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https://github.com/libretro/scummvm.git
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108 lines
3.3 KiB
C++
108 lines
3.3 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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*/
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#ifndef ADL_ADL_V4_H
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#define ADL_ADL_V4_H
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#include "adl/adl_v3.h"
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namespace Adl {
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// Base track/sector for a region
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struct RegionLocation {
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byte track;
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byte sector;
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};
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// Location of the 7 initial data blocks, relative to RegionLocation
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struct RegionInitDataOffset {
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byte track;
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byte sector;
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byte offset;
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byte volume;
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};
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class AdlEngine_v4 : public AdlEngine_v3 {
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public:
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virtual ~AdlEngine_v4();
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protected:
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AdlEngine_v4(OSystem *syst, const AdlGameDescription *gd);
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// AdlEngine
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void setupOpcodeTables() override;
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void gameLoop() override;
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void loadState(Common::ReadStream &stream) override;
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void saveState(Common::WriteStream &stream) override;
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Common::String loadMessage(uint idx) const override;
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Common::String getItemDescription(const Item &item) const override;
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void switchRegion(byte region) override;
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void switchRoom(byte roomNr) override;
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// AdlEngine_v2
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void adjustDataBlockPtr(byte &track, byte §or, byte &offset, byte &size) const override;
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enum RegionChunkType {
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kRegionChunkUnknown,
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kRegionChunkMessages,
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kRegionChunkGlobalPics,
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kRegionChunkVerbs,
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kRegionChunkNouns,
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kRegionChunkRooms,
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kRegionChunkRoomCmds,
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kRegionChunkGlobalCmds
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};
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void loadRegionLocations(Common::ReadStream &stream, uint regions);
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void loadRegionInitDataOffsets(Common::ReadStream &stream, uint regions);
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void initRegions(const byte *roomsPerRegion, uint regions);
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void fixupDiskOffset(byte &track, byte §or) const;
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virtual RegionChunkType getRegionChunkType(const uint16 addr) const;
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void loadRegion(byte region);
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void loadItemPicIndex(Common::ReadStream &stream, uint items);
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void backupRoomState(byte room);
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virtual void initRoomState(RoomState &roomState) const;
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virtual byte restoreRoomState(byte room);
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void backupVars();
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void restoreVars();
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int o_isItemInRoom(ScriptEnv &e) override;
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virtual int o_isVarGT(ScriptEnv &e);
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int o_moveItem(ScriptEnv &e) override;
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virtual int o_setRegionToPrev(ScriptEnv &e);
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int o_moveAllItems(ScriptEnv &e) override;
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virtual int o_setRegion(ScriptEnv &e);
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int o_save(ScriptEnv &e) override;
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int o_restore(ScriptEnv &e) override;
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int o_restart(ScriptEnv &e) override;
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virtual int o_setRegionRoom(ScriptEnv &e);
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int o_setRoomPic(ScriptEnv &e) override;
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Common::Array<RegionLocation> _regionLocations;
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Common::Array<RegionInitDataOffset> _regionInitDataOffsets;
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Common::SeekableReadStream *_itemPicIndex;
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};
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} // End of namespace Adl
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#endif
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