animated_tile_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 <https://www.gnu.org/licenses/old-licenses/gpl-2.0>.
 */

 
#include "../stdafx.h"
 
#include "saveload.h"
#include "compat/animated_tile_sl_compat.h"
 
#include "../tile_type.h"
 
#include "../safeguards.h"
 
extern std::vector<TileIndex> _animated_tiles;
 
static const SaveLoad _animated_tile_desc[] = {
   SLEG_VECTOR("tiles", _animated_tiles, VarTypes::U32),
};
 
struct ANITChunkHandler : ChunkHandler {
  ANITChunkHandler() : ChunkHandler('ANIT', ChunkType::Table) {}
 
  void Save() const override
  {
    SlTableHeader(_animated_tile_desc);
 
    SlSetArrayIndex(0);
    SlGlobList(_animated_tile_desc);
  }
 
  void Load() const override
  {
    /* Before version 80 we did NOT have a variable length animated tile table */
    if (IsSavegameVersionBefore(SaveLoadVersion::NewGRFMoreAnimation)) {
      /* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
      TileIndex anim_list[256];
      SlCopy(anim_list, 256, IsSavegameVersionBefore(SaveLoadVersion::MultipleRoadStops) ? (VarFileType::U16 | VarMemType::U32) : VarTypes::U32);
 
      for (int i = 0; i < 256; i++) {
        if (anim_list[i] == 0) break;
        _animated_tiles.push_back(anim_list[i]);
      }
      return;
    }
 
    if (IsSavegameVersionBefore(SaveLoadVersion::RiffToArray)) {
      size_t count = SlGetFieldLength() / sizeof(_animated_tiles.front());
      _animated_tiles.clear();
      _animated_tiles.resize(_animated_tiles.size() + count);
      SlCopy(_animated_tiles.data(), count, VarTypes::U32);
      return;
    }
 
    const std::vector<SaveLoad> slt = SlCompatTableHeader(_animated_tile_desc, _animated_tile_sl_compat);
 
    if (SlIterateArray() == -1) return;
    SlGlobList(slt);
    if (SlIterateArray() != -1) SlErrorCorrupt("Too many ANIT entries");
  }
};
 
 
static const ANITChunkHandler ANIT;
static const ChunkHandlerRef animated_tile_chunk_handlers[] = {
  ANIT,
};
 
extern const ChunkHandlerTable _animated_tile_chunk_handlers(animated_tile_chunk_handlers);