OpenTTD Source 20241224-master-gf74b0cf984
storage_sl.cpp
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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
10#include "../stdafx.h"
11
12#include "saveload.h"
14
15#include "../newgrf_storage.h"
16
17#include "../safeguards.h"
18
25
28 PSACChunkHandler() : ChunkHandler('PSAC', CH_TABLE) {}
29
30 void Load() const override
31 {
32 const std::vector<SaveLoad> slt = SlCompatTableHeader(_storage_desc, _storage_sl_compat);
33
34 int index;
35
36 while ((index = SlIterateArray()) != -1) {
38 PersistentStorage *ps = new (index) PersistentStorage(0, 0, 0);
39 SlObject(ps, slt);
40 }
41 }
42
43 void Save() const override
44 {
46
47 /* Write the industries */
49 ps->ClearChanges();
50 SlSetArrayIndex(ps->index);
52 }
53 }
54};
55
56static const PSACChunkHandler PSAC;
57static const ChunkHandlerRef persistent_storage_chunk_handlers[] = {
58 PSAC,
59};
60
61extern const ChunkHandlerTable _persistent_storage_chunk_handlers(persistent_storage_chunk_handlers);
std::vector< SaveLoad > SlCompatTableHeader(const SaveLoadTable &slt, const SaveLoadCompatTable &slct)
Load a table header in a savegame compatible way.
int SlIterateArray()
Iterate through the elements of an array and read the whole thing.
Definition saveload.cpp:659
void SlObject(void *object, const SaveLoadTable &slt)
Main SaveLoad function.
std::vector< SaveLoad > SlTableHeader(const SaveLoadTable &slt)
Save or Load a table header.
Functions/types related to saving and loading games.
std::reference_wrapper< const ChunkHandler > ChunkHandlerRef
A reference to ChunkHandler.
Definition saveload.h:509
std::span< const ChunkHandlerRef > ChunkHandlerTable
A table of ChunkHandler entries.
Definition saveload.h:512
#define SLE_CONDARR(base, variable, type, length, from, to)
Storage of a fixed-size array of SL_VAR elements in some savegame versions.
Definition saveload.h:900
#define SLE_CONDVAR(base, variable, type, from, to)
Storage of a variable in some savegame versions.
Definition saveload.h:868
@ SLV_6
6.0 1721 6.1 1768
Definition saveload.h:46
@ SL_MAX_VERSION
Highest possible saveload version.
Definition saveload.h:399
@ SLV_EXTEND_PERSISTENT_STORAGE
201 PR#6885 Extend NewGRF persistent storages.
Definition saveload.h:285
@ SLV_161
161 22567
Definition saveload.h:236
static const SaveLoad _storage_desc[]
Description of the data to save and load in PersistentStorage.
Loading of storage chunks before table headers were added.
const SaveLoadCompat _storage_sl_compat[]
Original field order for _storage_desc.
Handlers and description of chunk.
Definition saveload.h:463
Persistent storage data.
void Save() const override
Save the chunk.
void Load() const override
Load the chunk.
Class for pooled persistent storage of data.
static Pool::IterateWrapper< Titem > Iterate(size_t from=0)
Returns an iterable ensemble of all valid Titem.
static bool CanAllocateItem(size_t n=1)
Helper functions so we can use PoolItem::Function() instead of _poolitem_pool.Function()
SaveLoad type struct.
Definition saveload.h:717