OpenTTD
animated_tile_sl.cpp
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1 /* $Id$ */
2 
3 /*
4  * This file is part of OpenTTD.
5  * 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.
6  * 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.
7  * 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/>.
8  */
9 
12 #include "../stdafx.h"
13 #include "../tile_type.h"
14 #include "../core/alloc_func.hpp"
15 #include "../core/smallvec_type.hpp"
16 
17 #include "saveload.h"
18 
19 #include "../safeguards.h"
20 
22 
26 static void Save_ANIT()
27 {
28  SlSetLength(_animated_tiles.Length() * sizeof(*_animated_tiles.Begin()));
29  SlArray(_animated_tiles.Begin(), _animated_tiles.Length(), SLE_UINT32);
30 }
31 
35 static void Load_ANIT()
36 {
37  /* Before version 80 we did NOT have a variable length animated tile table */
39  /* In pre version 6, we has 16bit per tile, now we have 32bit per tile, convert it ;) */
40  TileIndex anim_list[256];
41  SlArray(anim_list, 256, IsSavegameVersionBefore(SLV_6) ? (SLE_FILE_U16 | SLE_VAR_U32) : SLE_UINT32);
42 
43  for (int i = 0; i < 256; i++) {
44  if (anim_list[i] == 0) break;
45  *_animated_tiles.Append() = anim_list[i];
46  }
47  return;
48  }
49 
50  uint count = (uint)SlGetFieldLength() / sizeof(*_animated_tiles.Begin());
51  _animated_tiles.Clear();
52  _animated_tiles.Append(count);
53  SlArray(_animated_tiles.Begin(), count, SLE_UINT32);
54 }
55 
61  { 'ANIT', Save_ANIT, Load_ANIT, NULL, NULL, CH_RIFF | CH_LAST},
62 };
static bool IsSavegameVersionBefore(SaveLoadVersion major, byte minor=0)
Checks whether the savegame is below major.
Definition: saveload.h:753
void Clear()
Remove all items from the list.
const T * Begin() const
Get the pointer to the first item (const)
Simple vector template class.
size_t SlGetFieldLength()
Get the length of the current object.
Definition: saveload.cpp:740
T * Append(uint to_add=1)
Append an item and return it.
void SlArray(void *array, size_t length, VarType conv)
Save/Load an array.
Definition: saveload.cpp:992
static void Save_ANIT()
Save the ANIT chunk.
Functions/types related to saving and loading games.
uint Length() const
Get the number of items in the list.
static void Load_ANIT()
Load the ANIT chunk; the chunk containing the animated tiles.
SmallVector< TileIndex, 256 > _animated_tiles
The table/list with animated tiles.
const ChunkHandler _animated_tile_chunk_handlers[]
"Definition" imported by the saveload code to be able to load and save the animated tile table...
6.0 1721 6.1 1768
Definition: saveload.h:47
Handlers and description of chunk.
Definition: saveload.h:346
uint32 TileIndex
The index/ID of a Tile.
Definition: tile_type.h:80
void SlSetLength(size_t length)
Sets the length of either a RIFF object or the number of items in an array.
Definition: saveload.cpp:679
80 11228
Definition: saveload.h:140
Last chunk in this array.
Definition: saveload.h:381