depot_sl.cpp

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/*
 * This file is part of OpenTTD.
 * 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.
 * 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.
 * 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/>.
 */
 
#include "../stdafx.h"
 
#include "saveload.h"
#include "compat/depot_sl_compat.h"
 
#include "../depot_base.h"
#include "../town.h"
 
#include "../safeguards.h"
 
static TownID _town_index;
 
static const SaveLoad _depot_desc[] = {
   SLE_CONDVAR(Depot, xy,         SLE_FILE_U16 | SLE_VAR_U32, SL_MIN_VERSION, SLV_6),
   SLE_CONDVAR(Depot, xy,         SLE_UINT32,                 SLV_6, SL_MAX_VERSION),
  SLEG_CONDVAR("town_index", _town_index, SLE_UINT16,       SL_MIN_VERSION, SLV_141),
   SLE_CONDREF(Depot, town,       REF_TOWN,                 SLV_141, SL_MAX_VERSION),
   SLE_CONDVAR(Depot, town_cn,    SLE_UINT16,               SLV_141, SL_MAX_VERSION),
  SLE_CONDSSTR(Depot, name,       SLE_STR,                  SLV_141, SL_MAX_VERSION),
   SLE_CONDVAR(Depot, build_date, SLE_INT32,                SLV_142, SL_MAX_VERSION),
};
 
struct DEPTChunkHandler : ChunkHandler {
  DEPTChunkHandler() : ChunkHandler('DEPT', CH_TABLE) {}
 
  void Save() const override
  {
    SlTableHeader(_depot_desc);
 
    for (Depot *depot : Depot::Iterate()) {
      SlSetArrayIndex(depot->index);
      SlObject(depot, _depot_desc);
    }
  }
 
  void Load() const override
  {
    const std::vector<SaveLoad> slt = SlCompatTableHeader(_depot_desc, _depot_sl_compat);
 
    int index;
 
    while ((index = SlIterateArray()) != -1) {
      Depot *depot = new (index) Depot();
      SlObject(depot, slt);
 
      /* Set the town 'pointer' so we can restore it later. */
      if (IsSavegameVersionBefore(SLV_141)) depot->town = (Town *)(size_t)_town_index;
    }
  }
 
  void FixPointers() const override
  {
    for (Depot *depot : Depot::Iterate()) {
      SlObject(depot, _depot_desc);
      if (IsSavegameVersionBefore(SLV_141)) depot->town = Town::Get((size_t)depot->town);
    }
  }
};
 
static const DEPTChunkHandler DEPT;
static const ChunkHandlerRef depot_chunk_handlers[] = {
  DEPT,
};
 
extern const ChunkHandlerTable _depot_chunk_handlers(depot_chunk_handlers);