# animated_tile_sl.cpp

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    00001 /* $Id: animated_tile_sl.cpp 21284 2010-11-21 12:47:04Z alberth $ */
    00002
    00003 /*
    00004  * This file is part of OpenTTD.
    00005  * 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.
    00006  * 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.
    00007  * 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/>.
    00008  */
    00009
    00012 #include "../stdafx.h"
    00013 #include "../tile_type.h"
    00014 #include "../core/alloc_func.hpp"
    00015
    00016 #include "saveload.h"
    00017
    00018 extern TileIndex *_animated_tile_list;
    00019 extern uint _animated_tile_count;
    00020 extern uint _animated_tile_allocated;
    00021
    00025 static void Save_ANIT()
    00026 {
    00027   SlSetLength(_animated_tile_count * sizeof(*_animated_tile_list));
    00028   SlArray(_animated_tile_list, _animated_tile_count, SLE_UINT32);
    00029 }
    00030
    00034 static void Load_ANIT()
    00035 {
    00036   /* Before version 80 we did NOT have a variable length animated tile table */
    00037   if (IsSavegameVersionBefore(80)) {
    00038     /* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
    00039     SlArray(_animated_tile_list, 256, IsSavegameVersionBefore(6) ? (SLE_FILE_U16 | SLE_VAR_U32) : SLE_UINT32);
    00040
    00041     for (_animated_tile_count = 0; _animated_tile_count < 256; _animated_tile_count++) {
    00042       if (_animated_tile_list[_animated_tile_count] == 0) break;
    00043     }
    00044     return;
    00045   }
    00046
    00047   _animated_tile_count = (uint)SlGetFieldLength() / sizeof(*_animated_tile_list);
    00048
    00049   /* Determine a nice rounded size for the amount of allocated tiles */
    00050   _animated_tile_allocated = 256;
    00051   while (_animated_tile_allocated < _animated_tile_count) _animated_tile_allocated *= 2;
    00052
    00053   _animated_tile_list = ReallocT<TileIndex>(_animated_tile_list, _animated_tile_allocated);
    00054   SlArray(_animated_tile_list, _animated_tile_count, SLE_UINT32);
    00055 }
    00056
    00061 extern const ChunkHandler _animated_tile_chunk_handlers[] = {
    00062   { 'ANIT', Save_ANIT, Load_ANIT, NULL, NULL, CH_RIFF | CH_LAST},
    00063 };