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/* 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 2
* 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, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*
*/
#ifndef ADL_ADL_V4_H
#define ADL_ADL_V4_H
#include "adl/adl_v3.h"
namespace Adl {
// Base track/sector for a region
struct RegionLocation {
byte track;
byte sector;
};
// Location of the 7 initial data blocks, relative to RegionLocation
struct RegionInitDataOffset {
byte track;
byte sector;
byte offset;
byte volume;
};
class AdlEngine_v4 : public AdlEngine_v3 {
public:
virtual ~AdlEngine_v4();
protected:
AdlEngine_v4(OSystem *syst, const AdlGameDescription *gd);
// AdlEngine
virtual void setupOpcodeTables();
virtual void gameLoop();
virtual void loadState(Common::ReadStream &stream);
virtual void saveState(Common::WriteStream &stream);
virtual Common::String loadMessage(uint idx) const;
virtual Common::String getItemDescription(const Item &item) const;
virtual void switchRegion(byte region);
virtual void switchRoom(byte roomNr);
// AdlEngine_v2
virtual void adjustDataBlockPtr(byte &track, byte §or, byte &offset, byte &size) const;
enum RegionChunkType {
kRegionChunkUnknown,
kRegionChunkMessages,
kRegionChunkGlobalPics,
kRegionChunkVerbs,
kRegionChunkNouns,
kRegionChunkRooms,
kRegionChunkRoomCmds,
kRegionChunkGlobalCmds
};
void loadRegionLocations(Common::ReadStream &stream, uint regions);
void loadRegionInitDataOffsets(Common::ReadStream &stream, uint regions);
void initRegions(const byte *roomsPerRegion, uint regions);
void fixupDiskOffset(byte &track, byte §or) const;
virtual RegionChunkType getRegionChunkType(const uint16 addr) const;
void loadRegion(byte region);
void loadItemPicIndex(Common::ReadStream &stream, uint items);
void backupRoomState(byte room);
virtual void initRoomState(RoomState &roomState) const;
virtual byte restoreRoomState(byte room);
void backupVars();
void restoreVars();
virtual int o_isItemInRoom(ScriptEnv &e) override;
virtual int o_isVarGT(ScriptEnv &e);
virtual int o_moveItem(ScriptEnv &e) override;
virtual int o_setRegionToPrev(ScriptEnv &e);
virtual int o_moveAllItems(ScriptEnv &e) override;
virtual int o_setRegion(ScriptEnv &e);
virtual int o_save(ScriptEnv &e) override;
virtual int o_restore(ScriptEnv &e) override;
virtual int o_restart(ScriptEnv &e) override;
virtual int o_setRegionRoom(ScriptEnv &e);
virtual int o_setRoomPic(ScriptEnv &e) override;
Common::Array<RegionLocation> _regionLocations;
Common::Array<RegionInitDataOffset> _regionInitDataOffsets;
Common::SeekableReadStream *_itemPicIndex;
};
} // End of namespace Adl
#endif
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