src/saveload/depot_sl.cpp

   1 /*
   2  * This file is part of OpenTTD.
   3  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   4  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   5  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   6  */
   7
   8 /** @file depot_sl.cpp Code handling saving and loading of depots */
   9
  10 #include "../stdafx.h"
  11
  12 #include "saveload.h"
  13 #include "compat/depot_sl_compat.h"
  14
  15 #include "../depot_base.h"
  16 #include "../town.h"
  17
  18 #include "../safeguards.h"
  19
  20 static TownID _town_index;
  21
  22 static const SaveLoad _depot_desc[] = {
  23          SLE_CONDVAR(Depot, xy,         SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
  24          SLE_CONDVAR(Depot, xy,         SLE_UINT32,                 SLV_6, SL_MAX_VERSION),
  25         SLEG_CONDVAR("town_index", _town_index, SLE_UINT16,       SL_MIN_VERSION, SLV_141),
  26          SLE_CONDREF(Depot, town,       REF_TOWN,                 SLV_141, SL_MAX_VERSION),
  27          SLE_CONDVAR(Depot, town_cn,    SLE_UINT16,               SLV_141, SL_MAX_VERSION),
  28         SLE_CONDSSTR(Depot, name,       SLE_STR,                  SLV_141, SL_MAX_VERSION),
  29          SLE_CONDVAR(Depot, build_date, SLE_INT32,                SLV_142, SL_MAX_VERSION),
  30 };
  31
  32 struct DEPTChunkHandler : ChunkHandler {
  33         DEPTChunkHandler() : ChunkHandler('DEPT', CH_TABLE) {}
  34
  35         void Save() const override
  36         {
  37                 SlTableHeader(_depot_desc);
  38
  39                 for (Depot *depot : Depot::Iterate()) {
  40                         SlSetArrayIndex(depot->index);
  41                         SlObject(depot, _depot_desc);
  42                 }
  43         }
  44
  45         void Load() const override
  46         {
  47                 const std::vector<SaveLoad> slt = SlCompatTableHeader(_depot_desc, _depot_sl_compat);
  48
  49                 int index;
  50
  51                 while ((index = SlIterateArray()) != -1) {
  52                         Depot *depot = new (index) Depot();
  53                         SlObject(depot, slt);
  54
  55                         /* Set the town 'pointer' so we can restore it later. */
  56                         if (IsSavegameVersionBefore(SLV_141)) depot->town = (Town *)(size_t)_town_index;
  57                 }
  58         }
  59
  60         void FixPointers() const override
  61         {
  62                 for (Depot *depot : Depot::Iterate()) {
  63                         SlObject(depot, _depot_desc);
  64                         if (IsSavegameVersionBefore(SLV_141)) depot->town = Town::Get((size_t)depot->town);
  65                 }
  66         }
  67 };
  68
  69 static const DEPTChunkHandler DEPT;
  70 static const ChunkHandlerRef depot_chunk_handlers[] = {
  71         DEPT,
  72 };
  73
  74 extern const ChunkHandlerTable _depot_chunk_handlers(depot_chunk_handlers);