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Location: cpp/openttd-patchpack/source/src/newgrf_storage.cpp - annotation
r22389:1757ebccc162
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(svn r27584) -Codechange: Add some assertions about Vehicle::cargo_payment.
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/*
* This file is part of OpenTTD.
* 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.
* 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.
* 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/>.
*/
/** @file newgrf_storage.cpp Functionality related to the temporary and persistent storage arrays for NewGRFs. */
#include "stdafx.h"
#include "newgrf_storage.h"
#include "core/pool_func.hpp"
#include "core/endian_func.hpp"
#include "debug.h"
#include <set>
#include "safeguards.h"
PersistentStoragePool _persistent_storage_pool("PersistentStorage");
INSTANTIATE_POOL_METHODS(PersistentStorage)
/** The changed storage arrays */
static std::set<BasePersistentStorageArray*> *_changed_storage_arrays = new std::set<BasePersistentStorageArray*>;
bool BasePersistentStorageArray::gameloop;
bool BasePersistentStorageArray::command;
bool BasePersistentStorageArray::testmode;
/**
* Remove references to use.
*/
BasePersistentStorageArray::~BasePersistentStorageArray()
{
_changed_storage_arrays->erase(this);
}
/**
* Add the changed storage array to the list of changed arrays.
* This is done so we only have to revert/save the changed
* arrays, which saves quite a few clears, etc. after callbacks.
* @param storage the array that has changed
*/
void AddChangedPersistentStorage(BasePersistentStorageArray *storage)
{
_changed_storage_arrays->insert(storage);
}
/**
* Clear temporary changes made since the last call to SwitchMode, and
* set whether subsequent changes shall be persistent or temporary.
*
* @param mode Mode switch affecting temporary/persistent changes.
* @param ignore_prev_mode Disable some sanity checks for exceptional call circumstances.
*/
/* static */ void BasePersistentStorageArray::SwitchMode(PersistentStorageMode mode, bool ignore_prev_mode)
{
switch (mode) {
case PSM_ENTER_GAMELOOP:
assert(ignore_prev_mode || !gameloop);
assert(!command && !testmode);
gameloop = true;
break;
case PSM_LEAVE_GAMELOOP:
assert(ignore_prev_mode || gameloop);
assert(!command && !testmode);
gameloop = false;
break;
case PSM_ENTER_COMMAND:
assert((ignore_prev_mode || !command) && !testmode);
command = true;
break;
case PSM_LEAVE_COMMAND:
assert(ignore_prev_mode || command);
command = false;
break;
case PSM_ENTER_TESTMODE:
assert(!command && (ignore_prev_mode || !testmode));
testmode = true;
break;
case PSM_LEAVE_TESTMODE:
assert(ignore_prev_mode || testmode);
testmode = false;
break;
default: NOT_REACHED();
}
/* Discard all temporary changes */
for (std::set<BasePersistentStorageArray*>::iterator it = _changed_storage_arrays->begin(); it != _changed_storage_arrays->end(); it++) {
DEBUG(desync, 1, "Discarding persistent storage changes: Feature %d, GrfID %08X, Tile %d", (*it)->feature, BSWAP32((*it)->grfid), (*it)->tile);
(*it)->ClearChanges();
}
_changed_storage_arrays->clear();
}
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