scummvm/engines/obsolete.h
2021-12-26 18:48:43 +01:00

86 lines
2.5 KiB
C++

/* ScummVM - Graphic Adventure Engine
*
* ScummVM is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the COPYRIGHT
* file distributed with this source distribution.
*
* This program 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, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#ifndef ENGINES_OBSOLETE_H
#define ENGINES_OBSOLETE_H
#include "engines/game.h"
namespace Engines {
/**
* @defgroup engines_obsolete Obsolete game IDs
* @ingroup engines
*
* @brief API for managing obsolete game IDs and updating the config file.
*
* @{
*/
/**
* Structure for autoupgrading targets using an obsolete gameid
* to the correct new gameid.
*/
struct ObsoleteGameID {
/** Name of the obsolete gameid. */
const char *from;
/** Name of the corresponding new gameid. */
const char *to;
/**
* If platform is set to a value different from Common::kPlatformUnknown,
* then upgradeTargetIfNecessary() will use this value to set the platform
* attribute of any target it updates using this ObsoleteGameID record.
* This is useful when the old gameid encoded the target platform (e.g.
* "zakTowns" for FM-TOWNS) while the new gameid does not (e.g. "zak").
*/
Common::Platform platform;
};
/**
* Check if the currently active game target has an obsolete gameid;
* if so, replace it by the correct new gameid.
* This function is typically invoked by a MetaEngine::createInstance
* implementation.
*/
void upgradeTargetIfNecessary(const ObsoleteGameID *obsoleteList);
/**
* Scan through the given list of plain game descriptors specified and search
* for 'gameid' in there. If a match is found, returns a GameDescriptor
* with gameid and description set.
*
* Optionally can take a list of obsolete game ids into account in order
* to support obsolete gameids.
*/
PlainGameDescriptor findGameID(
const char *gameid,
const PlainGameDescriptor *gameids,
const ObsoleteGameID *obsoleteList = 0);
/** @} */
} // End of namespace Engines
#endif