src/saveload/animated_tile_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 animated_tile_sl.cpp Code handling saving and loading of animated tiles */
   9
  10 #include "../stdafx.h"
  11
  12 #include "saveload.h"
  13 #include "compat/animated_tile_sl_compat.h"
  14
  15 #include "../tile_type.h"
  16
  17 #include "../safeguards.h"
  18
  19 extern std::vector<TileIndex> _animated_tiles;
  20
  21 static const SaveLoad _animated_tile_desc[] = {
  22          SLEG_VECTOR("tiles", _animated_tiles, SLE_UINT32),
  23 };
  24
  25 struct ANITChunkHandler : ChunkHandler {
  26         ANITChunkHandler() : ChunkHandler('ANIT', CH_TABLE) {}
  27
  28         void Save() const override
  29         {
  30                 SlTableHeader(_animated_tile_desc);
  31
  32                 SlSetArrayIndex(0);
  33                 SlGlobList(_animated_tile_desc);
  34         }
  35
  36         void Load() const override
  37         {
  38                 /* Before version 80 we did NOT have a variable length animated tile table */
  39                 if (IsSavegameVersionBefore(SLV_80)) {
  40                         /* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
  41                         TileIndex anim_list[256];
  42                         SlCopy(anim_list, 256, IsSavegameVersionBefore(SLV_6) ? (SLE_FILE_U16 | SLE_VAR_U32) : SLE_UINT32);
  43
  44                         for (int i = 0; i < 256; i++) {
  45                                 if (anim_list[i] == 0) break;
  46                                 _animated_tiles.push_back(anim_list[i]);
  47                         }
  48                         return;
  49                 }
  50
  51                 if (IsSavegameVersionBefore(SLV_RIFF_TO_ARRAY)) {
  52                         size_t count = SlGetFieldLength() / sizeof(_animated_tiles.front());
  53                         _animated_tiles.clear();
  54                         _animated_tiles.resize(_animated_tiles.size() + count);
  55                         SlCopy(_animated_tiles.data(), count, SLE_UINT32);
  56                         return;
  57                 }
  58
  59                 const std::vector<SaveLoad> slt = SlCompatTableHeader(_animated_tile_desc, _animated_tile_sl_compat);
  60
  61                 if (SlIterateArray() == -1) return;
  62                 SlGlobList(slt);
  63                 if (SlIterateArray() != -1) SlErrorCorrupt("Too many ANIT entries");
  64         }
  65 };
  66
  67
  68 static const ANITChunkHandler ANIT;
  69 static const ChunkHandlerRef animated_tile_chunk_handlers[] = {
  70         ANIT,
  71 };
  72
  73 extern const ChunkHandlerTable _animated_tile_chunk_handlers(animated_tile_chunk_handlers);