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https://github.com/JGRennison/OpenTTD-patches.git
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62 lines
2.2 KiB
C++
62 lines
2.2 KiB
C++
/* $Id$ */
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/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file newgrf_storage.cpp Functionality related to the temporary and persistent storage arrays for NewGRFs. */
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#include "stdafx.h"
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#include "newgrf_storage.h"
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#include "core/pool_func.hpp"
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#include <set>
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PersistentStoragePool _persistent_storage_pool("PersistentStorage");
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INSTANTIATE_POOL_METHODS(PersistentStorage)
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/** The changed storage arrays */
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static std::set<BaseStorageArray*> *_changed_storage_arrays = new std::set<BaseStorageArray*>;
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/**
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* Remove references to use.
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*/
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BaseStorageArray::~BaseStorageArray()
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{
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_changed_storage_arrays->erase(this);
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}
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/**
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* Add the changed storage array to the list of changed arrays.
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* This is done so we only have to revert/save the changed
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* arrays, which saves quite a few clears, etc. after callbacks.
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* @param storage the array that has changed
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*/
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void AddChangedStorage(BaseStorageArray *storage)
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{
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_changed_storage_arrays->insert(storage);
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}
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/**
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* Clear the changes made since the last #ClearStorageChanges.
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* This is done for *all* storages that have been registered to with
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* #AddChangedStorage since the previous #ClearStorageChanges.
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*
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* This can be done in two ways:
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* - saving the changes permanently
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* - reverting to the previous version
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* @param keep_changes do we save or revert the changes since the last #ClearChanges?
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*/
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void ClearStorageChanges(bool keep_changes)
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{
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/* Loop over all changes arrays */
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for (std::set<BaseStorageArray*>::iterator it = _changed_storage_arrays->begin(); it != _changed_storage_arrays->end(); it++) {
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(*it)->ClearChanges(keep_changes);
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}
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/* And then clear that array */
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_changed_storage_arrays->clear();
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}
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