
  92                 if(material > MAX_CONTENT)
  93                         throw SerializationError("Too large material number");
  94                 return new MaterialItem(material, count);
  95         }
  96         else if(name == "MBOItem")
  97         {
  98                 std::string inventorystring;
  99                 std::getline(is, inventorystring, '|');
 100                 return new MapBlockObjectItem(inventorystring);
 101         }
 102         else if(name == "CraftItem")
 103         {
 104                 std::string subname;
 105                 std::getline(is, subname, ' ');
 106                 u16 count;
 107                 is>>count;
 108                 return new CraftItem(subname, count);
 109         }
 110         else if(name == "ToolItem")
 111         {
 112                 std::string toolname;
 113                 std::getline(is, toolname, ' ');
 114                 u16 wear;
 115                 is>>wear;
 116                 return new ToolItem(toolname, wear);
 117         }
 118         else
 119         {
 120                 dstream<<"Unknown InventoryItem name=\""<<name<<"\""<<std::endl;
 121                 throw SerializationError("Unknown InventoryItem name");
 122         }
 123 }
 124
 125 ServerActiveObject* InventoryItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
 126 {
 127         /*
 128                 Create an ItemSAO
 129         */
 130         // Get item string
 131         std::ostringstream os(std::ios_base::binary);
 132         serialize(os);
 133         // Create object
 134         ServerActiveObject *obj = new ItemSAO(env, 0, pos, os.str());
 135         return obj;
 136 }
 137
 138 /*
 139         MaterialItem
 140 */
 141
 142 bool MaterialItem::isCookable()
 143 {
 144         return item_material_is_cookable(m_content);
 145 }
 146
 147 InventoryItem *MaterialItem::createCookResult()
 148 {
 149         return item_material_create_cook_result(m_content);
 150 }
 151
 152 /*
 153         CraftItem
 154 */
 155
 156 #ifndef SERVER
 157 video::ITexture * CraftItem::getImage()
 158 {
 159         if(g_texturesource == NULL)
 160                 return NULL;
 161
 162         std::string name = item_craft_get_image_name(m_subname);
 163
 164         // Get such a texture
 165         return g_texturesource->getTextureRaw(name);
 166 }
 167 #endif
 168
 169 ServerActiveObject* CraftItem::createSAO(ServerEnvironment *env, u16 id, v3f pos)
 170 {
 171         // Special cases
 172         ServerActiveObject *obj = item_craft_create_object(m_subname, env, id, pos);
 173         if(obj)
 174                 return obj;
 175         // Default
 176         return InventoryItem::createSAO(env, id, pos);
 177 }
 178
 179 u16 CraftItem::getDropCount()
 180 {
 181         // Special cases
 182         s16 dc = item_craft_get_drop_count(m_subname);
 183         if(dc != -1)
 184                 return dc;
 185         // Default
 186         return InventoryItem::getDropCount();
 187 }
 188
 189 bool CraftItem::isCookable()
 190 {
 191         return item_craft_is_cookable(m_subname);
 192 }
 193
 194 InventoryItem *CraftItem::createCookResult()
 195 {
 196         return item_craft_create_cook_result(m_subname);
 197 }
 198
 199 bool CraftItem::use(ServerEnvironment *env, Player *player)
 200 {
 201         if(item_craft_is_eatable(m_subname))
 202         {
 203                 s16 hp_change = item_craft_eat_hp_change(m_subname);
 204                 if(player->hp + hp_change > 20)
 205                         player->hp = 20;
 206                 else
 207                         player->hp += hp_change;
 208                 return true;
 209         }
 210         return false;
 211 }
 212
 213 /*
 214         MapBlockObjectItem DEPRECATED
 215         TODO: Remove
 216 */
 217 #ifndef SERVER
 218 video::ITexture * MapBlockObjectItem::getImage()
 219 {
 220         if(m_inventorystring.substr(0,3) == "Rat")
 221                 return g_texturesource->getTextureRaw("rat.png");
 222
 223         if(m_inventorystring.substr(0,4) == "Sign")
 224                 return g_texturesource->getTextureRaw("sign.png");
 225
 226         return NULL;
 227 }
 228 #endif
 229 std::string MapBlockObjectItem::getText()
 230 {
 231         if(m_inventorystring.substr(0,3) == "Rat")
 232                 return "";
 233
 234         if(m_inventorystring.substr(0,4) == "Sign")
 235                 return "";
 236
 237         return "obj";
 238 }
 239
 240 MapBlockObject * MapBlockObjectItem::createObject
 241                 (v3f pos, f32 player_yaw, f32 player_pitch)
 242 {
 243         std::istringstream is(m_inventorystring);
 244         std::string name;
 245         std::getline(is, name, ' ');
 246
 247         if(name == "None")
 248         {
 249                 return NULL;
 250         }
 251         else if(name == "Sign")
 252         {
 253                 std::string text;
 254                 std::getline(is, text, '|');
 255                 SignObject *obj = new SignObject(NULL, -1, pos);
 256                 obj->setText(text);
 257                 obj->setYaw(-player_yaw);
 258                 return obj;
 259         }
 260         else if(name == "Rat")
 261         {
 262                 RatObject *obj = new RatObject(NULL, -1, pos);
 263                 return obj;
 264         }
 265         else if(name == "ItemObj")
 266         {
 267                 /*
 268                         Now we are an inventory item containing the serialization
 269                         string of an object that contains the serialization
 270                         string of an inventory item. Fuck this.
 271                 */
 272                 //assert(0);
 273                 dstream<<__FUNCTION_NAME<<": WARNING: Ignoring ItemObj "
 274                                 <<"because an item-object should never be inside "
 275                                 <<"an object-item."<<std::endl;
 276                 return NULL;
 277         }
 278         else
 279         {
 280                 return NULL;
 281         }
 282 }
 283
 284 /*
 285         Inventory
 286 */
 287
 288 InventoryList::InventoryList(std::string name, u32 size)
 289 {
 290         m_name = name;
 291         m_size = size;
 292         clearItems();
 293         //m_dirty = false;
 294 }
 295
 296 InventoryList::~InventoryList()
 297 {
 298         for(u32 i=0; i<m_items.size(); i++)
 299         {
 300                 if(m_items[i])
 301                         delete m_items[i];
 302         }
 303 }
 304
 305 void InventoryList::clearItems()
 306 {
 307         for(u32 i=0; i<m_items.size(); i++)
 308         {
 309                 if(m_items[i])
 310                         delete m_items[i];
 311         }
 312
 313         m_items.clear();
 314
 315         for(u32 i=0; i<m_size; i++)
 316         {
 317                 m_items.push_back(NULL);
 318         }
 319
 320         //setDirty(true);
 321 }
 322
 323 void InventoryList::serialize(std::ostream &os)
 324 {
 325         //os.imbue(std::locale("C"));
 326
 327         for(u32 i=0; i<m_items.size(); i++)
 328         {
 329                 InventoryItem *item = m_items[i];
 330                 if(item != NULL)
 331                 {
 332                         os<<"Item ";
 333                         item->serialize(os);
 334                 }
 335                 else
 336                 {
 337                         os<<"Empty";
 338                 }
 339                 os<<"\n";
 340         }
 341
 342         os<<"EndInventoryList\n";
 343 }
 344
 345 void InventoryList::deSerialize(std::istream &is)
 346 {
 347         //is.imbue(std::locale("C"));
 348
 349         clearItems();
 350         u32 item_i = 0;
 351
 352         for(;;)
 353         {
 354                 std::string line;
 355                 std::getline(is, line, '\n');
 356
 357                 std::istringstream iss(line);
 358                 //iss.imbue(std::locale("C"));
 359
 360                 std::string name;
 361                 std::getline(iss, name, ' ');
 362
 363                 if(name == "EndInventoryList")
 364                 {
 365                         break;
 366                 }
 367                 // This is a temporary backwards compatibility fix
 368                 else if(name == "end")
 369                 {
 370                         break;
 371                 }
 372                 else if(name == "Item")
 373                 {
 374                         if(item_i > getSize() - 1)
 375                                 throw SerializationError("too many items");
 376                         InventoryItem *item = InventoryItem::deSerialize(iss);
 377                         m_items[item_i++] = item;
 378                 }
 379                 else if(name == "Empty")
 380                 {
 381                         if(item_i > getSize() - 1)
 382                                 throw SerializationError("too many items");
 383                         m_items[item_i++] = NULL;
 384                 }
 385                 else
 386                 {
 387                         throw SerializationError("Unknown inventory identifier");
 388                 }
 389         }
 390 }
 391
 392 InventoryList::InventoryList(const InventoryList &other)
 393 {
 394         /*
 395                 Do this so that the items get cloned. Otherwise the pointers
 396                 in the array will just get copied.
 397         */
 398         *this = other;
 399 }
 400
 401 InventoryList & InventoryList::operator = (const InventoryList &other)
 402 {
 403         m_name = other.m_name;
 404         m_size = other.m_size;
 405         clearItems();
 406         for(u32 i=0; i<other.m_items.size(); i++)
 407         {
 408                 InventoryItem *item = other.m_items[i];
 409                 if(item != NULL)
 410                 {
 411                         m_items[i] = item->clone();
 412                 }
 413         }
 414         //setDirty(true);
 415
 416         return *this;
 417 }
 418
 419 std::string InventoryList::getName()
 420 {
 421         return m_name;
 422 }
 423
 424 u32 InventoryList::getSize()
 425 {
 426         return m_items.size();
 427 }
 428
 429 u32 InventoryList::getUsedSlots()
 430 {
 431         u32 num = 0;
 432         for(u32 i=0; i<m_items.size(); i++)
 433         {
 434                 InventoryItem *item = m_items[i];
 435                 if(item != NULL)
 436                         num++;
 437         }
 438         return num;
 439 }
 440
 441 u32 InventoryList::getFreeSlots()
 442 {
 443         return getSize() - getUsedSlots();
 444 }
 445
 446 InventoryItem * InventoryList::getItem(u32 i)
 447 {
 448         if(i > m_items.size() - 1)
 449                 return NULL;
 450         return m_items[i];
 451 }
 452
 453 InventoryItem * InventoryList::changeItem(u32 i, InventoryItem *newitem)
 454 {
 455         assert(i < m_items.size());
 456
 457         InventoryItem *olditem = m_items[i];
 458         m_items[i] = newitem;
 459         //setDirty(true);
 460         return olditem;
 461 }
 462
 463 void InventoryList::deleteItem(u32 i)
 464 {
 465         assert(i < m_items.size());
 466         InventoryItem *item = changeItem(i, NULL);
 467         if(item)
 468                 delete item;
 469 }
 470
 471 InventoryItem * InventoryList::addItem(InventoryItem *newitem)
 472 {
 473         if(newitem == NULL)
 474                 return NULL;
 475
 476         /*
 477                 First try to find if it could be added to some existing items
 478         */
 479         for(u32 i=0; i<m_items.size(); i++)
 480         {
 481                 // Ignore empty slots
 482                 if(m_items[i] == NULL)
 483                         continue;
 484                 // Try adding
 485                 newitem = addItem(i, newitem);
 486                 if(newitem == NULL)
 487                         return NULL; // All was eaten
 488         }
 489
 490         /*
 491                 Then try to add it to empty slots
 492         */
 493         for(u32 i=0; i<m_items.size(); i++)
 494         {
 495                 // Ignore unempty slots
 496                 if(m_items[i] != NULL)
 497                         continue;
 498                 // Try adding
 499                 newitem = addItem(i, newitem);
 500                 if(newitem == NULL)
 501                         return NULL; // All was eaten
 502         }
 503
 504         // Return leftover
 505         return newitem;
 506 }
 507
 508 InventoryItem * InventoryList::addItem(u32 i, InventoryItem *newitem)
 509 {
 510         if(newitem == NULL)
 511                 return NULL;
 512
 513         //setDirty(true);
 514
 515         // If it is an empty position, it's an easy job.
 516         InventoryItem *to_item = getItem(i);
 517         if(to_item == NULL)
 518         {
 519                 m_items[i] = newitem;
 520                 return NULL;
 521         }
 522
 523         // If not addable, return the item
 524         if(newitem->addableTo(to_item) == false)
 525                 return newitem;
 526
 527         // If the item fits fully in the slot, add counter and delete it
 528         if(newitem->getCount() <= to_item->freeSpace())
 529         {
 530                 to_item->add(newitem->getCount());
 531                 delete newitem;
 532                 return NULL;
 533         }
 534         // Else the item does not fit fully. Add all that fits and return
 535         // the rest.
 536         else
 537         {
 538                 u16 freespace = to_item->freeSpace();
 539                 to_item->add(freespace);
 540                 newitem->remove(freespace);
 541                 return newitem;
 542         }
 543 }
 544
 545 bool InventoryList::itemFits(u32 i, InventoryItem *newitem)
 546 {
 547         // If it is an empty position, it's an easy job.
 548         InventoryItem *to_item = getItem(i);
 549         if(to_item == NULL)
 550         {
 551                 return true;
 552         }
 553
 554         // If not addable, return the item
 555         if(newitem->addableTo(to_item) == false)
 556                 return false;
 557
 558         // If the item fits fully in the slot, add counter and delete it
 559         if(newitem->getCount() <= to_item->freeSpace())
 560         {
 561                 return true;
 562         }
 563
 564         return false;
 565 }
 566
 567 InventoryItem * InventoryList::takeItem(u32 i, u32 count)
 568 {
 569         if(count == 0)
 570                 return NULL;
 571
 572         //setDirty(true);
 573
 574         InventoryItem *item = getItem(i);
 575         // If it is an empty position, return NULL
 576         if(item == NULL)
 577                 return NULL;
 578
 579         if(count >= item->getCount())
 580         {
 581                 // Get the item by swapping NULL to its place
 582                 return changeItem(i, NULL);
 583         }
 584         else
 585         {
 586                 InventoryItem *item2 = item->clone();
 587                 item->remove(count);
 588                 item2->setCount(count);
 589                 return item2;
 590         }
 591
 592         return false;
 593 }
 594
 595 void InventoryList::decrementMaterials(u16 count)
 596 {
 597         for(u32 i=0; i<m_items.size(); i++)
 598         {
 599                 InventoryItem *item = takeItem(i, count);
 600                 if(item)
 601                         delete item;
 602         }
 603 }
 604
 605 void InventoryList::print(std::ostream &o)
 606 {
 607         o<<"InventoryList:"<<std::endl;
 608         for(u32 i=0; i<m_items.size(); i++)
 609         {
 610                 InventoryItem *item = m_items[i];
 611                 if(item != NULL)
 612                 {
 613                         o<<i<<": ";
 614                         item->serialize(o);
 615                         o<<"\n";
 616                 }
 617         }
 618 }
 619
 620 /*
 621         Inventory
 622 */
 623
 624 Inventory::~Inventory()
 625 {
 626         clear();
 627 }
 628
 629 void Inventory::clear()
 630 {
 631         for(u32 i=0; i<m_lists.size(); i++)
 632         {
 633                 delete m_lists[i];
 634         }
 635         m_lists.clear();
 636 }
 637
 638 Inventory::Inventory()
 639 {
 640 }
 641
 642 Inventory::Inventory(const Inventory &other)
 643 {
 644         *this = other;
 645 }
 646
 647 Inventory & Inventory::operator = (const Inventory &other)
 648 {
 649         clear();
 650         for(u32 i=0; i<other.m_lists.size(); i++)
 651         {
 652                 m_lists.push_back(new InventoryList(*other.m_lists[i]));
 653         }
 654         return *this;
 655 }
 656
 657 void Inventory::serialize(std::ostream &os)
 658 {
 659         for(u32 i=0; i<m_lists.size(); i++)
 660         {
 661                 InventoryList *list = m_lists[i];
 662                 os<<"List "<<list->getName()<<" "<<list->getSize()<<"\n";
 663                 list->serialize(os);
 664         }
 665
 666         os<<"EndInventory\n";
 667 }
 668
 669 void Inventory::deSerialize(std::istream &is)
 670 {
 671         clear();
 672
 673         for(;;)
 674         {
 675                 std::string line;
 676                 std::getline(is, line, '\n');
 677
 678                 std::istringstream iss(line);
 679
 680                 std::string name;
 681                 std::getline(iss, name, ' ');
 682
 683                 if(name == "EndInventory")
 684                 {
 685                         break;
 686                 }
 687                 // This is a temporary backwards compatibility fix
 688                 else if(name == "end")
 689                 {
 690                         break;
 691                 }
 692                 else if(name == "List")
 693                 {
 694                         std::string listname;
 695                         u32 listsize;
 696
 697                         std::getline(iss, listname, ' ');
 698                         iss>>listsize;
 699
 700                         InventoryList *list = new InventoryList(listname, listsize);
 701                         list->deSerialize(is);
 702
 703                         m_lists.push_back(list);
 704                 }
 705                 else
 706                 {
 707                         throw SerializationError("Unknown inventory identifier");
 708                 }
 709         }
 710 }
 711
 712 InventoryList * Inventory::addList(const std::string &name, u32 size)
 713 {
 714         s32 i = getListIndex(name);
 715         if(i != -1)
 716         {
 717                 if(m_lists[i]->getSize() != size)
 718                 {
 719                         delete m_lists[i];
 720                         m_lists[i] = new InventoryList(name, size);
 721                 }
 722                 return m_lists[i];
 723         }
 724         else
 725         {
 726                 m_lists.push_back(new InventoryList(name, size));
 727                 return m_lists.getLast();
 728         }
 729 }
 730
 731 InventoryList * Inventory::getList(const std::string &name)
 732 {
 733         s32 i = getListIndex(name);
 734         if(i == -1)
 735                 return NULL;
 736         return m_lists[i];
 737 }
 738
 739 s32 Inventory::getListIndex(const std::string &name)
 740 {
 741         for(u32 i=0; i<m_lists.size(); i++)
 742         {
 743                 if(m_lists[i]->getName() == name)
 744                         return i;
 745         }
 746         return -1;
 747 }
 748
 749 /*
 750         InventoryAction
 751 */
 752
 753 InventoryAction * InventoryAction::deSerialize(std::istream &is)
 754 {
 755         std::string type;
 756         std::getline(is, type, ' ');
 757
 758         InventoryAction *a = NULL;
 759
 760         if(type == "Move")
 761         {
 762                 a = new IMoveAction(is);
 763         }
 764
 765         return a;
 766 }
 767
 768 void IMoveAction::apply(InventoryContext *c, InventoryManager *mgr)
 769 {
 770 #if 1
 771
 772         /*dstream<<"from_inv="<<from_inv<<" to_inv="<<to_inv<<std::endl;
 773         dstream<<"from_list="<<from_list<<" to_list="<<to_list<<std::endl;
 774         dstream<<"from_i="<<from_i<<" to_i="<<to_i<<std::endl;*/
 775
 776         Inventory *inv_from = mgr->getInventory(c, from_inv);
 777         Inventory *inv_to = mgr->getInventory(c, to_inv);
 778
 779         if(!inv_from || !inv_to)
 780         {
 781                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 782                                 <<"(inventories not found)"<<std::endl;
 783                 return;
 784         }
 785
 786         InventoryList *list_from = inv_from->getList(from_list);
 787         InventoryList *list_to = inv_to->getList(to_list);
 788
 789         /*dstream<<"list_from="<<list_from<<" list_to="<<list_to
 790                         <<std::endl;*/
 791         /*if(list_from)
 792                 dstream<<" list_from->getItem(from_i)="<<list_from->getItem(from_i)
 793                                 <<std::endl;
 794         if(list_to)
 795                 dstream<<" list_to->getItem(to_i)="<<list_to->getItem(to_i)
 796                                 <<std::endl;*/
 797
 798         /*
 799                 If a list doesn't exist or the source item doesn't exist
 800         */
 801         if(!list_from || !list_to)
 802         {
 803                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 804                                 <<"(a list doesn't exist)"
 805                                 <<std::endl;
 806                 return;
 807         }
 808         if(list_from->getItem(from_i) == NULL)
 809         {
 810                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 811                                 <<"(the source item doesn't exist)"
 812                                 <<std::endl;
 813                 return;
 814         }
 815         /*
 816                 If the source and the destination slots are the same
 817         */
 818         if(inv_from == inv_to && list_from == list_to && from_i == to_i)
 819         {
 820                 dstream<<__FUNCTION_NAME<<": Operation not allowed "
 821                                 <<"(source and the destination slots are the same)"<<std::endl;
 822                 return;
 823         }
 824
 825         // Take item from source list
 826         InventoryItem *item1 = NULL;
 827         if(count == 0)
 828                 item1 = list_from->changeItem(from_i, NULL);
 829         else
 830                 item1 = list_from->takeItem(from_i, count);
 831
 832         // Try to add the item to destination list
 833         InventoryItem *olditem = item1;
 834         item1 = list_to->addItem(to_i, item1);
 835
 836         // If something is returned, the item was not fully added
 837         if(item1 != NULL)
 838         {
 839                 // If olditem is returned, nothing was added.
 840                 bool nothing_added = (item1 == olditem);
 841
 842                 // If something else is returned, part of the item was left unadded.
 843                 // Add the other part back to the source item
 844                 list_from->addItem(from_i, item1);
 845
 846                 // If olditem is returned, nothing was added.
 847                 // Swap the items
 848                 if(nothing_added)
 849                 {
 850                         // Take item from source list
 851                         item1 = list_from->changeItem(from_i, NULL);
 852                         // Adding was not possible, swap the items.
 853                         InventoryItem *item2 = list_to->changeItem(to_i, item1);
 854                         // Put item from destination list to the source list
 855                         list_from->changeItem(from_i, item2);
 856                 }
 857         }
 858
 859         mgr->inventoryModified(c, from_inv);
 860         if(from_inv != to_inv)
 861                 mgr->inventoryModified(c, to_inv);
 862 #endif
 863 }
 864
 865 /*
 866         Craft checking system
 867 */
 868
 869 bool ItemSpec::checkItem(InventoryItem *item)
 870 {
 871         if(type == ITEM_NONE)
 872         {
 873                 // Has to be no item
 874                 if(item != NULL)
 875                         return false;
 876                 return true;
 877         }
 878
 879         // There should be an item
 880         if(item == NULL)
 881                 return false;
 882
 883         std::string itemname = item->getName();
 884
 885         if(type == ITEM_MATERIAL)
 886         {
 887                 if(itemname != "MaterialItem")
 888                         return false;
 889                 MaterialItem *mitem = (MaterialItem*)item;
 890                 if(mitem->getMaterial() != num)
 891                         return false;
 892         }
 893         else if(type == ITEM_CRAFT)
 894         {
 895                 if(itemname != "CraftItem")
 896                         return false;
 897                 CraftItem *mitem = (CraftItem*)item;
 898                 if(mitem->getSubName() != name)
 899                         return false;
 900         }
 901         else if(type == ITEM_TOOL)
 902         {
 903                 // Not supported yet
 904                 assert(0);
 905         }
 906         else if(type == ITEM_MBO)
 907         {
 908                 // Not supported yet
 909                 assert(0);
 910         }
 911         else
 912         {
 913                 // Not supported yet
 914                 assert(0);
 915         }
 916         return true;
 917 }
 918
 919 bool checkItemCombination(InventoryItem **items, ItemSpec *specs)
 920 {
 921         u16 items_min_x = 100;
 922         u16 items_max_x = 100;
 923         u16 items_min_y = 100;
 924         u16 items_max_y = 100;
 925         for(u16 y=0; y<3; y++)
 926         for(u16 x=0; x<3; x++)
 927         {
 928                 if(items[y*3 + x] == NULL)
 929                         continue;
 930                 if(items_min_x == 100 || x < items_min_x)
 931                         items_min_x = x;
 932                 if(items_min_y == 100 || y < items_min_y)
 933                         items_min_y = y;
 934                 if(items_max_x == 100 || x > items_max_x)
 935                         items_max_x = x;
 936                 if(items_max_y == 100 || y > items_max_y)
 937                         items_max_y = y;
 938         }
 939         // No items at all, just return false
 940         if(items_min_x == 100)
 941                 return false;
 942
 943         u16 items_w = items_max_x - items_min_x + 1;
 944         u16 items_h = items_max_y - items_min_y + 1;
 945
 946         u16 specs_min_x = 100;
 947         u16 specs_max_x = 100;
 948         u16 specs_min_y = 100;
 949         u16 specs_max_y = 100;
 950         for(u16 y=0; y<3; y++)
 951         for(u16 x=0; x<3; x++)
 952         {
 953                 if(specs[y*3 + x].type == ITEM_NONE)
 954                         continue;
 955                 if(specs_min_x == 100 || x < specs_min_x)
 956                         specs_min_x = x;
 957                 if(specs_min_y == 100 || y < specs_min_y)
 958                         specs_min_y = y;
 959                 if(specs_max_x == 100 || x > specs_max_x)
 960                         specs_max_x = x;
 961                 if(specs_max_y == 100 || y > specs_max_y)
 962                         specs_max_y = y;
 963         }
 964         // No specs at all, just return false
 965         if(specs_min_x == 100)
 966                 return false;
 967
 968         u16 specs_w = specs_max_x - specs_min_x + 1;
 969         u16 specs_h = specs_max_y - specs_min_y + 1;
 970
 971         // Different sizes
 972         if(items_w != specs_w || items_h != specs_h)
 973                 return false;
 974
 975         for(u16 y=0; y<specs_h; y++)
 976         for(u16 x=0; x<specs_w; x++)
 977         {
 978                 u16 items_x = items_min_x + x;
 979                 u16 items_y = items_min_y + y;
 980                 u16 specs_x = specs_min_x + x;
 981                 u16 specs_y = specs_min_y + y;
 982                 InventoryItem *item = items[items_y * 3 + items_x];
 983                 ItemSpec &spec = specs[specs_y * 3 + specs_x];
 984
 985                 if(spec.checkItem(item) == false)
 986                         return false;
 987         }
 988
 989         return true;
 990 }
 991
 992 //END